Freezing distributed entanglement in spin chains

Irene D'Amico*, Brendon W. Lovett, Timothy P. Spiller

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number030302
Number of pages4
JournalPhysical Review A
Issue number3
Publication statusPublished - 12 Sept 2007

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