Macroscopic Thermodynamical Witnesses of Quantum Entanglement

Details Macroscopic Thermodynamical Witnesses of Quantum Entanglement Macroscopic Thermodynamical Witnesses of Quantum Entanglement

2004-06-07

arxiv.org/abs/quant-ph/0406040v1

Physics

Quantum Physics

4 pages, 1 figure

Scientific paper

We show that macroscopic thermodynamical properties - such as functions of
internal energy and magnetization - can detect quantum entanglement in solids
at nonzero temperatures in the thermodynamical limit. We identify the parameter
regions (critical values of magnetic field and temperature) within which
entanglement is witnessed by these thermodynamical quantities.

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