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Guaranteed energy-efficient bit reset in finite time.

Abstract:

Landauer's principle states that it costs at least kBTln2 of work to reset one bit in the presence of a heat bath at temperature T. The bound of kBTln2 is achieved in the unphysical infinite-time limit. Here we ask what is possible if one is restricted to finite-time protocols. We prove analytically that it is possible to reset a bit with a work cost close to kBTln2 in a finite time. We construct an explicit protocol that achieves this, which involves thermalizing and changing the system's Ha...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics
Role:
Author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Role:
Author
Journal:
Physical review letters
Volume:
113
Issue:
10
Pages:
100603
Publication date:
2014-09-04
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:d923c49b-4dc1-4d3b-9991-f37039786927
Source identifiers:
483679
Local pid:
pubs:483679
Language:
English

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