Nonequilibrium quantum dynamics of atomic dark solitons

Abstract

We study quantum dynamics of bosonic atoms that are excited to form a phase kink, or several kinks, by an imprinting potential in a one-dimensional trap. We calculate dissipation due to quantum and thermal fluctuations in soliton trajectories, collisions and the core structure. Single-shot runs show weak filling of a soliton core, typically deeper solitons in the case of stronger fluctuations and spreading/disappearing solitons due to collisions. We also analyze a soliton system in an optical lattice that shows especially strong fluctuation-induced phenomena.

19 pages, 9 figures, to appear in New Journal of Physics

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Cited by in corpus (37)

• Dark-bright Solitons and their Lattices in Atomic Bose-Einstein Condensates
• A comparison between microscopic methods for finite temperature Bose gases
• Many-body Matter-wave Dark Soliton
• Functional Wigner representation of BEC quantum dynamics
• Nonthermal fixed points and solitons in a one-dimensional Bose gas
• Lieb-Liniger model: emergence of dark solitons in the course of measurements of particle positions
• What is a quantum shock wave?
• Quantum states of dark solitons in the 1D Bose gas
• Exploring Vortex Dynamics in the Presence of Dissipation: Analytical and Numerical Results
• Exploring Rigidly Rotating Vortex Configurations and their Bifurcations in Atomic Bose-Einstein Condensates
• Fluctuating and dissipative dynamics of dark solitons in quasi-condensates
• Flemish Strings of Magnetic Solitons and a Non-Thermal Fixed Point in a One-Dimensional Antiferromagnetic Spin-1 Bose Gas
• Single-shot simulations of dynamics of quantum dark solitons
• Oscillons in coupled Bose-Einstein condensates
• Engineering Dark Solitary waves in Ring-Trap Bose-Einstein condensates
• Quantum dark solitons in ultracold one-dimensional Bose and Fermi gases
• Quantum dark solitons in Bose gas confined in a hard wall box
• Classical field records of a quantum system: their internal consistency and accuracy
• Brownian motion of a matter-wave bright soliton: realizing a quantum pollen grain
• Comment on "Quantum entangled dark solitons formed by ultracold atoms in optical lattices"
• Reply to Comment on "Quantum Entangled Dark Solitons formed by Ultracold Atoms in Optical Lattices"
• Classical fields in the one-dimensional Bose gas: applicability and determination of the optimal cutoff
• On the survival of the quantum depletion of a condensate after release from a magnetic trap
• A tractable prescription for large-scale free flight expansion of wavefunctions
• Biased dynamics of the miscible-immiscible quantum phase transition in a binary Bose-Einstein condensate
• Stochastic-field approach to the quench dynamics of the one-dimensional Bose polaron
• Fragmentation, domain formation and atom number fluctuations of a two-species Bose-Einstein condensate in an optical lattice
• Emergence of dark soliton signatures in a one-dimensional unpolarized attractive Fermi gas on a ring
• Continuous time crystal from a spontaneous many-body Floquet state
• Semiclassical dynamics of a dark soliton in a one-dimensional bosonic superfluid in an optical lattice
• Exact solutions to the four Goldstone modes around a dark soliton of the nonlinear Schroedinger equation
• Measurement of one-dimensional matter-wave quantum breather
• Stochastic longevity of a dark soliton in a finite-temperature Bose-Einstein condensate
• Back-reaction of perturbation wave packets on gray solitons
• Fate of the "vacuum point'' and of grey solitons in dispersive quantum shock waves in a one-dimensional Bose gas
• Influence of quantum fluctuations on the superfluid critical velocity of a one-dimensional Bose gas
• Caustics in the sine-Gordon model from quenches in coupled 1D Bose gases