Thermal fluctuations and quantum phase transition in antiferromagnetic Bose-Einstein condensates
arXiv:1505.04006 · doi:10.1103/PhysRevA.90.033604
Abstract
We develop a method for investigating nonequilibrium dynamics of an ultracold system that is initially at thermal equilibrium. Our procedure is based on the classical fields approximation with appropriately prepared initial state. As an application of the method, we investigate the influence of thermal fluctuations on the quantum phase transition from an antiferromagnetic to phase separated ground state in a spin-1 Bose-Einstein condensate of ultracold atoms. We find that at temperatures significantly lower than the critical condensation temperature the scaling law for the number of created spin defects remains intact.
arXiv admin note: text overlap with arXiv:1309.6107
References in corpus (45)
- Nonequilibrium dynamics of closed interacting quantum systems
- Spinor Bose Condensates in Optical Traps
- Relaxation and Pre-thermalization in an Isolated Quantum System
- Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
- Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
- Cosmological Experiments in Condensed Matter Systems
- Dynamics of a Quantum Phase Transition and Relaxation to a Steady State
- Big bang simulation in superfluid 3He-B -- Vortex nucleation in neutron-irradiated superflow
- Spontaneous vortices in the formation of Bose-Einstein condensates
- Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
- Exploring Symmetry Breaking at the Dicke Quantum Phase Transition
- Coherent spinor dynamics in a spin-1 Bose condensate
- Symmetry Breaking and Topological Defect Formation in Ion Coulomb Crystals
- Observation of the Kibble-Zurek scaling law for defect formation in ion crystals
- Spontaneous creation of Kibble-Zurek solitons in a Bose-Einstein condensate
- Spontaneously modulated spin textures in a dipolar spinor Bose-Einstein condensate
- Vortex Formation by Interference of Multiple Trapped Bose-Einstein Condensates
- Coherent spin mixing dynamics in a spin-1 atomic condensate
- Observation of Magnetic Flux Generated Spontaneously During a Rapid Quench of Superconducting Films
- Quantum Quench of an Atomic Mott Insulator
- A classical field method for time dependent Bose condensed gases
- Quantum quenches in a spinor condensate
- Kibble-Zurek mechanism in a quenched ferromagnetic Bose-Einstein condensate
- Dynamics of a quantum phase transition in a ferromagnetic Bose-Einstein condensate
- Phase separation and pattern formation in a binary Bose-Einstein condensate
- Zurek-Kibble Mechanism for the Spontaneous Vortex Formation in Josephson Tunnel Junctions: New Theory and Experiment
- Simulations of thermal Bose fields in the classical limit
- Prethermalization in quenched spinor condensates
- Phase diagram of spin 1 antiferromagnetic Bose-Einstein condensates
- Solitons as the early stage of quasicondensate formation during evaporative cooling
- Thermodynamics of an interacting trapped Bose-Einstein gas in the classical field approximation
- Dynamics of Vortex Formation in Merging Bose-Einstein Condensate Fragments
- Excited spin states and phase separation in spinor Bose-Einstein condensates
- Double universality of a quantum phase transition in spinor condensates: the Kibble-Żurek mechanism and a conservation law
- Mapping the phase diagram of spinor condensates via adiabatic quantum phase transitions
- Stochastic Projected Gross-Pitaevskii equation for spinor and multi-component condensates
- Spin-Domain Formation in Antiferromagnetic Condensates
- Causality and defect formation in the dynamics of an engineered quantum phase transition in a coupled binary Bose-Einstein condensate
- Effects of thermal and quantum fluctuations on the phase diagram of a spin-1 87Rb Bose-Einstein condensate
- Rotonlike instability and pattern formation in spinor Bose-Einstein condensates
- Finite temperature phase diagram of a spin-1 Bose gas
- Kibble-Zurek mechanism in a trapped ferromagnetic Bose-Einstein condensate
- Ground states of trapped spin-1 condensates in magnetic field
- Spinor condensate of Rb as a dipolar gas
- Dynamics of the modified Kibble-Żurek mechanism in antiferromagnetic spin-1 condensates
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- Unconventional Universality Class of One-Dimensional Isolated Coarsening Dynamics in a Spinor Bose Gas
- Collective excitations in cigar-shaped spin-orbit coupled spin-1 Bose-Einstein condensates
- Classical field records of a quantum system: their internal consistency and accuracy
- Domain percolation in a quenched ferromagnetic spinor condensate
- Crossover from weak to strong quench in a spinor Bose-Einstein condensate
- Non-adiabatic quantum phase transition in a trapped spinor condensate
- Dynamic hysteresis from bistability in an antiferromagnetic spinor condensate