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Inseparability Criteria For Continuous Bipartite Quantum States
PHYSICAL REVIEW LETTERS, no. 23 (2005)
摘要
We provide necessary and sufficient conditions for the partial transposition of bipartite harmonic quantum states to be nonnegative. The conditions are formulated as an infinite series of inequalities for the moments of the state under study. The violation of any inequality of this series is a sufficient condition for entanglement. Previo...更多
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