Publications

Journal publications/Preprints

    Non-equilibrium quantum field theory, dynamics of ultracold quantum gases, molecule formation in Bose-Einstein condensates, matter waves, squeezing and entanglement

    • Nonthermal fixed points, vortex statistics, and superfluid turbulence in an ultracold Bose gas
      By B. Nowak, J. Schole, D. Sexty, and T. Gasenzer,
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Nov 2011. 20 pp., 23 figs.
          arXiv:1111.6127 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Charge separation in Reheating after Cosmological Inflation
      By T. Gasenzer, B. Nowak, and D. Sexty
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Aug 2011. 4 pp., 6 figs.
          arXiv:1108.0541 [hep-ph] [Abstract, Full Text, PDF, Other Formats]

    • Non-equilibrium Quantum Many-Body Dynamics: Functional Integral Approaches
      By C. Bodet, M. Kronenwett, B. Nowak, D. Sexty, and T. Gasenzer,
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Dec 2010. 18 pp., 6 figs.
          arXiv:1101.0397 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Superfluid Turbulence: Nonthermal Fixed Point in an Ultracold Bose Gas
      By B. Nowak, D. Sexty, and T. Gasenzer,
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Dec 2010. 4 pp., 5 figs.
      Published in Phys. Rev. B 84: 020506(R), 2011
          Abstract   Full Text: [  PDF (422 kB)  ]
          arXiv:1012.4437 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Real-time effective-action approach to the Anderson quantum dot
      By D. Sexty, T. Gasenzer, and J. M. Pawlowski
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Dec 2010. 12 pp., 13 figs.
      Published in Phys. Rev. B 83: 165315, 2011
          Abstract   Full Text: [  PDF (650 kB)  ]
          arXiv:1012.4293 [cond-mat.mes-hall] [Abstract, Full Text, PDF, Other Formats]

    • Far-from-equilibrium dynamics of an ultracold Fermi gas
      By M. Kronenwett and T. Gasenzer,
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Dec 2010. 20 pp., 11 figs.
      Published in Appl. Phys. B 102 (3): 469-488, 2011
          Abstract   Full Text: [  PDF (1.2 MB)   ]
          arXiv:1012.3874 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Non-thermal equilibration of a one-dimensional Fermi gas
      By M. Kronenwett and T. Gasenzer,
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Mar 2010. 4 pp., 4 figs.
          arXiv:1006.3330 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Far-from-equilibrium quantum many-body dynamics
      By T. Gasenzer, S. Keßler, and J.M. Pawlowski,
          (ITP, Univ. of Heidelberg, Germany, and EMMI Darmstadt, Germany), Mar 2010. 20 pp., 6 figs.
      Published in Eur. Phys. Journ. C 70: 423, 2010
          Abstract   Full Text: [  PDF (801 kB)   ]
          arXiv:1003.4163 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Two-mode Bose gas: Beyond classical squeezing
      By C. Bodet (1,3), J. Estève (2), M. K. Oberthaler (2,3), and T. Gasenzer (1,3),
          (1: ITP, Univ. of Heidelberg, Germany, 2: KIP, Univ. of Heidelberg, Germany, 3: EMMI Darmstadt, Germany), Feb 2010. 15 pp., 16 figs.
      Published in Phys. Rev. A 81: 063605, 2010
          Abstract   Full Text: [  PDF (1.741 kB)  GZipped PS   ]
          arXiv:1002.2504 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Matter Wave Turbulence: Beyond Kinetic Scaling
      By C. Scheppach (1), J. Berges (2,3), and T. Gasenzer (1,3),
          (1: Univ. of Heidelberg, Germany, 2: TU Darmstadt, Germany, 3: EMMI Darmstadt, Germany), Dec 2009. 18 pp., 2 figs.
      Published in Phys. Rev. A 81: 033611, 2010
          Abstract   Full Text: [  PDF (390 kB)  GZipped PS   ]
          arXiv:0912.4183 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Single-particle density matrix for a time-dependent strongly interacting one-dimensional Bose gas
      By R. Pezer (1), T. Gasenzer (2), and H. Buljan (1),
          (1: Univ. of Zagreb, Croatia, 2: Univ. of Heidelberg, Germany), Jul 2009. 7 pp., 2 figs.
      Published in Phys. Rev. A 80: 053616, 2009
          Abstract   Full Text: [  PDF (176 kB)  GZipped PS   ]
          arXiv:0907.4608 [cond-mat.quant-gas] [Abstract, Full Text, PDF, Other Formats]

