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is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.00366">arXiv:2409.00366</a> <span> [<a href="https://arxiv.org/pdf/2409.00366">pdf</a>, <a href="https://arxiv.org/format/2409.00366">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Mini-Proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024)" </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=Achenbach%2C+P">P. Achenbach</a>, <a href="/search/nucl-th?searchtype=author&query=Aoki%2C+K">K. Aoki</a>, <a href="/search/nucl-th?searchtype=author&query=Aoki%2C+S">S. Aoki</a>, <a href="/search/nucl-th?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/nucl-th?searchtype=author&query=Diehl%2C+S">S. Diehl</a>, <a href="/search/nucl-th?searchtype=author&query=Doi%2C+T">T. Doi</a>, <a href="/search/nucl-th?searchtype=author&query=Endo%2C+M">M. Endo</a>, <a href="/search/nucl-th?searchtype=author&query=Fujita%2C+M">M. Fujita</a>, <a href="/search/nucl-th?searchtype=author&query=Fukuda%2C+T">T. Fukuda</a>, <a href="/search/nucl-th?searchtype=author&query=Garcia-Tecocoatzi%2C+H">H. Garcia-Tecocoatzi</a>, <a href="/search/nucl-th?searchtype=author&query=Geng%2C+L+S">L. S. Geng</a>, <a href="/search/nucl-th?searchtype=author&query=Gunji%2C+T">T. Gunji</a>, <a href="/search/nucl-th?searchtype=author&query=Hanhart%2C+C">C. Hanhart</a>, <a href="/search/nucl-th?searchtype=author&query=Harada%2C+M">M. Harada</a>, <a href="/search/nucl-th?searchtype=author&query=Harada%2C+T">T. Harada</a>, <a href="/search/nucl-th?searchtype=author&query=Hayakawa%2C+S">S. Hayakawa</a>, <a href="/search/nucl-th?searchtype=author&query=He%2C+B+R">B. R. He</a>, <a href="/search/nucl-th?searchtype=author&query=Hiyama%2C+E">E. Hiyama</a>, <a href="/search/nucl-th?searchtype=author&query=Honda%2C+R">R. Honda</a>, <a href="/search/nucl-th?searchtype=author&query=Ichikawa%2C+Y">Y. Ichikawa</a>, <a href="/search/nucl-th?searchtype=author&query=Isaka%2C+M">M. Isaka</a>, <a href="/search/nucl-th?searchtype=author&query=Jido%2C+D">D. Jido</a>, <a href="/search/nucl-th?searchtype=author&query=Jinno%2C+A">A. Jinno</a>, <a href="/search/nucl-th?searchtype=author&query=Kamada%2C+K">K. Kamada</a>, <a href="/search/nucl-th?searchtype=author&query=Kamiya%2C+Y">Y. Kamiya</a> , et al. (36 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.00366v1-abstract-short" style="display: inline;"> The mini proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024) [https://kds.kek.jp/event/46965]" held at J-PARC, February 19-21, 2024, are presented. The workshop was devoted to discussing the physics case that connects both the present and the future Hadron Experimental Facility at J-PARC, covering a wide range of topi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.00366v1-abstract-full').style.display = 'inline'; document.getElementById('2409.00366v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.00366v1-abstract-full" style="display: none;"> The mini proceedings of the "Fourth International Workshop on the Extension Project for the J-PARC Hadron Experimental Facility (HEF-ex 2024) [https://kds.kek.jp/event/46965]" held at J-PARC, February 19-21, 2024, are presented. The workshop was devoted to discussing the physics case that connects both the present and the future Hadron Experimental Facility at J-PARC, covering a wide range of topics in flavor, hadron, and nuclear physics related to both experimental and theoretical activities being conducted at the facility. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.00366v1-abstract-full').style.display = 'none'; document.getElementById('2409.00366v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.03626">arXiv:2107.03626</a> <span> [<a href="https://arxiv.org/pdf/2107.03626">pdf</a>, <a href="https://arxiv.org/format/2107.03626">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.104.044304">10.1103/PhysRevC.104.044304 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Quantum Many-Body Calculations using Body-Centered Cubic Lattices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=Song%2C+Y">Young-Ho Song</a>, <a href="/search/nucl-th?searchtype=author&query=Kim%2C+Y">Youngman Kim</a>, <a href="/search/nucl-th?searchtype=author&query=Li%2C+N">Ning Li</a>, <a href="/search/nucl-th?searchtype=author&query=Lu%2C+B">Bing-Nan Lu</a>, <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Rongzheng He</a>, <a href="/search/nucl-th?searchtype=author&query=Lee%2C+D">Dean Lee</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.03626v1-abstract-short" style="display: inline;"> It is often computationally advantageous to model space as a discrete set of points forming a lattice grid. This technique is particularly useful for computationally difficult problems such as quantum many-body systems. For reasons of simplicity and familiarity, nearly all quantum many-body calculations have been performed on simple cubic lattices. Since the removal of lattice artifacts