Two qubits entanglement dynamics in a symmetry-broken environment

Preprint

10 February 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0402073

Abstract

We study the temporal evolution of entanglement pertaining to two qubits interacting with a thermal bath. In particular we consider the simplest nontrivial spin bath models where symmetry breaking occurs and treat them by mean field approximation. We analytically find decoherence free entangled states as well as entangled states with an exponential decay of the quantum correlation at finite temperature.

Keywords

ENTANGLEMENT DYNAMICS
QUBITS ENTANGLEMENT
SIMPLEST NONTRIVIAL
BROKEN ENVIRONMENT
ENTANGLED STATES
SYMMETRY BROKEN
TWO QUBITS
EVOLUTION

All Related Versions

Version 1, 2004-02-10, ArXiv
Published version: Physical Review A, 69 (6), 062308.

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