    • Ultracold gases far from equilibrium
      By Thomas Gasenzer
          University of Heidelberg, Germany, November 2008. 59 pages, 26 figures. Lecture notes, 46. Int. Universitätswochen f. Theoret. Physik, Schladming, Austria, 2008.
      Published in Eur. Phys. Journ. ST 168: 89, 2009.
          Abstract   Full Text: [  PDF (1.8 MB)   ]
          arXiv:0812.0004 [cond-mat.other] [Abstract, Full Text, PDF, Other Formats]

    • Free expansion of a Lieb-Liniger gas: Asymptotic form of the wave functions
      By D. Jukić (1), R. Pezer (1), T. Gasenzer (2,3), and H. Buljan (1),
          (1: University of Zagreb, Croatia, 2: University of Heidelberg, Germany, 3: KITP, Sta Barbara, CA), Apr 2008. 7 pages, 2 figures.
      Published in Phys. Rev. A 78: 053602, 2008
          Abstract   Full Text: [  PDF (542 kB)  GZipped PS   ]
          arXiv:0804.2580 [cond-mat.other] [Abstract, Full Text, PDF, Other Formats]

    • 2PI nonequilibrium versus transport equations for an ultracold Bose gas
      By Alexander Branschädel and Thomas Gasenzer,
          (University of Heidelberg, Germany), Jan 2008. 24 pages, 7 figures.
      Published in J. Phys. B 41: 135302, 2008
          Abstract   Full Text: [  PDF (1.08 MB)  References   ]
          arXiv:0801.4466 [cond-mat.other] [Abstract, Full Text, PDF, Other Formats]

    • Functional renormalisation group approach to far-from-equilibrium quantum field dynamics
      By Thomas Gasenzer and Jan M. Pawlowski,
          (University of Heidelberg, Germany), Oct 2007. 6 pages, 5 figures.
      Published in Phys. Lett. B 670: 135, 2008
          Abstract   Full Text: [  PDF (394 kB)   ]
          arXiv:0710.4627 [cond-mat.other] [Abstract, Full Text, PDF, Other Formats]

    • Fermi-Bose transformation for the time-dependent Lieb-Liniger gas
      By Hrvoje Buljan (1), Robert Pezer (1) and Thomas Gasenzer (2),
          (1: University of Zagreb, Croatia, 2: University of Heidelberg, Germany), Sep 2007. 4 pages RevTeX, 1 figure.
      Published in Phys. Rev. Lett. 100: 080406, 2008
          Abstract   Full Text: [  PDF (344 kB)  GZipped PS   ]
          arXiv:0709.1444 [cond-mat.other] [Abstract, Full Text, PDF, Other Formats]

    • Quantum versus classical statistical dynamics of an ultracold Bose gas
      By Jürgen Berges and Thomas Gasenzer,
          University of Heidelberg, Germany, March 2007. 19 pages RevTeX, 10 figures.
      Published in Phys. Rev. A 76: 033604, 2007
          Abstract   Full Text: [  PDF (697 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0703163 [Abstract, Full Text, PDF, Other Formats]

    • Non-equilibrium dynamics of condensates in a lattice from the 2PI effective action in 1/N expansion
      By Kristan Temme and Thomas Gasenzer,
          University of Heidelberg, Germany, June 2006. 9 pages RevTeX, 3 figures.
      Published in Phys. Rev. A 74: 053603, 2006
          Abstract   Full Text: [  PDF (542 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0607116 [Abstract, Full Text, PDF, Other Formats]

    • Non-perturbative dynamical many-body theory of a Bose-Einstein condensate
      By T. Gasenzer, Jürgen Berges, Michael G. Schmidt, Marcos Seco,
          University of Heidelberg, Germany, Jul 2005. 20 pages RevTeX, 12 figures.
      Published in Phys. Rev. A 72: 063604, 2005
          Abstract   Full Text: [  PDF (294 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0507480 [Abstract, Full Text, PDF, Other Formats]

    • Photoassociation dynamics in a Bose-Einstein condensate
      By T. Gasenzer,
          University of Heidelberg, Germany, Jun 2004. 25 pages RevTeX, 16 figures.
      Published in Phys. Rev. A 70: 043618, 2004
          Abstract   Full Text: [  PDF (294 kB)  GZipped PS   ]   Typo! See: ErratumPDF   ]
          e-Print Archive: cond-mat/0406629 [Abstract, Full Text, PDF, Other Formats]

    • Heating and atom loss during upward ramps of Feshbach resonance levels in Bose-Einstein condensates
      By T. Köhler (1), K. Goral (1), T. Gasenzer (2),
          (1:University of Oxford, UK; 2: University of Heidelberg, Germany), Apr 2004. 11 pages RevTeX, 7 figures.
      Published in Phys. Rev. A 70: 023613, 2004
         Abstract   Full Text: [  PDF (229 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0305060 [Abstract, Full Text, PDF, Other Formats]

