Self trapping of a dipolar Bose-Einstein condensate in a double well

Abstract

We study the Josephson oscillation and self trapping dynamics of a cigar-shaped dipolar Bose-Einstein condensate of ${}^{52}$Cr atoms polarized along the symmetry axis of an axially-symmetric double-well potential using the numerical solution of a mean-field model, for dominating repulsive contact interaction (large positive scattering length a) over an anisotropic dipolar interaction. Josephson-type oscillation emerges for small and very large number of atoms, whereas self trapping is noted for an intermediate number of atoms. The dipolar interaction pushes the system away from self trapping towards Josephson oscillation. We consider a simple two-mode description for a qualitative understanding of the dynamics.

References in corpus (51)

• Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
• The physics of dipolar bosonic quantum gases
• Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
• Realization of Bose-Einstein condensates in lower dimensions
• A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
• Bose-Einstein Condensation of Erbium
• Effective wave-equations for the dynamics of cigar-shaped and disc-shaped Bose condensates
• Roton-maxon spectrum and stability of trapped dipolar condensates
• Stabilizing a purely dipolar quantum gas against collapse
• Fortran programs for the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap
• d-wave collapse and explosion of a dipolar Bose-Einstein condensate
• Quantum Phases of Cold Polar Molecules in 2D Optical Lattices
• Radial and angular rotons in trapped dipolar gases
• Anisotropic solitons in dipolar Bose-Einstein Condensates
• Ground state and elementary excitations of single and binary Bose-Einstein condensates of trapped dipolar gases
• C programs for solving the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap
• Dipolar gases in quasi one-dimensional geometries
• Manifestations of the Roton Mode in Dipolar Bose-Einstein Condensates
• Bose-Einstein condensation dynamics from the numerical solution of the Gross-Pitaevskii equation
• Ground-state properties of few dipolar bosons in a quasi-one-dimensional harmonic trap
• Josephson Oscillation and Transition to Self-Trapping for Bose-Einstein-Condensates in a Triple-Well Trap
• Quantum Entanglement Manifestation of Transition to Nonlinear Self-trapping for Bose-Einstein Condensates in a Symmetric Double-Well
• Mean-field regime of trapped dipolar Bose-Einstein condensates in one and two dimensions
• Symmetry Breaking and Self-trapping of a Dipolar Bose-Einstein Condensate in a Double-well Potential
• Structure formation during the collapse of a dipolar atomic Bose-Einstein condensate
• Instabilities and the roton spectrum of a quasi-1D Bose-Einstein condensed gas with dipole-dipole interactions
• Vortices in dipolar condensates with dominant dipolar interactions
• Josephson Effect in BEC with Spin Degree of Freedom
• Critical superfluid velocity in a trapped dipolar gas
• Dipolar Bose-Einstein Condensates with Weak Disorder
• Self-trapping of a Fermi super-fluid in a double-well potential in the BEC-unitarity crossover
• Dynamical Instability of a Rotating Dipolar Bose-Einstein Condensate
• A dipolar self-induced bosonic Josephson junction
• Dynamics of quasi-one-dimensional bright and vortex solitons of a dipolar Bose-Einstein condensate with repulsive atomic interaction
• Phase-slippage and self-trapping in a self-induced bosonic Josephson junction
• Numerical and variational solutions of the dipolar Gross-Pitaevskii equation in reduced dimensions
• Adiabatic Splitting, Transport, and Self-Trapping of a Bose-Einstein Condensate in a Double-Well Potential
• Tunneling, self-trapping and manipulation of higher modes of a BEC in a double well
• Bose-Einstein condensates in toroidal traps: instabilities, swallow-tail loops, and self-trapping
• Mixing, demixing, and structure formation in a binary dipolar Bose-Einstein condensate
• Vortex dynamics of rotating dipolar Bose-Einstein condensates
• Dynamics of gap solitons in a dipolar Bose-Einstein condensate on a three-dimensional optical lattice
• Time-dependent self-trapping of Bose-Einstein Condensates in a double-well potential
• Two-dimensional dipolar Bose-Einstein condensate bright and vortex solitons on one-dimensional optical lattice
• Dipolar Bose-Einstein condensate soliton on a two-dimensional optical lattice
• Anisotropic sound and shock waves in dipolar Bose-Einstein condensate
• Fisher information manifestation of dynamical stability and transition to self-trapping for Bose-Einstein condensates
• Modification of roton instability due to the presence of a second dipolar Bose-Einstein condensate
• Effective dipole-dipole interactions in multilayered dipolar Bose-Einstein condensates
• Self-bound many-body states of quasi-one-dimensional dipolar Fermi gases: Exploiting Bose-Fermi mappings for generalized contact interactions
• Strong-coupling dynamics of Bose-Einstein condensate in a double-well trap

Cited by in corpus (9)

• OpenMP Fortran and C programs for solving the time-dependent Gross-Pitaevskii equation in an anisotropic trap
• Exact dynamics of two ultra-cold bosons confined in a one-dimensional double-well potential
• Effective two-mode description of a few ultra-cold bosons in a double-well potential
• Interaction-modulated tunneling dynamics in a mixture of Bose-Einstein condensates
• Hyperchaos in a Bose-Hubbard chain with Rydberg-dressed interactions
• The effects of trap-confinement and interatomic interactions on Josephson effects and macroscopic quantum self-trapping for a Bose-Einstein Condensate
• Dynamic instabilities and turbulence of merged rotating Bose-Einstein condensates
• Quantum action of the Josephson dynamics
• Electric-Field Control of Josephson Oscillations in Dipolar Bose-Einstein Condensates