Chinese Physics Letters

Entanglement in the Ground State of an Isotropic Three-Qubit Transverse XY Chain with Energy Current

Dan Liu, Yong Zhang, Yang Liu, Long Gui-Lu

Published Jan 1, 2007• 15 citations

Abstract

The ground state entanglement in an isotropic three-qubit transverse XY chain with energy current is analysed. A quantum phase transition from a no-energy-current phase to energy-current phase is found when the magnetic field changes. It has also been found that the ground state changes in company with the quantum phase transition.

DOI: 10.1088/0256-307x/24/1/003

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