Accession Number : AD1051260


Title :   Direct Thermodynamic Measurements of the Energetics of Information Processing


Descriptive Note : Technical Report,15 Aug 2015,16 Feb 2017


Corporate Author : California Institute of Technology Pasadena United States


Personal Author(s) : Roukes, Michael L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1051260.pdf


Report Date : 08 Aug 2017


Pagination or Media Count : 13


Abstract : The relation between thermodynamic processes out of equilibrium and information processing has been under intense investigation in the last few years. In part, this interest has been driven by the emergence of fluctuation theories (FTs) [1, 2]. It is widely assumed from various thought experiments that informational processes that do not preserve bit number (i.e., non-reversible computation) must have thermodynamic repercussions [3]. The most basic of these, first stated by Landauer, is formulated for binary logic systems; specifically, on average, erasure of each bit is accompanied by dissipation of energy. This dissipation should be manifested as additional heat transferred to the environmental bath into which the bit thermalizes. However, no measurement has ever been made of this heat. This project focuses upon the pursuit of such a measurement.


Descriptors :   nanoelectromechanical systems , measurement , low temperature , information processing , thermodynamic processes , resonant frequency , radiation , calorimeters , amplifiers , dilution , dissipation , electrons


Subject Categories : Thermodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE