Long-lived entanglement between two distant atoms via left-handed materials

Yaping Yang*, Jingping Xu, Hong Chen, Shi Yao ZHU

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

16 Citations (Scopus)


A method is proposed to generate entanglement between two distant atoms and to preserve the entanglement for a long time by using the properties of refocusing and phase compensation of left-handed (negative-index) materials and spontaneous emission. A distance of ten wavelengths in our method compared with less than one wavelength in free space is achieved for the generation of concurrence of 1/2 between two identical atoms from an initially separable state. The concurrence can be kept for a very long time for ideal left-handed materials, and can be kept for tens of (or several) atomic lifetimes for absorptive left-handed materials.

Original languageEnglish
Article number030304
JournalPhysical Review A
Issue number3
Publication statusPublished - 27 Sept 2010

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics


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