Double universality of a quantum phase transition in spinor condensates: the Kibble-Żurek mechanism and a conservation law

Abstract

We consider a phase transition from antiferromagnetic to phase separated ground state in a spin-1 Bose-Einstein condensate of ultracold atoms. We demonstrate the occurrence of two scaling laws, for the number of spin fluctuations just after the phase transition, and for the number of spin domains in the final, stable configuration. Only the first scaling can be explained by the standard Kibble-Żurek mechanism. We explain the occurrence of two scaling laws by a model including post-selection of spin domains due to the conservation of condensate magnetization.

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• Kibble-Zurek Dynamics in a Trapped Ultracold Bose Gas
• Emergence and scaling of spin turbulence in quenched antiferromagnetic spinor Bose-Einstein condensates
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• 3D quaternionic condensations, Hopf invariants, and skyrmion lattices with synthetic spin-orbit coupling
• Flemish Strings of Magnetic Solitons and a Non-Thermal Fixed Point in a One-Dimensional Antiferromagnetic Spin-1 Bose Gas
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• Kibble-Zurek mechanism in a one-dimensional incarnation of deconfined quantum critical point
• Dynamics of the modified Kibble-Żurek mechanism in antiferromagnetic spin-1 condensates
• Universality of miscible-immiscible phase separation dynamics in two-component Bose-Einstein condensates
• Classical field records of a quantum system: their internal consistency and accuracy
• Classical fields in the one-dimensional Bose gas: applicability and determination of the optimal cutoff
• Thermal fluctuations and quantum phase transition in antiferromagnetic Bose-Einstein condensates
• Kibble-Zurek dynamics in an array of coupled binary Bose condensates
• Universal dynamics of superradiant phase transition in the anisotropic quantum Rabi model
• Metrologically useful states of spin-1 Bose condensates with macroscopic magnetization
• Complex wave fields in the interacting one-dimensional Bose gas
• A Non-Equilibrium Kinetic Theory for Trapped Binary Condensates
• Dynamics of a Nonequilibrium Discontinuous Quantum Phase Transition in a Spinor Bose-Einstein Condensate
• Non-adiabatic quantum phase transition in a trapped spinor condensate
• Spontaneous PT symmetry breaking of a ferromagnetic superfluid in a gradient field
• Dynamic hysteresis from bistability in an antiferromagnetic spinor condensate
• Multifaceted phase ordering kinetics of an antiferromagnetic spin-1 condensate
• Universality in nonlinear passage through the miscible-immiscible phase transition in two component Bose-Einstein condensates
• Optimized adiabatic-impulse protocol preserving Kibble-Zurek scaling with attenuated anti-Kibble-Zurek behavior