How useful is entanglement entropy?
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In thermodynamics, the entropy SS can be used to determine various physical quantities, i.e. the free energy, the temperature etc.
If I calculate the entanglement entropy of a system, is there some analogous quantities that I can derive? Do I know anything more about the full system than I did before, having calculated the entanglement entropy of some sub-system? (Other than the amount of entanglement between the subsystems)
If I calculate the entanglement entropy of a system, is there some analogous quantities that I can derive? Do I know anything more about the full system than I did before, having calculated the entanglement entropy of some sub-system? (Other than the amount of entanglement between the subsystems)
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