Entanglement-assisted transformation is asymptotically equivalent to multiple-copy transformation
- Publication Type:
- Journal Article
- Physical Review A - Atomic, Molecular, and Optical Physics, 2005, 72 (2)
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We show that two ways of manipulating quantum entanglement-namely, entanglement-assisted local transformation [D. Jonathan and M. B. Plenio, Phys. Rev. Lett. 83, 3566 (1999)] and multiple-copy transformation [S. Bandyopadhyay, V. Roychowdhury, and U. Sen, Phys. Rev. A 65, 052315 (2002)]-are equivalent in the sense that they can asymptotically simulate each other's ability to implement a desired transformation from a given source state to another given target state with the same optimal success probability. As a consequence, this yields a feasible method to evaluate the optimal conversion probability of an entanglement-assisted transformation. © 2005 The American Physical Society.
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