Entanglement in disordered and non-equilibrium systems

We calculate an entanglement witness for a disordered spin system using the method of functional many-body perturbation theory, comparing the effect of taking a quenched and an annealed average over the disorder. We find, on considering the example of an XX Heisenberg spin chain with a Dzyaloshinski...

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Bibliographic Details
Main Authors: Hide, J, Vedral, V
Format: Conference item
Published: 2010