Manipulation of an elongated internal Josephson junction of bosonic atoms
arXiv:2101.12643 · doi:10.1103/PhysRevA.104.023326
Abstract
We report on the experimental characterization of a spatially extended Josephson junction realized with a coherently-coupled two-spin-component Bose-Einstein condensate. The cloud is trapped in an elongated potential such that that transverse spin excitations are frozen. We extract the non-linear parameter with three different manipulation protocols. The outcomes are all consistent with a simple local density approximation of the spin hydrodynamics, i.e., of the so-called Bose-Josephson junction equations. We also identify a method to produce states with a well defined uniform magnetization.
arXiv comment8 pages, 4 figures
References in corpus (28)
- Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
- Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
- Shortcuts to adiabaticity: concepts, methods, and applications
- Nonlinear atom interferometer surpasses classical precision limit
- Squeezing and entanglement in a Bose-Einstein condensate
- Classical bifurcation at the transition from Rabi to Josephson dynamics
- Effect of cold collisions on spin coherence and resonance shifts in a magnetically trapped ultra-cold gas
- Quantum state of two trapped Bose-Einstein condensates with a Josephson coupling
- Domain walls of relative phase in two-component Bose-Einstein condensates
- Svortices and the fundamental modes of the "snake instability": Possibility of observation in the gaseous Bose-Einstein Condensate
- Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
- Relaxation to a Phase-locked Equilibrium State in a One-dimensional Bosonic Josephson Junction
- Observation of scaling in the dynamics of a strongly quenched quantum gas
- Crossing Over from Attractive to Repulsive Interactions in a Tunneling Bosonic Josephson Junction
- Magnetic Solitons in a Binary Bose-Einstein Condensate
- Rabi flopping induces spatial demixing dynamics
- Observation of Spin Superfluidity in a Bose Gas Mixture
- Confinement and precession of vortex pairs in coherently coupled Bose-Einstein condensates
- Magnetic solitons in Rabi-coupled Bose-Einstein condensates
- Chladni solitons and the onset of the snaking instability for dark solitons in confined superfluids
- Spin-Dipole Oscillation and Polarizability of a Binary Bose-Einstein Condensate near the Miscible-Immiscible Phase Transition
- Unstable Avoided Crossing in Coupled Spinor Condensates
- Sub-Doppler cooling of sodium atoms in gray molasses
- Design and characterisation of a compact magnetic shield for ultracold atomic gas experiments
- Vortex dynamics in coherently coupled Bose-Einstein condensates
- Nonlinear dressed states at the miscibility-immiscibility threshold
- Production of large Bose-Einstein condensates in a magnetic-shield-compatible hybrid trap
- Dephasing-rephasing dynamics of one-dimensional tunneling quasicondensates
Cited by in corpus (17)
- Observation of Massless and Massive Collective Excitations with Faraday Patterns in a Two-Component Superfluid
- Observation of false vacuum decay via bubble formation in ferromagnetic superfluids
- Nonlinear dynamics in a synthetic momentum state lattice
- Ferromagnetism in an extended coherently-coupled atomic superfluid
- Quantum-torque-induced breaking of magnetic interfaces in ultracold gases
- Rotational pendulum dynamics of a vortex molecule in a channel geometry
- Squeezing oscillations in a multimode bosonic Josephson junction
- Stochastic dynamics of a few sodium atoms in a cold potassium cloud
- Quantum fluctuations in atomic Josephson junctions: the role of dimensionality
- Exciton-polariton ring Josephson junction
- Progress toward a zero-magnetic-field environment for ultracold-atom experiments
- Ultracold atomic spin mixtures in ultrastable magnetic field environments
- Finite temperature ferromagnetic transition in coherently coupled Bose gases
- Universal quantum computation and quantum error correction with ultracold atomic mixtures
- Finite-temperature phase diagram and collective modes of coherently coupled Bose mixtures
- Distributed vorticity model for vortex molecule dynamics
- Temperature driven false vacuum decay in coherently coupled Bose superfluids