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<!DOCTYPE html PUBLIC "-//w3c//dtd html 4.0 transitional//en"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="GENERATOR" content="Mozilla/4.79 [en] (X11; U; Linux 2.2.12-20 i686) [Netscape]"> <title>Homepage of Prof. Kumar S. Gupta</title> </head> <body style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 204); background-image: url(file:///home/ksgupta/Homepage/tx2.jpg);" link="#009900" vlink="#009900" alink="#ff0000"> <center> <hr width="100%">Welcome to the Homepage of <img src="myname.gif" height="50" width="285"> <hr></center> <tt>I am member in the <a href="http://theory.saha.ernet.in">Theory Division</a> of <a href="http://www.saha.ernet.in">Saha Institute of Nuclear Physics </a>.</tt> <tt>My main areas of </tt>Research Interests<tt> </tt><tt>are :</tt> <blockquote> <blockquote> <blockquote> <center><tt> Black Holes</tt> <tt>Quantum Field Theory</tt> <tt>Noncommutative Geometry</tt> <tt>Mathematical Physics</tt> <tt>High Energy Physics</tt> </center> </blockquote> </blockquote> </blockquote> Recent  Publications : <ol> <li><tt>Asymptotic Quasinormal Modes of d-Dimensional Schwarzschild Black Holes with Gauss-Bonnet Correction </tt> <tt>Sayan K. Chakrabarti and Kumar S. Gupta</tt> <tt>to appear in Int. Jour. Mod. Phys. A</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0506133">hep-th/0506133</a> </tt> </li> <li><tt>Geometric Finiteness and Non-quasinormal Modes of the BTZ Black Hole </tt> <tt>Kumar S. Gupta and Siddhartha Sen</tt> <tt>Phys. Lett. B618, 237 (2005)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0504175">hep-th/0504175</a> </tt> </li> <li><tt>Waves on Noncommutative Spacetimes</tt> <tt>A. P. Balachandran, Kumar S. Gupta and S. Kurkcuoglu</tt> <tt>Phys. Rev. D73, 025021 (2006)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0503087">hep-th/0503087</a></tt><a href="http://lanl.arXiv.org/ps/hep-th/0503087"> </a><tt> </tt> </li> <li><tt>On the Real Spectra of Calogero Model with Complex Coupling</tt></li> <tt>Pijush K. Ghosh and Kumar S. Gupta</tt> <tt>Phys. Lett. A323, 29 (2004)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0310276">hep-th/0310276</a></tt>   <li><tt>Edge Currents in Non-Commutative Chern-Simons Theory</tt></li> <tt>from a New Matrix Model</tt> <tt>A. P. Balachandran, Kumar S. Gupta and S. Kurkcuoglu</tt> <tt>JHEP 0309, 007 (2003)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0306255">hep-th/0306255</a></tt>   <li><tt>Hidden Degeneracy in the Brick Wall Model of Black Holes</tt></li> <tt>Kumar S. Gupta and Siddhartha Sen</tt> <tt>Mod. Phys. Lett. A18, 1463 (2003)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0302183">hep-th/0302183</a></tt>   <li><tt>Inequivalent Quantizations of the Rational Calogero Models</tt></li> <tt>B. Basu-Mallick, Pijush K. Ghosh and Kumar S. Gupta</tt> <tt>Phys. Lett. A311, 87 (2003)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0208132">hep-th/0208132</a></tt>   <li><tt>Novel Quantum States of the Rational Calogero Models without</tt></li> <tt>the Confining Interaction</tt> <tt>B. Basu-Mallick, Pijush K. Ghosh and Kumar S. Gupta</tt> <tt>Nucl. Phys. B659, 437 (2003)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0207040">hep-th/0207040</a></tt>   <li><tt>Black Hole Decay as Geodesic Motion</tt></li> <tt>Kumar S. Gupta and Siddhartha Sen</tt> <tt>Phys. Lett. B574, 93 (2003)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0203094">hep-th/0203094</a></tt>   <li><tt>Further Evidence for the Conformal Structure of a Schwarzschild</tt></li> <tt>Black Hole in an Algebraic Approach</tt> <tt>Kumar S. Gupta and Siddhartha Sen</tt> <tt>Phys. Lett. B526, 121 (2002)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0112041">hep-th/0112041</a></tt>   <li><tt>Bound States in One-Dimensional Quantum N-Body Systems with</tt></li> <tt>Inverse Square Interaction</tt> <tt>B. Basu-Mallick and Kumar S. Gupta</tt> <tt>Phys. Lett. A292, 36 (2001)</tt> <tt><a href="http://lanl.aXiv.org/ps/hep-th/0109022">hep-th/0109022</a></tt>   <li><tt>Near-Horizon Conformal Structure of Black Holes</tt></li> <tt>Danny Birmingham, Kumar S. Gupta and Siddhartha Sen</tt> <tt>Phys. Lett. B505, 191 (2001)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0102051">hep-th/0102051</a></tt>   <li><tt>Quantum Field Theories on Null Surfaces</tt></li> <tt>Kumar S. Gupta and Badis Ydri</tt> <tt>Int. Jour. Mod. Phys. A16, 1789 (2001)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0002177">hep-th/0002177</a></tt> </ol> Recent Seminars and Conference Talks : <ol> <li><tt>Aspects of Quantum Inverse Square Interaction</tt> <tt>Hamilton Mathematics Institute, Trinity College Dublin</tt> <tt>Dublin, Ireland, March 2005 (seminar)</tt> </li> <li><tt>Edge Currents in Noncommutative Chern-Simons Theories on Manifolds with Boundaries </tt> <tt>Conference on Higher Dimensional Quantum Hall Effect, Chern-Simons Theory,</tt> <tt>and Noncommutative Geometry in Condensed Matter Physics and Field Theory,</tt> <tt>Abdus Salam ICTP, Trieste, Italy, 1-4 March, 2005 (invited talk) </tt> </li> <li><tt>Aspects of Near-Horizon Conformal Symmetry</tt></li> <tt>Sixth Alexander Friedmann International Seminar</tt> <tt>on Gravitation and Cosmology</tt> <tt>Cargese, Corsica, France, July 2004 (invited talk)</tt>   <li><tt>Near-Horizon Conformal Symmetry and Properties of Black Holes</tt></li> <tt>Department of Physics, University of Zagreb</tt> <tt>Zagreb, Croatia, May 2004 (seminar)</tt>   <li><tt>Aspects of Calogero Model</tt></li> <tt>Ruder Boskovic Institute</tt> <tt>Zagreb, Croatia, May 2004 (seminar)</tt>   <li><tt>Near-Horizon Conformal Symmetry and Properties of Black Holes</tt></li> <tt>Max Planck Institute for Gravitational Physics</tt> <tt>Albert Einstein Institute</tt> <tt>Golm, Germany, May 2004 (seminar)</tt>   <li><tt>Quantum Aspects of the Inverse Square Interaction</tt></li> <tt>Saha Institute of Nuclear Physics</tt> <tt>Calcutta, India, December 2003 (seminar)</tt>   <li><tt>Strong Coupling Inverse Square Interaction - Quantum Aspects</tt></li> <tt>Raman Research Institute</tt> <tt>Bangalore, India, November 2003 (seminar)</tt>   <li><tt>Degeneracy of Quantum States in the Near-Horizon Region of Black Holes</tt></li> <tt>School of Mathematics</tt> <tt>Trinity College Dublin</tt> <tt>Dublin, Ireland, September 2003 (seminar)</tt>   <li><tt>Noncommutative Chern-Simons Theory on a Manifold with Boundaries</tt></li> <tt>Workshop on Noncommutative Geometry</tt> <tt>Dublin Institute of Advanced Studies</tt> <tt>Dublin, Ireland, September 2003 (invited talk)</tt>   <li><tt>Quantum Inverse Square Interaction</tt></li> <tt>Conference on Spacetime and Fundamental Interactions : Quantum Aspects</tt> <tt>Vietri sul Mare, Italy, May 2003 (invited talk)</tt> <tt>Mod. Phys. Lett. A18, 2355 (2003)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0308192">hep-th/0308192</a></tt>   <li><tt>Hidden Degeneracy in the Near-Horizon Region of Black Holes</tt></li> <tt>Department of Mathematics, Rome University "La Sapienza"</tt> <tt>Rome, Italy, May 2003 (seminar)</tt>   <li><tt>Quantum Inverse Square Interaction</tt></li> <tt>Theory Division, Abdus Salam ICTP</tt> <tt>Trieste, Italy, May 2003 (seminar)</tt>   <li><tt>Near-horizon States of Black Holes and Calogero Models</tt></li> <tt>PASCOS 2003,</tt> <tt>TIFR, Mumbai, India, Januray 2003 (contributed talk)</tt> <tt>Pramana 62, 691 (2004)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0304071">hep-th/0304071</a></tt>   <li><tt>Near-Horizon Conformal Structure and Entropy of Schwarzschild Black Holes</tt></li> <tt>International Workshop on Integrable Models, Strings and Quantum Gravity IMSC, Chennai, January 2002 (invited talk)</tt> <tt><a href="http://lanl.arXiv.org/ps/hep-th/0204137">hep-th/0204137</a></tt>   <li><tt>Black Holes and Conformal Field Theory</tt></li> <tt>National Conference on Contemporary Issues in Nuclear and Particle Physics Jadavpur University, Kolkata, India, December 2001 (contributed talk)</tt>   <li><tt>Probing the Near Horizon Conformal Structure of Black Holes</tt></li> <tt>Frontiers of Mathematical Physics Workshop on Particles, Fields and Strings Simon Fraser University, Burnaby, Canada, July 2001 (invited talk)</tt>   <li><tt>Black Holes and the Near Horizon Conformal Structure</tt></li> <tt>Dept.of Physics, University of British Columbia Vancouver, Canada, July 2001 (seminar)</tt>   <li><tt>Near Horizon Conformal Structure of Black Holes</tt></li> <tt>Saha Institute of Nuclear Physics Calcutta, India, April 2001 (seminar)</tt> </ol>         </body> </html>