    • High light intensity photoassociation in a Bose-Einstein condensate
      By T. Gasenzer,
          University of Heidelberg, Germany, Jan 2004. 4 pages RevTeX, 4 figures.
      Published in Phys. Rev. A 70: 021603(R), 2004
         Abstract   Full Text: [  PDF (68 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0401219 [Abstract, Full Text, PDF, Other Formats]

    • Dynamics of correlations in atomic Bose-Einstein condensates
      By K. Goral (1), T. Köhler (1), T. Gasenzer (2), and K. Burnett (1),
          (1:University of Oxford, UK; 2:University of Heidelberg, Germany),
      Published in Journal of Modern Optics 51: 1731 - 1737, 2004
         Abstract
          e-Print Archive: cond-mat/0311659 [Abstract, Full Text, PDF, Other Formats]

    • Long range nature of Feshbach molecules in Bose-Einstein condensates
      By T. Köhler (1), T. Gasenzer, P. Julienne (2), and K. Burnett (1),
          (1:University of Oxford, UK; 2:NIST, Gaithersburg), Feb 2003. 5 pages RevTeX, 3 figures.
      Published in Phys. Rev. Lett. 91: 230401, 2003
         Abstract   Full Text: [  PDF (144 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0302082 [Abstract, Full Text, PDF, Other Formats]

    • Microscopic theory of atom-molecule oscillations in a Bose-Einstein condensate
      By T. Köhler, T. Gasenzer, and K. Burnett,
          University of Oxford, UK, Sep 2002. 18 pages RevTeX, 20 figures.
      Published in Phys. Rev. A 67: 013601, 2003
         Abstract   Full Text: [  PDF (362 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0209100 [Abstract, Full Text, PDF, Other Formats]

    • Pulsed Raman output coupler for an atom laser
      By J. Ruostekoski (1), T. Gasenzer, and D.A.W. Hutchinson (2),
          (1:University of Hertfortshire, UK; 2:University of Otago, NZ), Jul 2002. 4 pages RevTeX, 4 figures.
      Published in Phys. Rev. A 68: 011604(R), 2003
         Abstract   Full Text: [  PDF (72 kB)  GZipped PS   ]
          e-Print Archive: cond-mat/0307585 [Abstract, Full Text, PDF, Other Formats]

    • Limitations of squeezing due to collisional decoherence in Bose-Einstein condensates
      By T. Gasenzer,
          University of Oxford, UK, Feb 2002. 17 pages RevTeX, 3 figures.
      Published in J. Phys. B: At. Mol. Opt. Phys. 35: 2337-2356, 2002
         Abstract   Full Text: [  PDF (210 kB)  GZipped PS (241 kB) ],    References 
          e-Print Archive: quant-ph/0202012 [Abstract, Full Text, PDF, Other Formats]

    • Limitations of light delay and storage times in electromagnetically induced transparency experiments with condensates
      By D.C. Roberts, T. Gasenzer, and K. Burnett,
          University of Oxford, UK, Jan 2002. 4 pages RevTeX, 4 figures.
      Published in Phys. Rev. A 66: 023801, 2002
         Abstract   Full Text: [  PDF (65 kB)  GZipped PS   ]
          e-Print Archive: quant-ph/0201062 [Abstract, Full Text, PDF, Other Formats]

    • Exciting squeezed particles from condensates using Bragg scattering
      By D.C. Roberts, T. Gasenzer, and K. Burnett,
          University of Oxford, UK, Feb 2002. 5 pages, 2 figures.
      Published in J. Phys. B: At. Mol. Opt. Phys. 35: L113-L118, 2002
         Abstract   Full Text: [  PDF (99.7 kB)  GZipped PS (103 kB) ],    References 
          e-Print Archive: quant-ph/0106060 [Abstract, Full Text, PDF, Other Formats]

    • Limitations of entanglement between photons and atoms coupled out from a Bose-Einstein condensate
      By T. Gasenzer, D.C. Roberts, and K. Burnett,
          University of Oxford, UK, Jun 2001. 4 pages RevTeX, 3 figures.
      Published in Phys. Rev. A 65: 021605(R), 2002
         Abstract   Full Text: [  PDF (72 kB)  GZipped PS   ]
          e-Print Archive: quant-ph/0106005 [Abstract, Full Text, PDF, Other Formats]

    Parity violation in atoms

    • Metastable states of hydrogen: their geometric phases and flux densities
      By Thomas Gasenzer, Otto Nachtmann, and Martin-I. Trappe,
          University of Heidelberg, Germany, Aug 2011. 28 pages, 12 figures.
          arXiv:1107.6006 [physics.atom-ph] [Abstract, Full Text, PDF, Other Formats]