is often a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03626v1-abstract-full').style.display = 'inline'; document.getElementById('2107.03626v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.03626v1-abstract-full" style="display: none;"> It is often computationally advantageous to model space as a discrete set of points forming a lattice grid. This technique is particularly useful for computationally difficult problems such as quantum many-body systems. For reasons of simplicity and familiarity, nearly all quantum many-body calculations have been performed on simple cubic lattices. Since the removal of lattice artifacts is often an important concern, it would be useful to perform calculations using more than one lattice geometry. In this work we show how to perform quantum many-body calculations using auxiliary-field Monte Carlo simulations on a three-dimensional body-centered cubic (BCC) lattice. As a benchmark test we compute the ground state energy of 33 spin-up and 33 spin-down fermions in the unitary limit, which is an idealized limit where the interaction range is zero and scattering length is infinite. As a fraction of the free Fermi gas energy $E_{\rm FG}$, we find that the ground state energy is $E_0/E_{\rm FG}= 0.369(2), 0.371(2),$ using two different definitions of the finite-system energy ratio. This is in excellent agreement with recent results obtained on a cubic lattice \cite{He:2019ipt}. We find that the computational effort and performance on a BCC lattice is approximately the same as that for a cubic lattice with the same number of lattice points. We discuss how the lattice simulations with different geometries can be used to constrain the size lattice artifacts in simulations of continuum quantum many-body systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03626v1-abstract-full').style.display = 'none'; document.getElementById('2107.03626v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, 044304 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1910.01257">arXiv:1910.01257</a> <span> [<a href="https://arxiv.org/pdf/1910.01257">pdf</a>, <a href="https://arxiv.org/ps/1910.01257">ps</a>, <a href="https://arxiv.org/format/1910.01257">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevA.101.063615">10.1103/PhysRevA.101.063615 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Superfluid Condensate Fraction and Pairing Wave Function of the Unitary Fermi Gas </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Rongzheng He</a>, <a href="/search/nucl-th?searchtype=author&query=Li%2C+N">Ning Li</a>, <a href="/search/nucl-th?searchtype=author&query=Lu%2C+B">Bing-Nan Lu</a>, <a href="/search/nucl-th?searchtype=author&query=Lee%2C+D">Dean Lee</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1910.01257v2-abstract-short" style="display: inline;"> The unitary Fermi gas is a many-body system of two-component fermions with zero-range interactions tuned to infinite scattering length. Despite much activity and interest in unitary Fermi gases and its universal properties, there have been great difficulties in performing accurate calculations of the superfluid condensate fraction and pairing wave function. In this work we present auxiliary-field… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.01257v2-abstract-full').style.display = 'inline'; document.getElementById('1910.01257v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1910.01257v2-abstract-full" style="display: none;"> The unitary Fermi gas is a many-body system of two-component fermions with zero-range interactions tuned to infinite scattering length. Despite much activity and interest in unitary Fermi gases and its universal properties, there have been great difficulties in performing accurate calculations of the superfluid condensate fraction and pairing wave function. In this work we present auxiliary-field lattice Monte Carlo simulations using a novel lattice interaction which accelerates the approach to the continuum limit, thereby allowing for robust calculations of these difficult observables. As a benchmark test we compute the ground state energy of 33 spin-up and 33 spin-down particles. As a fraction of the free Fermi gas energy $E_{FG}$, we find $E_0/E_{FG}= 0.369(2), 0.372(2)$, using two different definitions of the finite-system energy ratio, in agreement with the latest theoretical and experimental results. We then determine the condensate fraction by measuring off-diagonal long-range order in the two-body density matrix. We find that the fraction of condensed pairs is $伪= 0.43(2)$. We also extract the pairing wave function and find the pair correlation length to be $味_pk_F = 1.8(3) \hbar$, where $k_F$ is the Fermi momentum. Provided that the simulations can be performed without severe sign oscillations, the methods we present here can be applied to superfluid neutron matter as well as more exotic P-wave and D-wave superfluids. