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论文类型：期刊论文

发表时间：2020-05-01

发表刊物：CHINESE PHYSICS B

收录刊物：SCIE

卷号：29

期号：5

ISSN号：1674-1056

关键字：quantum speed limit; Wigner function; phase space; Margolus-Levitin bound

摘要：The classical version of Mandelstam-Tamm speed limit based on the Wigner function in phase space was reported by Shanahan et al. [Phys. Rev. Lett. 120 070401 (2018)]. We present the Margolus-Levitin speed limit across the quantum-to-classical transition in phase space based on the trace distance. The Margolus-Levitin speed limit is set by the Schatten L-1 norm of the generator of time-dependent evolution for both the quantum and classical domains. As an example, the time-dependent harmonic oscillator is considered to illustrate the result.