Impossibility of Exact Flipping of Three Arbitrary Quantum States Via Incomparability

Details Impossibility of Exact Flipping of Three Arbitrary Quantum States Via Incomparability Impossibility of Exact Flipping of Three Arbitrary Quantum States Via Incomparability

2005-11-04

arxiv.org/abs/quant-ph/0511040v2

Phys. Rev. A 73, 044303 (2006)

Physics

Quantum Physics

9 pages, no figures, replaced with accepted version, Phys. Rev. A

Scientific paper

10.1103/PhysRevA.73.044303

We present here a scheme that relates seemingly two different kinds of physical impossibilities of quantum information processing. We derive, exact flipping of three arbitrary states not lying in one great circle is not possible with certainty, by using the existence of incomparable states which are not interconvertible deterministically by local operations and classical communications. In contrast, considering the non-existence of exact universal flipper, the incomparability of a pair of bipartite pure entangled states can be established.

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