Tradeoff between extractable mechanical work, accessible entanglement, and ability to act as a reference system, under arbitrary superselection rules

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Title Tradeoff between extractable mechanical work, accessible entanglement, and ability to act as a reference system, under arbitrary superselection rules
Author Vaccaro, Joan Alfina; Anselmi, F.; Wiseman, Howard Mark; Jacobs, Kurt Aaron
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Year Published 2008
Place of publication Ridge, NY
Publisher American Physical Society
Abstract Superselection rules (SSRs) limit the mechanical and quantum processing resources represented by quantum states. However, SSRs can be violated using reference systems to break the underlying symmetry. We show that there is a duality between the ability of a system to do mechanical work and to act as a reference system. Further, for a bipartite system in a globally symmetric pure state, we find a triality between the system's ability to do local mechanical work, its ability to do “logical work” due to its accessible entanglement, and its ability to act as a shared reference system.
Peer Reviewed Yes
Published Yes
Publisher URI http://pra.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevA.77.032114
Copyright Statement Copyright 2008 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.
Volume 77
Page from 032114-1
Page to 032114-12
ISSN 1050-2947
Date Accessioned 2008-06-10
Date Available 2009-02-13T06:59:05Z
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Theoretical Physics
URI http://hdl.handle.net/10072/21275
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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