We present our recent studs contributed to quantum thermalization in an isolated system utilizing spinor condensates. Under the single-mode approximation (SMA), the motional degrees of freedom of spinor condensates are frozen, and all Zeeman components share the same spatial wavefunction. Under such circumstances, the spin dynamics dominates the system's evolution, and the restricted spin degrees of freedom presents a small Hilbert space ideally suited for studying quantum thermalization.
Experimentally, we prepared spinor condensates under the SMA with designed spin compositions in a high magnetic field, and the spin dynamics in low fields with different field ramping speeds were followed. The experiment results were used to test the eigenstate thermalization hypothesis (ETH).
 Ceren B. Da ̆g, Sheng-Tao Wang, and L.-M. Duan. Classification of quench-
dynamical behaviors in spinor condensates. Phys. Rev. A, 97(2):023603,
 Christian Gogolin and Jens Eisert. Equilibration, thermalisation, and the
emergence of statistical mechanics in closed quantum systems. Rep. Prog.
Phys., 79(5):056001, April 2016.
|Presenter name||Meng-Ju, Tsai|
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