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.01257v2-abstract-full').style.display = 'none'; document.getElementById('1910.01257v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 October, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages and 11 figures, final version to appear Physical Review A</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. A 101, 063615 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1901.01661">arXiv:1901.01661</a> <span> [<a href="https://arxiv.org/pdf/1901.01661">pdf</a>, <a href="https://arxiv.org/format/1901.01661">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevA.100.011403">10.1103/PhysRevA.100.011403 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Time fractals and discrete scale invariance with trapped ions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=Lee%2C+D">Dean Lee</a>, <a href="/search/nucl-th?searchtype=author&query=Watkins%2C+J">Jacob Watkins</a>, <a href="/search/nucl-th?searchtype=author&query=Frame%2C+D">Dillon Frame</a>, <a href="/search/nucl-th?searchtype=author&query=Given%2C+G">Gabriel Given</a>, <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Rongzheng He</a>, <a href="/search/nucl-th?searchtype=author&query=Li%2C+N">Ning Li</a>, <a href="/search/nucl-th?searchtype=author&query=Lu%2C+B">Bing-Nan Lu</a>, <a href="/search/nucl-th?searchtype=author&query=Sarkar%2C+A">Avik Sarkar</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1901.01661v2-abstract-short" style="display: inline;"> We show that a one-dimensional chain of trapped ions can be engineered to produce a quantum mechanical system with discrete scale invariance and fractal-like time dependence. By discrete scale invariance we mean a system that replicates itself under a rescaling of distance for some scale factor, and a time fractal is a signal that is invariant under the rescaling of time. These features are remini… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.01661v2-abstract-full').style.display = 'inline'; document.getElementById('1901.01661v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1901.01661v2-abstract-full" style="display: none;"> We show that a one-dimensional chain of trapped ions can be engineered to produce a quantum mechanical system with discrete scale invariance and fractal-like time dependence. By discrete scale invariance we mean a system that replicates itself under a rescaling of distance for some scale factor, and a time fractal is a signal that is invariant under the rescaling of time. These features are reminiscent of the Efimov effect, which has been predicted and observed in bound states of three-body systems. We demonstrate that discrete scale invariance in the trapped ion system can be controlled with two independently tunable parameters. We also discuss the extension to n-body states where the discrete scaling symmetry has an exotic heterogeneous structure. The results we present can be realized using currently available technologies developed for trapped ion quantum systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.01661v2-abstract-full').style.display = 'none'; document.getElementById('1901.01661v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 July, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 + 5 pages (main + supplemental materials), 2 + 3 figures (main + supplemental materials), version to appear in Physical Review A Rapid Communications</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. A 100, 011403 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.07090">arXiv:1711.07090</a> <span> [<a href="https://arxiv.org/pdf/1711.07090">pdf</a>, <a href="https://arxiv.org/format/1711.07090">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Numerical Analysis">math.NA</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.121.032501">10.1103/PhysRevLett.121.032501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Eigenvector continuation with subspace learning </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=Frame%2C+D">Dillon Frame</a>, <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Rongzheng He</a>, <a href="/search/nucl-th?searchtype=author&query=Ipsen%2C+I">Ilse Ipsen</a>, <a href="/search/nucl-th?searchtype=author&query=Lee%2C+D">Daniel Lee</a>, <a href="/search/nucl-th?searchtype=author&query=Lee%2C+D">Dean Lee</a>, <a href="/search/nucl-th?searchtype=author&query=Rrapaj%2C+E">Ermal Rrapaj</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1711.07090v2-abstract-short" style="display: inline;"> A common challenge faced in quantum physics is finding the extremal eigenvalues and eigenvectors of a Hamiltonian matrix in a vector space so large that linear algebra operations on general vectors are not possible. There are numerous efficient methods developed for this task, but they generally fail when some control parameter in the Hamiltonian matrix exceeds some threshold value. In this work w… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.07090v2-abstract-full').style.display = 'inline'; document.getElementById('1711.07090v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.07090v2-abstract-full" style="display: none;"> A common challenge faced in quantum physics is finding the extremal eigenvalues and eigenvectors of a Hamiltonian matrix in a vector space so large that linear algebra operations on general vectors are not possible. There are numerous efficient methods developed for this task, but they generally fail when some control parameter in the Hamiltonian matrix exceeds some threshold value. In this work we present a new technique called eigenvector continuation that can extend the reach of these methods. The key insight is that while an eigenvector resides in a linear space with enormous dimensions, the eigenvector trajectory generated by smooth changes of the Hamiltonian matrix is well approximated by a very low-dimensional manifold. We prove this statement using analytic function theory and propose an algorithm to solve for the extremal eigenvectors. We benchmark the method using several examples from quantum many-body theory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.07090v2-abstract-full').style.display = 'none'; document.getElementById('1711.07090v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 June, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Version to appear in Physical Review Letters, 4 + 6 pages (main + supplemental materials), 1 + 6 figures (main + supplemental materials)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 121, 032501 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.04077">arXiv:1703.04077</a> <span> [<a href="https://arxiv.org/pdf/1703.04077">pdf</a>, <a href="https://arxiv.org/format/1703.04077">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.95.054908">10.1103/PhysRevC.95.054908 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Differential flow correlations in relativistic heavy-ion collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=Qian%2C+J">Jing Qian</a>, <a href="/search/nucl-th?searchtype=author&query=Heinz%2C+U">Ulrich Heinz</a>, <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Ronghua He</a>, <a href="/search/nucl-th?searchtype=author&query=Huo%2C+L">Lei Huo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.04077v1-abstract-short" style="display: inline;"> A systematic analysis of correlations between different orders of $p_T$-differential flow is presented, including mode coupling effects in flow vectors, correlations between flow angles (a.k.a. event-plane correlations), and correlations between flow magnitudes, all of which were previously studied with integrated flows. We find that the mode coupling effects among differential flows largely mirro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.04077v1-abstract-full').style.display = 'inline'; document.getElementById('1703.04077v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.04077v1-abstract-full" style="display: none;"> A systematic analysis of correlations between different orders of $p_T$-differential flow is presented, including mode coupling effects in flow vectors, correlations between flow angles (a.k.a. event-plane correlations), and correlations between flow magnitudes, all of which were previously studied with integrated flows. We find that the mode coupling effects among differential flows largely mirror those among the corresponding integrated flows, except at small transverse momenta where mode coupling contributions are small. For the fourth- and fifth-order flow vectors $V_4$ and $V_5$ we argue that the event plane correlations can be understood as the ratio between the mode coupling contributions to these flows and and the flow magnitudes. We also find that for $V_4$ and $V_5$ the linear response contribution scales linearly with the corresponding cumulant-defined eccentricities but not with the standard eccentricities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.04077v1-abstract-full').style.display = 'none'; document.getElementById('1703.04077v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 7 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1702.03137">arXiv:1702.03137</a> <span> [<a href="https://arxiv.org/pdf/1702.03137">pdf</a>, <a href="https://arxiv.org/ps/1702.03137">ps</a>, <a href="https://arxiv.org/format/1702.03137">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> </div> <p class="title is-5 mathjax"> Methods for analysis of two-particle rapidity correlation function in high-energy heavy-ion collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Ronghua He</a>, <a href="/search/nucl-th?searchtype=author&query=Qian%2C+J">Jing Qian</a>, <a href="/search/nucl-th?searchtype=author&query=Huo%2C+L">Lei Huo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1702.03137v2-abstract-short" style="display: inline;"> Two-particle rapidity (or pseudorapidity) correlation function $C(y_1, y_2)$ was used in analysing fluctuation of particle