The Consumption of Reference Resources

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Author(s)
White, GA
Vaccaro, JA
Wiseman, HM
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Lvovksy, A

Date
2009
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157630 bytes

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Calgary, CANADA

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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.

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QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC)

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1110

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© 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.

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Quantum information, computation and communication

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