Jul 17 – 22, 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

Quantum Thermodyanmics in quenched spinor condensates

Not scheduled
1h 30m
Abstract of recent or ongoing work (by remote / virtual participant) Degenerate gases, many-body physics, and quantum simulation Abstracts by remote participants

Description

We present our recent studs contributed to quantum thermalization in an isolated system utilizing spinor condensates[1][2]. 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[2].

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).

References
[1] 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,
February 2018.

[2] 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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Primary authors

Meng-Ju Tsai (Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan) Yu-Hao Yeh (Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan) Xiang-Liang Pan (Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan) Jun-Ho Hsieh (Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan) Ming-Shien Chang (Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan)

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