On the Josephson effect in a Bose-Einstein condensate subject to a density dependent gauge potential

Abstract

We investigate the coherent dynamics of a Bose-Einstein condensate in a double well, subject to a density dependent gauge potential. Further, we derive the nonlinear Josephson equations that allow us to understand the many-body system in terms of a classical Hamiltonian that describes the motion of a nonrigid pendulum with an initial angular offset. Finally we analyze the phase-space trajectories of the system, and describe how the self-trapping is affected by the presence of an interacting gauge potential.

6 pages, 2 figures

References in corpus (8)

• Matter-wave interferometry in a double well on an atom chip
• A Bose-Einstein Condensate in a Uniform Light-induced Vector Potential
• Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• Simulating an interacting gauge theory with ultracold Bose gases
• Atomic Zitterbewegung
• Bose-Einstein Condensates on slightly asymmetric double-well potentials
• Beyond standard two-mode dynamics in Bosonic Josephson junctions

Cited by in corpus (7)

• Light-induced gauge fields for ultracold atoms
• Observation of density-dependent gauge fields in a Bose-Einstein condensate based on micromotion control in a shaken two-dimensional lattice
• Few-to-many vortex states of density-angular-momentum coupled Bose-Einstein condensates
• Gauge transformations and Galilean covariance in nonlinear gauge-coupled quantum fluids
• Spinor Bose-Einstein condensates subject to current-density interactions
• Excitation spectrum of vortex-lattice modes in a rotating condensate with a density-dependent gauge potential
• Stationary states and quantum quench dynamics of Bose-Einstein condensates in a double-well potential