Non-equilibrium dynamics in spin-1 condensate

Liyuan Qiu, Institute for Interdisciplinary Information Sciences, Tsinghua University

In this talk, I will introduce three non-equilibrium dynamics experiments in the anti-ferromagnetic spin-1 sodium condensate, including one experiment about the Kibble-Zurek mechanism in the first-order quantum phase transition and two experiments about Dynamical Quantum Phase Transitions.

In the Kibble-Zurek mechanism, we find out that not only the ground state matters in quantum phase transition but also the high excited states matter.

For the Dynamical Quantum Phase Transition experiments, there is not only the transition that exists in the equilibrium state but also that doesn't exist in the equilibrium state.

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