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›› 2016, Vol. 33 ›› Issue (3): 334-338.DOI: 10.7523/j.issn.2095-6134.2016.03.008

• Research Articles • Previous Articles     Next Articles

Classification of the entangled states of 2×L×M×N×H

JIA Kangkang, LI Junli, QIAO Congfeng   

  1. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2016-05-15
  • Supported by:

    Supported by National Key Basic Research Program of China(2015CB856700) and National Natural Science Foundation of China(11175249,11121092,11375200)

Abstract:

In this work we propose a practical entanglement classification scheme for pure states of 2×L×M×N×H under the stochastic local operation and classical communication (SLOCC), which generalizes the method explored in the entanglement classification of 2×L×M×N to the five-partite system. The entangled states of 2×L×M×N×H system are first classified into different coarse-grained standard forms by using matrix decompositions, and then fine-grained identifications of two inequivalent entangled states with the same standard form are made by using the matrix realignment technique. As a practical example, the entanglement classes of the five-qubit system of 2×2×2×2×2 are presented.

Key words: quantum entanglement, SLOCC, nonlocal parameter

CLC Number: