Transport of entanglement through a Heisenberg–XY spin chain

Transport of entanglement through a Heisenberg–XY spin chain The entanglement dynamics of spin chains is investigated using Heisenberg–XY spin Hamiltonian dynamics. The various measures of two-qubit entanglement are calculated analytically in the time-evolved state starting from initial states with no entanglement and exactly one pair of maximally entangled qubits. The localizable entanglement between a pair of qubits at the end of chain captures the essential features of entanglement transport across the chain, and it displays the difference between an initial state with no entanglement and an initial state with one pair of maximally-entangled qubits. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physics Letters A Elsevier

Transport of entanglement through a Heisenberg–XY spin chain

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Publisher
Elsevier
Copyright
Copyright © 2005 Elsevier B.V.
ISSN
0375-9601
D.O.I.
10.1016/j.physleta.2005.09.021
Publisher site
See Article on Publisher Site

Abstract

The entanglement dynamics of spin chains is investigated using Heisenberg–XY spin Hamiltonian dynamics. The various measures of two-qubit entanglement are calculated analytically in the time-evolved state starting from initial states with no entanglement and exactly one pair of maximally entangled qubits. The localizable entanglement between a pair of qubits at the end of chain captures the essential features of entanglement transport across the chain, and it displays the difference between an initial state with no entanglement and an initial state with one pair of maximally-entangled qubits.

Journal

Physics Letters AElsevier

Published: Jan 9, 2006

References

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