Dynamical Phase Diagram of Ultracold Josephson Junctions
arXiv:2007.13102 · doi:10.1088/1367-2630/abc8e4
Abstract
We provide a complete study of the phase diagram characterising the distinct dynamical regimes emerging in a three-dimensional Josephson junction in an ultracold quantum gas. Considering trapped ultracold superfluids separated into two reservoirs by a barrier of variable height and width, we analyse the population imbalance dynamics following a variable initial population mismatch. We demonstrate that as the chemical potential difference is increased, the system transitions from Josephson plasma oscillations to either a dissipative (in the limit of low and narrow barriers) or a self-trapped regime (for large and wider barriers), with a crossover between the dissipative and the self-trapping regimes which we explore and characterize for the first time. This work, which extends beyond the validity of the standard two-mode model, connects the role of the barrier width, vortex rings and associated acoustic emission with different regimes of the superfluid dynamics across the junction, establishing a framework for its experimental observation, which is found to be within current experimental reach.
References in corpus (46)
- Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
- Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
- Nonlinear atom interferometer surpasses classical precision limit
- Discrete Solitons and Breathers with Dilute Bose-Einstein Condensates
- Atom chip based generation of entanglement for quantum metrology
- Josephson Junction Arrays with Bose-Einstein Condensates
- Matter-wave interferometry in a double well on an atom chip
- Atom interferometry with Bose-Einstein condensates in a double-well potential
- Classical bifurcation at the transition from Rabi to Josephson dynamics
- Josephson effect between trapped Bose-Einstein condensates
- Experimental realization of Josephson junctions for an Atom SQUID
- Nonlinear Self-Trapping of Matter Waves in Periodic Potentials
- Coherent Oscillations in an Exciton-Polariton Josephson Junction
- Precise characterization of ^6Li Feshbach resonances using trap-sideband resolved RF spectroscopy of weakly bound molecules
- Nonlinear Josephson-type oscillations of a driven, two-component Bose-Einstein condensate
- Noise Thermometry with Two Weakly Coupled Bose-Einstein Condensates
- Josephson junctions with negative second harmonic in the current-phase relation: properties of novel varphi-junctions
- Nonlinear Tight-Binding Approximation for Bose-Einstein Condensates in a Lattice
- Josephson effect in fermionic superfluids across the BEC-BCS crossover
- Dynamics of a tunable superfluid junction
- Resistive flow in a weakly interacting Bose-Einstein condensate
- Atomtronics-enabled Quantum Technologies
- Crossing Over from Attractive to Repulsive Interactions in a Tunneling Bosonic Josephson Junction
- Interferometric measurement of the current-phase relationship of a superfluid weak link
- Direct Energy Cascade in Two-Dimensional Compressible Quantum Turbulence
- Efficient all-optical production of large Li quantum gases using D gray-molasses cooling
- Connecting dissipation and phase slips in a Josephson junction between fermionic superfluids
- Josephson tunneling between weakly interacting Bose-Einstein condensates
- Strongly correlated superfluid order parameters from dc Josephson supercurrents
- An ideal Josephson junction in an ultracold two-dimensional Fermi gas
- Contact resistance and phase slips in mesoscopic superfluid atom transport
- Critical transport and vortex dynamics in a thin atomic Josephson junction
- Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring
- Crossover from interaction to driven regimes in quantum vortex reconnections
- A Vortex Filament Tracking Method for the Gross-Pitaevskii Model of a Superfluid
- Periodic squeezing in a polariton Josephson junction
- Quantitative acoustic models for superfluid circuits
- Critical Josephson current in BCS-BEC crossover superfluids
- Phase-slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
- Josephson junction dynamics in a two-dimensional ultracold Bose gas
- Quantum Dynamics of Coupled Bosonic Wells within the Bose-Hubbard Picture
- Non-linear mixing of Bogoliubov modes in a bosonic Josephson junction
- Finite-temperature dynamics of a bosonic Josephson junction
- Breaking of Josephson junction oscillations and onset of quantum turbulence in Bose--Einstein condensates
- Phonon-Josephson resonances in atomtronic circuits
- Ultra-cold fermions in real or fictitious magnetic fields: The BCS-BEC evolution and the type-I--type-II transition
Cited by in corpus (14)
- Roadmap on Atomtronics: State of the art and perspective
- Nonlinear dynamics in a synthetic momentum state lattice
- Dissipation Mechanisms in Fermionic Josephson Junction
- Quantum dynamics of few dipolar bosons in a double-well potential
- Massive-vortex realization of a Bosonic Josephson Junction
- Dynamical phase diagram of a one dimensional Bose gas in a box with a tunable weak-link: from Bose-Josephson oscillations to shock waves
- Dissipation in a Finite Temperature Atomic Josephson Junction
- Quantum fluctuations in atomic Josephson junctions: the role of dimensionality
- Josephson dynamics and localization revivals in ultradilute quantum liquids
- Sound emission and annihilations in a programmable quantum vortex collider
- Phase diffusion and fluctuations in a dissipative Bose-Josephson junction
- Controlled generation of 3D vortices in driven atomic Josephson junctions
- Vortex dynamics in rotating dipolar supersolids across Josephson and self-trapping regimes
- Bi-Josephson Effect in a Driven-Dissipative Supersolid