Deciding unitary equivalence between matrix polynomials and sets of bipartite quantum states. Chitambar, E., Miller, C., & Shi, Y. Quantum Information and Computation, 2011.
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In this brief report, we consider the equivalence between two sets of m + 1 bipartite quantum states under local unitary transformations. For pure states, this problem corresponds to the matrix algebra question of whether two degree m matrix polynomials are unitarily equivalent; i.e. UAiV† = Bi for 0 < i < m where U and V are unitary and (Ai, Bi) are arbitrary pairs of rectangular matrices. We present a randomized polynomial-time algorithm that solves this problem with an arbitrarily high success probability and outputs transforming matrices U and V. © Rinton Press.
@article{
 title = {Deciding unitary equivalence between matrix polynomials and sets of bipartite quantum states},
 type = {article},
 year = {2011},
 keywords = {H zbinden,Matrix polynomials,Schwartz-zippel lemma communicated by: S braunstei,Unitary transformations},
 volume = {11},
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 abstract = {In this brief report, we consider the equivalence between two sets of m + 1 bipartite quantum states under local unitary transformations. For pure states, this problem corresponds to the matrix algebra question of whether two degree m matrix polynomials are unitarily equivalent; i.e. UAiV† = Bi for 0 < i < m where U and V are unitary and (Ai, Bi) are arbitrary pairs of rectangular matrices. We present a randomized polynomial-time algorithm that solves this problem with an arbitrarily high success probability and outputs transforming matrices U and V. © Rinton Press.},
 bibtype = {article},
 author = {Chitambar, E. and Miller, C.A. and Shi, Y.},
 journal = {Quantum Information and Computation},
 number = {9-10}
}

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