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<button class="button is-small 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/2305.11518">arXiv:2305.11518</a> <span> [<a href="https://arxiv.org/pdf/2305.11518">pdf</a>, <a href="https://arxiv.org/format/2305.11518">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Quantum sensing for particle physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bass%2C+S+D">Steven D. Bass</a>, <a href="/search/physics?searchtype=author&query=Doser%2C+M">Michael Doser</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="2305.11518v2-abstract-short" style="display: inline;"> Quantum sensing is a rapidly growing approach to probe fundamental physics and explore new phase space for possible new physics with precision and highly sensitive measurements in our quest to understand the deep structure of matter and its interactions. This field uses properties of quantum mechanics in the detectors to go beyond traditional measurement techniques. Key particle physics topics whe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.11518v2-abstract-full').style.display = 'inline'; document.getElementById('2305.11518v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.11518v2-abstract-full" style="display: none;"> Quantum sensing is a rapidly growing approach to probe fundamental physics and explore new phase space for possible new physics with precision and highly sensitive measurements in our quest to understand the deep structure of matter and its interactions. This field uses properties of quantum mechanics in the detectors to go beyond traditional measurement techniques. Key particle physics topics where quantum sensing can play a vital role include neutrino properties, tests of fundamental symmetries (Lorentz invariance and the equivalence principle as well as searches for electric dipole moments and possible variations in fundamental constants), the search for dark matter and testing ideas about the nature of dark energy. Interesting new sensor technologies include atom interferometry, optomechanical devices, and atomic and nuclear clocks including with entanglement. This Perspective explores the opportunities for these technologies in future particle physics experiments, opening new windows on the structure of the Universe. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.11518v2-abstract-full').style.display = 'none'; document.getElementById('2305.11518v2-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> 25 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </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">16 pages, 1 figure</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.09246">arXiv:2302.09246</a> <span> [<a href="https://arxiv.org/pdf/2302.09246">pdf</a>, <a href="https://arxiv.org/format/2302.09246">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Medical Physics">physics.med-ph</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="Instrumentation and Detectors">physics.ins-det</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/RevModPhys.95.021002">10.1103/RevModPhys.95.021002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Positronium Physics and Biomedical Applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bass%2C+S+D">Steven D. Bass</a>, <a href="/search/physics?searchtype=author&query=Mariazzi%2C+S">Sebastiano Mariazzi</a>, <a href="/search/physics?searchtype=author&query=Moskal%2C+P">Pawel Moskal</a>, <a href="/search/physics?searchtype=author&query=Stepien%2C+E">Ewa Stepien</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="2302.09246v2-abstract-short" style="display: inline;"> Positronium is the simplest bound state, built of an electron and a positron. Studies of positronium in vacuum and its decays in medium tell us about Quantum Electrodynamics, QED, and about the structure of matter and biological processes of living organisms at the nanoscale, respectively. Spectroscopic measurements constrain our understanding of QED bound state theory. Searches for rare decays an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.09246v2-abstract-full').style.display = 'inline'; document.getElementById('2302.09246v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.09246v2-abstract-full" style="display: none;"> Positronium is the simplest bound state, built of an electron and a positron. Studies of positronium in vacuum and its decays in medium tell us about Quantum Electrodynamics, QED, and about the structure of matter and biological processes of living organisms at the nanoscale, respectively. Spectroscopic measurements constrain our understanding of QED bound state theory. Searches for rare decays and measurements of the effect of gravitation on positronium are used to look for new physics phenomena. In biological materials positronium decays are sensitive to the inter- and intra-molecular structure and to the metabolism of living organisms ranging from single cells to human beings. This leads to new ideas of positronium imaging in medicine using the fact that during positron emission tomography (PET) as much as 40% of positron annihilation occurs through the production of positronium atoms inside the patient's body. A new generation of the