期刊
REVIEWS IN MATHEMATICAL PHYSICS
卷 17, 期 5, 页码 545-576出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0129055X05002364
关键词
entanglement; distillability; quantum field theory; Reeh-Schlieder property
Criteria for distillability, and the property of having a positive paxtial transpose, are introduced for states of general bipartite quantum systems. The framework is sufficiently general to include systems with an infinite number of degrees-of-freedom, including quantum fields. We show that a large number of states in relativistic quantum field theory, including the vacuum state and thermal equilibrium states, are distillable over subsystems separated by arbitrary spacelike distances. These results apply to any quantum field model. It will also be shown that these results can be generalized to quantum fields in curved spacetime, leading to the conclusion that there is a large number of quantum field states which axe distillable over subsystems separated by an event horizon.
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