Localizable entanglement in antiferromagnetic and mixed Heisenberg chains: a quantum Monte Carlo study

Authors:
Petros Androvitsaneas;Andreas F. Terzis;Emmanuel Paspalakis
Affiliations:
Department of Physics, School of Natural Sciences, University of Patras, Patras, Greece 265 04;Department of Physics, School of Natural Sciences, University of Patras, Patras, Greece 265 04;Materials Science Department, School of Natural Sciences, University of Patras, Patras, Greece 265 04
Venue:
Quantum Information Processing
Year:
2013

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Abstract

We investigate entanglement formation in antiferromagnetic and mixed anisotropic, finite, one-dimensional Heisenberg chains with and without the presence of a uniform magnetic field. We explore the thermal entanglement created in terms of the bounds of the localizable entanglement and the possibility for quantum phase transitions in the zero field cases by means of standard quantum Monte Carlo method.