Calabrese, Pasquale and Mintchev, Mihail and Vicari, Ettore (2012) Entanglement entropies in free fermion gases for arbitrary dimension. EPL (Europhysics letters), 97 . p. 20009. ISSN 0295-5075
Full text not available from this repository.Abstract
We study the entanglement entropy of connected bipartitions in free fermion gases of N particles in arbitrary dimension d. We show that the von Neumann and Renyi entanglement entropies grow asymptotically as N^(1-1/d) ln N, with a prefactor that is analytically computed using the Widom conjecture both for periodic and open boundary conditions. The logarithmic correction to the power-law behavior is related to the area-law violation in lattice free fermions. These asymptotic large-N behaviors are checked against exact numerical calculations for N-particle systems.
Item Type: | Article |
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Additional Information: | Imported from arXiv |
Subjects: | Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici |
Divisions: | Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA |
Depositing User: | dott.ssa Sandra Faita |
Date Deposited: | 11 Feb 2014 23:35 |
Last Modified: | 11 Feb 2014 23:35 |
URI: | http://eprints.adm.unipi.it/id/eprint/1866 |
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