Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6239
Title: Physical transformations between quantum states
Authors: Huang, Z
Li, CK
Poon, E
Sze, NS 
Issue Date: Oct-2012
Source: Journal of mathematical physics, Oct. 2011, v. 53, no. 10, 102209, p. 1-12
Abstract: Given two sets of quantum states {A₁, …, A[sub k]} and {B₁, …, B[sub k]}, represented as sets as density matrices, necessary and sufficient conditions are obtained for the existence of a physical transformation T, represented as a trace-preserving completely positive map, such that T(A[sub i]) = B [sub i] for i = 1, …, k. General completely positive maps without the trace-preserving requirement, and unital completely positive maps transforming the states are also considered
Keywords: Quantum theory
Publisher: American Institute of Physics
Journal: Journal of mathematical physics 
ISSN: 0022-2488 (print)
1089-7658 (online)
DOI: 10.1063/1.4755846
Rights: © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Z. Huang et al., J. Math. Phys., 53, 102209 (2012) and may be found at http://link.aip.org/link/?jmp/53/102209
Appears in Collections:Journal/Magazine Article

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