density distribution in rapidity in high-energy heavy-ion collisions. In our research, we argue that for a centrality window, some additional correlation may be caused by a centrality span, when the mean two- and single-particle densities over a centrality window are used dire… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1702.03137v2-abstract-full').style.display = 'inline'; document.getElementById('1702.03137v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1702.03137v2-abstract-full" style="display: none;"> Two-particle rapidity (or pseudorapidity) correlation function $C(y_1, y_2)$ was used in analysing fluctuation of particle density distribution in rapidity in high-energy heavy-ion collisions. In our research, we argue that for a centrality window, some additional correlation may be caused by a centrality span, when the mean two- and single-particle densities over a centrality window are used directly in the calculation , just like $\left<N(y_1, y_2) \right> / \left[\left<N(y_1)\right>\left<N(y_2)\right>\right]$. We concentrate on removing the influence of collision-centrality span on correlation function, and two calculation methods are raised. In one method, correlation coefficients are considered to be the ratios of probabilities (not the particle density). In the other method, a relative multiplicity is introduced to unity the events of different centralities. For testing the methods, {\sc ampt} model is used and a toy granular model is built to simulate the fluctuation of particle density in rapidity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1702.03137v2-abstract-full').style.display = 'none'; document.getElementById('1702.03137v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 February, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 7 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1608.04068">arXiv:1608.04068</a> <span> [<a href="https://arxiv.org/pdf/1608.04068">pdf</a>, <a href="https://arxiv.org/ps/1608.04068">ps</a>, <a href="https://arxiv.org/format/1608.04068">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1142/S0217732317500523">10.1142/S0217732317500523 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Extracting temperature and transverse flow by fitting transverse mass spectra and HBT radii together </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-th?searchtype=author&query=He%2C+R">Ronghua He</a>, <a href="/search/nucl-th?searchtype=author&query=Qian%2C+J">Jing Qian</a>, <a href="/search/nucl-th?searchtype=author&query=Chen%2C+J">Jianyi Chen</a>, <a href="/search/nucl-th?searchtype=author&query=Wu%2C+Q">Qingxin Wu</a>, <a href="/search/nucl-th?searchtype=author&query=Huo%2C+L">Lei Huo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1608.04068v2-abstract-short" style="display: inline;"> Single particle transverse mass spectra and HBT radii of identical pion and identical kaon are analyzed with a blast-wave parametrization under the assumptions local thermal equilibrium and transverse expansion. Under the assumptions, temperature parameter $T$ and transverse expansion rapidity $蟻$ are sensitive to the shapes of transverse mass $m_\text T$ spectrum and HBT radius… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.04068v2-abstract-full').style.display = 'inline'; document.getElementById('1608.04068v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1608.04068v2-abstract-full" style="display: none;"> Single particle transverse mass spectra and HBT radii of identical pion and identical kaon are analyzed with a blast-wave parametrization under the assumptions local thermal equilibrium and transverse expansion. Under the assumptions, temperature parameter $T$ and transverse expansion rapidity $蟻$ are sensitive to the shapes of transverse mass $m_\text T$ spectrum and HBT radius $R_\text{s}(K_\text T)$. Negative and positive correlations between $T$ and $蟻$ are observed by fitting $m_\text{T}$ spectrum and HBT radius $R_\text s (K_\text T)$, respectively. For a Monte Carlo simulation using the blast-wave function, $T$ and $蟻$ are extracted by fitting $m_T$ spectra and HBT radii together utilizing a combined optimization function $蠂^2$. With this method, $T$ and $蟻$ of the Monte Carlo sources can be extracted. Using this method for A Multi-Phase Transport model (AMPT) at RHIC energy, the differences of $T$ and $蟻$ between pion and kaon are observed obviously, and the tendencies of $T$ and $蟻$ vs collision energy $\sqrt{s_\text{NN}}$ are similar with the results extracted directly from the AMPT model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.04068v2-abstract-full').style.display = 'none'; document.getElementById('1608.04068v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 August, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Modern Physics Letters A, Vol. 32, No. 9 (2017) 1750052 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 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