Dresden 2017 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 43: Nonlinear Dynamics, Synchronizsation and Chaos

DY 43.3: Vortrag

Donnerstag, 23. März 2017, 10:00–10:15, ZEU 118

Spontaneous symmetry-breaking in the Bose-Hubbard model — •Christopher D. B. Bentley¹, Alan Celestino¹, Ramy El-Ganainy^1,2, and Alexander Eisfeld¹ — ¹Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, D-01187 Dresden, Germany — ²Department of Physics and Henes Center for Quantum Phenomena, Michigan Technological University, Houghton, MI 49931, USA

Spontaneous symmetry-breaking has recently been experimentally observed with low photon numbers in a pair of cavities [1], which can be described by the Bose-Hubbard model. This phenomenon is well understood in the classical regime, and different approaches including quantum trajectories have been used to explore the equivalent quantum regime [2,3]. Here we extend the quantum trajectory approach, and present our results on the stability of spontaneous symmetry-breaking trajectories with symmetric Hamiltonian and control.

[1] P. Hamel et al. 2015, Nature Photonics 9, 311 [2] W. Casteels and C. Ciuti 2016, arXiv:1607.02578 [3] B. Cao, K. W. Mahmud and M. Hafezi 2016, arXiv:1608.07766