Niklas Teichmann
Niklas Teichmann
Dr. rer. nat. Niklas Teichmann
Address
Condensed Matter Theory Group
Institut für Physik
Carl von Ossietzky Universität
D-26111 Oldenburg
phone | +49 441 798 3994 |
fax | +49 441 798 3080 |
teichmann@theorie.physik.uni-oldenburg.de | |
room | W2 2-270 |
Fields of Research
- Bose-Einstein condensation
- Mesoscopic entanglement generation
- High-order perturbation theory for correlated Boson systems
Publications
- 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).
Talks
- 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
Diploma Thesis
- Bose-Einstein-Kondensate in einer Doppelmulde: Kontrolle und Verschränkung
(Oldenburg, February 2007, supervisor: Professor Dr. M. Holthaus)
Teaching
- Tutorial Festkörperphysik (Winter 2007)
- Tutorial Vorkurs Mathematik (Winter 2006)
- Tutorial Thermodynmik & Statistik (Summer 2006)
Links
- Was sie schon immer über Physik wissen wollten ... Main page , my article
- Article in the NWZ newspaper about a publication with Christoph Weiss.