Unextendible maximally entangled bases in ${\mathbb{C}}^d⨂{\mathbb{C}}^{d^{\prime }}$

Abstract

We solved the unextendible maximally entangled basis (UMEB) problem in ${\mathbb{C}}^d⨂{\mathbb{C}}^{d^{\prime }}(d\ne d^{\prime })$,the results turn out to be that there always exist a UMEB.In addition,there might be two sets of UMEB with different numbers.The main difficult is to prove the unextendibility of the set of states.We give an explicit construction of UMEB by considering the Schmidt number of the complementary space of the states we construct.

4 pages,Physical Review A, June, 2014

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• Quantum entanglement
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• Unextendible Product Bases and Bound Entanglement
• Unextendible Product Bases, Uncompletable Product Bases and Bound Entanglement
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• Unextendible maximally entangled bases and mutually unbiased bases in multipartite systems
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• Mutually-orthogonal unitary and orthogonal matrices