Dr. rer. nat. Niklas Teichmann

Address

Condensed Matter Theory Group
Institut für Physik
Carl von Ossietzky Universität
D-26111 Oldenburg

• Bose-Einstein condensation
• Mesoscopic entanglement generation
• High-order perturbation theory for correlated Boson systems

• N. Teichmann, D. Hinrichs and M. Holthaus:
  Reference data for phase diagrams of triangular and hexagonal bosonic lattices ,
  EPL (Europhysics Letters) 91, 10004 (2010) (arXiv:1007.0685)
• B. Gertjerenken, S. Arlinghaus, N. Teichmann, C. Weiss:
  Reproducible mesoscopic superpositions of Bose-Einstein condensates and mean-field chaos ,
  accepted for publication in PRA (arXiv:1008.0314)
• N. Teichmann and D. Hinrichs:
  Scaling property of the critical hopping parameters for the Bose-Hubbard model ,
  Eur. Phys. J. B 71, 219 (2009) (arXiv:0909.3209)
• N. Teichmann, M. Esmann and C. Weiss:
  Fractional photon-assisted tunneling for Bose-Einstein condensates
  in a double well,
  Phys. Rev. A 79, 063620 (2009). (arXiv:0905.2838)
• N. Teichmann, D. Hinrichs, M. Holthaus and A. Eckardt:
  Process-chain approach to the Bose-Hubbard model:
  Ground-state properties and phase diagram ,
  Phys. Rev. B 79, 224515 (2009). (arXiv:0904.0905)
  Also selected editorially for publication in the July 2009 issue of the Virtual Journal of Atomic Quantum Fluids.
• N. Teichmann, D. Hinrichs, M. Holthaus and A. Eckardt:
  Bose-Hubbard phase diagram with arbitrary integer filling,
  Phys. Rev. B 79, 100503(R) (2009). (arXiv:0811.1136)
  Also selected editorially for publication in the March 15, 2009 issue of the Virtual Journal of Applications of Superconductivity.
• C. Weiss and N. Teichmann:
  Bose-Einstein condensates in a double well: mean-field chaos and multi-particle entanglement
  Laser Physics 19, 673 (2009)
• C. Weiss and N. Teichmann:
  Signatures of chaos-induced mesoscopic entanglement,
  J. Phys. B: At. Mol. Opt. Phys. 42, (2009) 031001.
  Also highlighted in Europhysics News 40/2.
• C. Weiss and N. Teichmann:
  Differences between mean-field dynamics and N-particle quantum dynamics as a signature of entanglement,
  Phys. Rev. Lett. 100, 140408 (2008). (arXiv:0805.0531)
  Also selected editorially for publication in the April 21, 2008 issue of Virtual Journal of Nanoscale Science & Technology and for the April 2008 issue of Virtual Journal of Quantum Information.
• C. Weiss and N. Teichmann:
  Generation of mesoscopic superpositions of a binary Bose-Einstein condensate in a slightly asymmetric double well,
  Laser Phys. Lett. 4, 895 (2007). (arXiv:0707.4061)
• N. Teichmann and C. Weiss:
  Coherently controlled entanglement generation in a binary Bose-Einstein condensate,
  EPL 78, 10009 (2007). (arXiv:cond-mat/0702241)
  Also selected editorially for the EPL compilations on Bose Einstein condensates & ultracold gases and thus freely accessible until the end of 2008.
• N. Teichmann, C. Weiss, and M. Holthaus:
  From Many-Body Interaction to Nonlinearity, in: proceedings of the 6th International Summer School and Conference "Let's Face Chaos through Nonlinear Dynamics", Maribor, 2005.
  Nonlinear Phenomena in Complex Systems 9, 254 (2006).

• Process-chain approach to the Bose-Hubbard model
  Spring meeting of the German Physical Society, Hanover
  March 2010
• High-order perturbation theory for the Bose-Hubbard model
  Theoretical seminar, Adam Mickiewicz University, Poznan
  October 2009
• Störungsrechnung in hohen Ordnungen für das Bose-Hubbard Modell
  Kolloquium Theoretische Physik, Universität Oldenburg
  April 2009
• Bose-Hubbard phase diagram with arbitrary integer filling
  Spring meeting of the German Physical Society, Hamburg
  March 2009
• Differences of Mean Field and N-Particle Dynamics as a Signature of Entanglement
  Spring meeting of the German Physical Society, Darmstadt
  March 2008
• From Many Body Interaction to Nonlinearity
  Spring meeting of the German Physical Society, Düsseldorf
  March 2007

• Bose-Einstein-Kondensate in einer Doppelmulde: Kontrolle und Verschränkung
  (Oldenburg, February 2007, supervisor: Professor Dr. M. Holthaus)

• Tutorial Festkörperphysik (Winter 2007)
• Tutorial Vorkurs Mathematik (Winter 2006)
• Tutorial Thermodynmik & Statistik (Summer 2006)

• Was sie schon immer über Physik wissen wollten ... Main page , my article
• Article in the NWZ newspaper about a publication with Christoph Weiss.