Spin symmetry breaking and entropy production during the evolution of spinor Bose-Einstein condensate driven by coherent atom beam
| Autor: | Zbigniew Domański, Zhibing Li, Zhongda Zeng, Yixin Xu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Quantum Physics Entropy (statistical thermodynamics) Entropy production Spontaneous symmetry breaking Degenerate energy levels Degrees of freedom (physics and chemistry) Time evolution FOS: Physical sciences Quantum entanglement law.invention Quantum Gases (cond-mat.quant-gas) law Quantum mechanics Condensed Matter - Quantum Gases Quantum Physics (quant-ph) Bose–Einstein condensate |
| Zdroj: | Physical Review Research. 2 |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/physrevresearch.2.023028 |
| Popis: | The spinor condensate with spin states degenerated in the ground spin-space provides a unique platform for investigating the edge of quantum mechanics and statistical physics. We study the evolution of the condensate under the scattering of a coherent atom beam. The time-dependent magnetization, entanglement entropy, thermal entropy and the entropy production rate are calculated. A novel spontaneous symmetry breaking is found during the evolution, It is shown that the stationary spin distribution can be controlled by the incoming coherent spin state of the incident atom beam, therefore the atom-condensate scattering provides a new way to probe the spin distribution of the condensate |
| Databáze: | OpenAIRE |
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