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arXiv · 1302.2212

Entanglement of formation for qubit-qudit system using partition of qudit sytem into a set of qubit system

Wen-Chao Qiang·W. B. Cardoso
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Abstract

Gerjuoy [Phys. Rev. A 67, 052308 (2003)] has derived a closed- form lower bound for the entanglement of formation of a mixed qubit-qudit system (qudit system has d levels with d>=3. In this paper, inspired by Gerjuoy's method, we propose a scheme that partitions a qubit-qudit system into d(d-1)/2 qubit-qubit systems, which can be treated by all known methods pertinent to qubit-qubit system. The method is demonstrated by a qubit-qudit system (The levels of qudit are d=3 and d=5, respectively)

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Wen-Chao Qiang, W. B. Cardoso. 2013-02-09. Entanglement of formation for qubit-qudit system using partition of qudit sytem into a set of qubit system. https://doi.org/10.1007/s10773-014-2008-x

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