The Consumption of Reference Resources

White, GA; Vaccaro, JA; Wiseman, HM

doi:10.1063/1.3131381

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Author(s)

White, GA

Vaccaro, JA

Wiseman, HM

Griffith University Author(s)

Vaccaro, Joan A.

Wiseman, Howard M.

Year published

2009

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Abstract

Under the operational restriction of the U(1)-superselection rule, states that contain coherences between eigenstates of particle number constitute a resource. Such resources can be used to facilitate operations upon systems that otherwise cannot be performed. However, the process of doing this consumes reference resources. We show this explicitly for an example of a unitary operation that is forbidden by the U(1)-superselection rule.Under the operational restriction of the U(1)-superselection rule, states that contain coherences between eigenstates of particle number constitute a resource. Such resources can be used to facilitate operations upon systems that otherwise cannot be performed. However, the process of doing this consumes reference resources. We show this explicitly for an example of a unitary operation that is forbidden by the U(1)-superselection rule.
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Conference Title

QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC)

Volume

1110

Publisher URI

http://pra.aps.org/

DOI

https://doi.org/10.1063/1.3131381

Copyright Statement

© 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.

Subject

Quantum information, computation and communication

Publication URI

http://hdl.handle.net/10072/27286

Collection

Conference outputs