Work

Minimal Energy Cost for Thermodynamic Information Processing: Measurement and Information Erasure

Year: 2009

Type: article

Abstract: The fundamental lower bounds on the thermodynamic energy cost of measurement and information erasure are determined. The lower bound on the erasure validates Landauer's principle for a symmetric memory; for other cases, the bound indicates the breakdown of the principle. Our results constitute the second law of "information thermodynamics," in which information content and thermodynamic variables are treated on an equal footing.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.102.250602

Authors: Takahiro Sagawa, Masahito Ueda

Institutions: The University of Tokyo, Japan Science and Technology Agency

Language: English

Topic: Advanced Thermodynamics and Statistical Mechanics

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science

Award: Study on superfluidity of atomic gases with internal degrees of freedom.