The Cost of Erasing Information

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Title The Cost of Erasing Information
Author Vaccaro, Joan Alfina; Barnett, S.M.
Publication Title AIP Conference Proceedings
Editor Alexander Lvovsky
Year Published 2009
Place of publication Melville, New York
Publisher American Institute of Physics
Abstract Landauer has argued that the process of erasing 1 bit of information requires a minimum amount of work equal to kT ln(2) where T is the temperature of a thermal reservoir that consumes the entropy of the bit. We show that, in principle, the thermal reservoir can be replaced by a reservoir of N spin-1/2 particles which is subject to the conservation of spin angular momentum. The cost of erasing 1 bit of information in this case is found to be in terms of the z component of spin angular momentum.
Peer Reviewed No
Published Yes
Publisher URI http://pra.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevA.77.032114
Copyright Statement Copyright 2009 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.
ISBN 978-0-7354-0647-6
Conference name Ninth International Conference on Quantum Communication, Measurement and Computing (QCMC)
Location Calgary, Canada
Date From 2009-08-19
Date To 2009-08-24
URI http://hdl.handle.net/10072/27314
Date Accessioned 2009-07-13
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Quantum Information, Computation and Communication
Publication Type Conference Publications (Full Written Paper - Non-Refereed)
Publication Type Code e2

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