American Physical Society;United States: American Physical Society (APS)
摘要:
摘要： We confirm Landauer's 1961 hypothesis that reducing the number of possible macroscopic states in a system by a factor of 2 requires work of at least kTln2. Our experiment uses a colloidal particle in a time-dependent, virtual potential created by a feedback trap to implement Landauer's erasure operation. In a control experiment, similar manipulations that do not reduce the number of system states can be done reversibly. Erasing information thus requires work. In individual cycles, the work to erase can be below the Landauer limit, consistent with the Jarzynski equality. 其他題名： Phys Rev Lett 出版者： United States: American Physical Society (APS) 出版日期： 2014-11-07 出處： Physical Review Letters, 2014-11, Vol.113 (19), p.190601, Article 190601 資源來源： American Physical Society Journals 識別號： ISSN: 0031-9007 識別號： ISSN: 1079-7114 識別號： EISSN: 1079-7114 識別號： DOI: 10.1103/physrevlett.113.190601 識別號： PMID: 25415891
