A Simple Thermodynamical Witness Showing Universality of Macroscopic Entanglement
We show that if the ground state entanglement exceeds the total entropy of a given system, then this system is in an entangled state. This is a universal entanglement witness that applies to any physical system and yields a temperature below which we are certain to find some entanglement. Our witnes...
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Format: | Conference item |
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2009
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