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Phys. Rev. B 75, 033402 (2007) [4 pages]

Entanglement of a pair of atomic qubits near a carbon nanotube

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I. V. Bondarev* and B. Vlahovic
Physics Department, North Carolina Central University, 1801 Fayetteville Street, Durham, North Carolina 27707, USA

Received 8 November 2006; published 5 January 2007

We investigate the entanglement of quasi-one-dimensional atomic polariton states formed by atoms (ions) located close to or encapsulated inside carbon nanotubes and strongly coupled to the nanotube virtual photonic modes. Small-diameter metallic nanotubes are shown to result in sizable amounts of two-qubit atomic entanglement, which persists with no damping for very long times.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.75.033402
DOI:
10.1103/PhysRevB.75.033402
PACS:
78.40.Ri, 73.22.−f, 73.63.Fg, 78.67.Ch

*Also at Institute for Nuclear Problems, Belarusian State University, Bobruiskaya Str. 11, 220050 Minsk, Belarus.