high sensitivity and multi-photon total-body PET systems opens perspectives for clinical applications of positronium as a biomarker of tissue pathology and the degree of tissue oxidation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.09246v2-abstract-full').style.display = 'none'; document.getElementById('2302.09246v2-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> 6 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </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">Colloquium, 23 pages, preprint of article in Reviews of Modern Physics</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Rev. Mod. Phys. 95 (2023), 021002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.07467">arXiv:2006.07467</a> <span> [<a href="https://arxiv.org/pdf/2006.07467">pdf</a>, <a href="https://arxiv.org/format/2006.07467">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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/10.1016/j.nima.2021.165452">10.1016/j.nima.2021.165452 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The J-PET detector -- a tool for precision studies of ortho-positronium decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Dulski%2C+K">K. Dulski</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+S+D">S. D. Bass</a>, <a href="/search/physics?searchtype=author&query=Chhokar%2C+J">J. Chhokar</a>, <a href="/search/physics?searchtype=author&query=Chug%2C+N">N. Chug</a>, <a href="/search/physics?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/physics?searchtype=author&query=Czerwi%C5%84ski%2C+E">E. Czerwi艅ski</a>, <a href="/search/physics?searchtype=author&query=Dadgar%2C+M">M. Dadgar</a>, <a href="/search/physics?searchtype=author&query=Gajewski%2C+J">J. Gajewski</a>, <a href="/search/physics?searchtype=author&query=Gajos%2C+A">A. Gajos</a>, <a href="/search/physics?searchtype=author&query=Gorgol%2C+M">M. Gorgol</a>, <a href="/search/physics?searchtype=author&query=Del+Grande%2C+R">R. Del Grande</a>, <a href="/search/physics?searchtype=author&query=Hiesmayr%2C+B+C">B. C. Hiesmayr</a>, <a href="/search/physics?searchtype=author&query=Jasi%C5%84ska%2C+B">B. Jasi艅ska</a>, <a href="/search/physics?searchtype=author&query=Kacprzak%2C+K">K. Kacprzak</a>, <a href="/search/physics?searchtype=author&query=Kap%C5%82on%2C+%C5%81">艁. Kap艂on</a>, <a href="/search/physics?searchtype=author&query=Karimi%2C+H">H. Karimi</a>, <a href="/search/physics?searchtype=author&query=Kisielewska%2C+D">D. Kisielewska</a>, <a href="/search/physics?searchtype=author&query=Klimaszewski%2C+K">K. Klimaszewski</a>, <a href="/search/physics?searchtype=author&query=Kopka%2C+P">P. Kopka</a>, <a href="/search/physics?searchtype=author&query=Korcyl%2C+G">G. Korcyl</a>, <a href="/search/physics?searchtype=author&query=Kowalski%2C+P">P. Kowalski</a>, <a href="/search/physics?searchtype=author&query=Kozik%2C+T">T. Kozik</a>, <a href="/search/physics?searchtype=author&query=Krawczyk%2C+N">N. Krawczyk</a>, <a href="/search/physics?searchtype=author&query=Krzemie%C5%84%2C+W">W. Krzemie艅</a>, <a href="/search/physics?searchtype=author&query=Kubicz%2C+E">E. Kubicz</a> , et al. (19 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="2006.07467v3-abstract-short" style="display: inline;"> The J-PET tomograph is constructed from plastic scintillator strips arranged axially in concentric cylindrical layers. It enables investigations of positronium decays by measurement of the time, position, polarization and energy deposited by photons in the scintillators, in contrast to studies conducted so far with crystal and semiconductor based detection systems where the key selection of events… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.07467v3-abstract-full').style.display = 'inline'; document.getElementById('2006.07467v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.07467v3-abstract-full" style="display: none;"> The J-PET tomograph is constructed from plastic scintillator strips arranged axially in concentric cylindrical layers. It enables investigations of positronium decays by measurement of the time, position, polarization and energy deposited by photons in the scintillators, in contrast to studies conducted so far with crystal and semiconductor based detection systems where the key selection of events is based on the measurement of the photons energies. In this article we show that the J-PET tomograph system is capable of exclusive measurements of the decays of ortho-positronium atoms. We present the first positronium production results, its lifetime distribution measurements and discuss estimation of the influence of various background sources. The tomograph s performance demonstrated here makes it suitable for precision studies of positronium decays including entanglement of the final state photons, positron annihilation lifetime spectroscopy plus molecular imaging diagnostics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.07467v3-abstract-full').style.display = 'none'; document.getElementById('2006.07467v3-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> 25 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </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> </ol> <div 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