Equation of state for Entanglement in a Fermi gas

Details Equation of state for Entanglement in a Fermi gas Equation of state for Entanglement in a Fermi gas

2004-10-21

arxiv.org/abs/quant-ph/0410166v2

Phys. Rev. A 71, 034309 (2005)

Physics

Quantum Physics

To appear in Phys. Rev. A., 4 pages, 1 figure

Scientific paper

10.1103/PhysRevA.71.034309

Entanglement distance is the maximal separation between two entangled electrons in a degenerate electron gas. Beyond that distance, all entanglement disappears. We relate entanglement distance to degeneracy pressure both for extreme relativistic and non-relativistic systems, and estimate the entanglement distance in a white dwarf. Treating entanglement as a thermodynamical quantity, we relate the entropy of formation and concurrence to relative electron distance, pressure, and temperature, to form a new equation of state for entanglement.

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