Macroscopic Quantum Coherence in a repulsive Bose-Einstein condensate
A. Montina, F. T. Arecchi
Abstract
We consider a Bose-Einstein bicondensate (BEC) of 87Rb, trapped in two different internal levels, in a situation where the density undergoes a symmetry breaking in momentum space. This occurs for a suitable number of condensed atoms within a double well dispersion curve, obtained by Raman coupling two internal states with two tilted and detuned light fields. Evidence of bistability results from the Gross-Pitaevskii equation. By second quantization, we evaluate the tunneling rate between the two asymmetric states; the effects of losses on coherence are also considered.
Create a lesson
Related papers
Analytic two-body density-matrix spectrum of the Fermionic Tonks-Girardeau gas
Abel Rojo-Francàs, Joan Martorell, Francesc Sabater et al.
Coherence Spreading Law in Quenched Homogeneous Bose Gases
Yi Cao, Li-Chen Zhao, Jie Liu
Shapiro spikes in driven quantum fluids
Vijay Pal Singh, Ludwig Mathey, Luigi Amico
Observation of Scaling of Higher-Order Flow in a Unitary Fermi Gas
Shuxian Yu, Zhijie Zhang, Yunyi Zhao et al.
Vortices in a two-dimensional fermionic superfluid
Artak Mkrtchyan, Hans Leonard Michel, Moritz von Usslar et al.
Synchronization in one-dimensional arrays of photon condensates
Klaas Luyckx, Michiel Yzewyn, Michiel Wouters