Entanglement negativity in extended systems: a field theoretical approach

We report on a systematic approach for the calculation of the negativity in the ground state of a one-dimensional quantum field theory. The partial transpose ρAT2 of the reduced density matrix of a subsystem A = A1 ∪ A2 is explicitly constructed as an imaginary-time path integral and from this the r...

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Bibliografische gegevens
Hoofdauteurs: Calabrese, P, Cardy, J, Tonni, E
Formaat: Journal article
Taal:English
Gepubliceerd in: 2013

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