Thermalization in a quantum harmonic oscillator with random disorder

Ya Wei Hsueh, Che Hsiu Hsueh, Wen Chin Wu

研究成果: 雜誌貢獻文章

摘要

We propose a possible scheme to study the thermalization in a quantum harmonic oscillator with random disorder. Our numerical simulation shows that through the effect of random disorder, the system can undergo a transition from an initial nonequilibrium state to a equilibrium state. Unlike the classical damped harmonic oscillator where total energy is dissipated, total energy of the disordered quantum harmonic oscillator is conserved. In particular, at equilibrium the initial mechanical energy is transformed to the thermodynamic energy in which kinetic and potential energies are evenly distributed. Shannon entropy in different bases are shown to yield consistent results during the thermalization.

原文英語
文章編號855
期刊Entropy
22
發行號8
DOIs
出版狀態已發佈 - 2020 八月

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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