arXiv:quant-ph/0503140 Abstract

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Relations between cloning and the universal NOT from conservation laws

Published 2005-03-15, updated 2005-06-27Version 2

We discuss certain relations between cloning and the NOT operation that can be derived from conservation laws alone. Those relations link the limitations on cloning and the NOT operation possibly imposed by {\em other} laws of Nature. Our result is quite general and holds both in classical and quantum-mechanical worlds, for both optimal and suboptimal operations, and for bosons as well as fermions.

Comments: 3 pages, almost equal to published version

Journal: Phys Rev Lett 95, 010502 (2005)

DOI: 10.1103/PhysRevLett.95.010502

Categories: quant-ph

Keywords: conservation laws, relations link, quite general, suboptimal operations, quantum-mechanical worlds

Tags: journal article

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