A note on invariants and entanglements

A note on invariants and entanglements
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DOI:
10.1088/1464-4266/3/4/305
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发表时间:
2001-08-01
期刊:
JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS
影响因子:
--
通讯作者:
Fei, SM
Fei, SM
中科院分区:
其他
文献类型:
--
作者:
Albeverio, S;Fei, SM

文献摘要

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从局部酉变换下的不变量的角度研究了量子纠缠。给出了n维量子系统并发性的一个广义公式。这种广义并发性在研究高维混合量子态的可分性和计算形成缠结方面具有潜在的应用价值。
Quantum entanglements are studied in terms of the invariants under local unitary transformations. A generalized formula of concurrence for N-dimensional quantum systems is presented. This generalized concurrence has potential applications in studying separability and calculating the entanglement of formation for high-dimensional mixed quantum states.