    • Parity Violation in Hydrogen and Longitudinal Atomic Beam Spin Echo I
      By Timo Bergmann, Thomas Gasenzer, Maarten DeKieviet, Otto Nachtmann, and Martin-I. Trappe,
          University of Heidelberg, Germany, March 2008. 27 pages, 10 figures.
      Published in Eur. Phys. Journ. D 54: 551-574 (2009).
         [Abstract] | [Full text] (PDF 564 kB)
          arXiv:0811.1460 [physics.atom-ph] [Abstract, Full Text, PDF, Other Formats]

    • Metastable states, the adiabatic theorem and parity violating geometric phases II
      By Timo Bergmann, Thomas Gasenzer, and Otto Nachtmann,
          University of Heidelberg, Germany, March 2007. 63 pages, 8 figures, 10 tables.
      Published in Eur. Phys. Journ. D 45: 211-227 (2007).
         [Abstract] | [Full text] (PDF 742 kB)
          e-Print Archive: physics/0703276 [Abstract, Full Text, PDF, Other Formats]

    • Metastable states, the adiabatic theorem and parity violating geometric phases I
      By Timo Bergmann, Thomas Gasenzer, and Otto Nachtmann,
          University of Heidelberg, Germany, March 2007. 30 pages.
      Published in Eur. Phys. Journ. D 45: 197-210 (2007).
         [Abstract] | [Full text] (PDF 211 kB)
          e-Print Archive: physics/0703275 [Abstract, Full Text, PDF, Other Formats]

    • Large parity violating effects in atomic dysprosium with nearly degenerate Floquet eigenvalues
      By T. Gasenzer and O. Nachtmann,
          Univ. Heidelberg, Germany, HD-THEP-99-21, Sep 1999. 29pp.
      Published in Eur. Phys. Journ. D 12: 95-110, 2000
         [Abstract] | [Full text] (PDF 349 kB) | [References]
          e-Print Archive: hep-ph/9909358
      References | Keywords
      Abstract and PDF from Los Alamos (or from France or Italy or U.K.)

    • Parity violating energy shifts in atoms, I
      By D. Bruß, T. Gasenzer, and O. Nachtmann,
          Univ. Heidelberg, Germany, HD-THEP-97-36, Feb 1998. 71pp.
      Published in Eur. Phys. Journ. direct D 2: 1-73, 1999
         [Abstract] | [Full text] (PDF 815798 bytes)
      e-Print Archive: hep-ph/9802317
      References | Keywords
      Abstract and PDF from Los Alamos (or from France or Italy or U.K.)

    • New observables for parity violation in atoms: Energy shifts in external electric fields
      By D. Bruß, T. Gasenzer, and O. Nachtmann,
          Univ. Heidelberg, Germany, HD-THEP-97-52, Oct 1997. 8pp.
      Published in Phys. Lett. A 239: 81-86, 1998
         [Abstract] | [Full text] (PDF 115407 bytes)
      e-Print Archive: hep-ph/9710461
      References | Keywords
      Abstract and PDF from Los Alamos (or from France or Italy or U.K.)

    Hamiltonian quantum field theory

    Physics Education

    • A computer controlled pendulum with position readout
      By H. Hauptfleisch, T. Gasenzer, K. Meier, O. Nachtmann, and J. Schemmel,
          University of Heidelberg, Germany, May 2009. 9 pages, 9 figures.
      Published in Am. J. Phys. 78: 555-561 (2010).
         [Abstract] | [Full text] (PDF 2.2 MB)
          arXiv:0905.2015 [physics.ed-ph] [Abstract, Full Text, PDF, Other Formats]

Conference proceedings

Theses

  • Habilitationsschrift:
    
     Pair correlations in Bose-Einstein condensates - from Squeezing to Molecules
    By Thomas Gasenzer,
        Univ. Heidelberg, HD-THEP-04-40, September 2004. 218 pp.
    [Postscript, gzipped, 2.6 MB] | [PDF, 3.0 MB]
    
    
    
    
  • Doctoral Thesis:
    
     Paritätsverletzende Energieverschiebungen und Berry-Phasen in Atomen
    By Thomas Gasenzer,
        Univ. Heidelberg, HD-THEP-98-17, July 1998. 163 pp.
    [Postscript, gzipped, 676 kB] | [PDF, 1.3 MB] (in German)
    
    
    A summary of the subject of my doctoral thesis can be found 
     here.
    
    
    
    
    
  • Diploma Thesis:
    
     Das Gaußsche effektive Potential für skalare Feldtheorien und für das Higgs-Modell;
    By Thomas Gasenzer,
        Univ. Heidelberg, Diplomarbeit Nr. 2858, Oct 1994. 109 pp.