Freezing distributed entanglement in spin chains

TY - JOUR

T1 - Freezing distributed entanglement in spin chains

AU - D'Amico, Irene

AU - Lovett, Brendon W.

AU - Spiller, Timothy P.

PY - 2007/9/12

Y1 - 2007/9/12

N2 - We show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems. The technique that we propose simply requires single-qubit operations and isolates the entanglement in specific qubits at the ends of branches. Such frozen entanglement provides a useful resource, for example for teleportation or distributed quantum processing. The scheme can be applied to a wide range of systems-including actual spin systems and alternative qubit embodiments in strings of quantum dots, molecules, or atoms. © 2007 The American Physical Society.

AB - We show how to freeze distributed entanglement that has been created from the natural dynamics of spin chain systems. The technique that we propose simply requires single-qubit operations and isolates the entanglement in specific qubits at the ends of branches. Such frozen entanglement provides a useful resource, for example for teleportation or distributed quantum processing. The scheme can be applied to a wide range of systems-including actual spin systems and alternative qubit embodiments in strings of quantum dots, molecules, or atoms. © 2007 The American Physical Society.

UR - http://www.scopus.com/inward/record.url?scp=34548811940&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.76.030302

DO - 10.1103/PhysRevA.76.030302

M3 - Article

SN - 1050-2947

VL - 76

JO - Physical Review A

JF - Physical Review A

IS - 3

M1 - 030302

ER -