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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 3, Iss. 3 — Mar. 10, 2005
  • pp: 176–178

Conditional quantum CNOT gate between two four-level atoms

Yang Fan  »View Author Affiliations

Chinese Optics Letters, Vol. 3, Issue 3, pp. 176-178 (2005)

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We propose a scheme to implement a quantum controlled-NOT (CNOT) gate between two four-level atoms inside the detuned optical cavity. The system state is evolved inside the decoherence-free (DF) subspace through stimulated Raman processes, which yields the desired unitary evolution operation for the CNOT. Our scheme is immune to decoherence due to dissipation of cavity excitation and spontaneous emission from the excited atomic level.

© 2005 Chinese Optics Letters

OCIS Codes
(000.2690) General : General physics
(270.0270) Quantum optics : Quantum optics

Yang Fan, "Conditional quantum CNOT gate between two four-level atoms," Chin. Opt. Lett. 3, 176-178 (2005)

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  1. D. Deutsch, Proc. R. Soc. Lond. A 400, 97 (1985).
  2. D. Deutsch, Proc. R. Soc. Lond. A 425, 73 (1989).
  3. L. K. Grover, Phys. Rev. Lett. 79, 4709 (1995).
  4. S.-B. Zheng and G.-C. Guo, Phys. Rev. Lett. 85, 2392 (2000).
  5. I. E. Protsenko, G. Reymond, N. Schlosser, and P. Grangier, Phys. Rev. A 66, 062306 (2002).
  6. J. I. Cirac and P. Zoller, Phys. Rev. Lett. 74, 4091 (1995).
  7. A. Rauschenbeutel, G. Nogues, S. Osnaghi, P. Bertet, M. Brune, J. M. Raimond, and S. Haroche, Phys. Rev. Lett. 83, 5166 (1999).
  8. S. Osnaghi, P. Bertet, A. Auffeves, P. Maioli, M. Brune, J. M. Raimond, and S. Haroche, Phys. Rev. Lett. 87, 037902 (2001).
  9. A. Beige, D. Braun, B. Tregennan, and P. L. Knight, Phys. Rev. Lett. 85, 1762 (2000).
  10. B. Tregenna, A. Beige, and P. L. Knight, Phys. Rev. A 65, 032305 (2002).
  11. A. Beige, D. Braun, and P. L. Knight, New J. Phys. 2, 22 (2000).
  12. G. R. Guthorlein, M. Keller, K. Hayasaka, W. Lange, and H. Walther, Nature 414, 49 (2001).
  13. M. B. Plenio and P. L. Knight, Rev. Mod. Phys. 70, 101 (1998).

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