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A Decoherence-Reduction Scheme by Waveguides in Quantum Information Processing

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Abstract

Based on the result of cavity quantum electrodynamics, we suggest a method, in which the Fabry-Perot cavity or the confocal cavity is replaced by a waveguide with the size comparable to the wavelength of the photon, to reduce decoherence caused by spontaneous emission in quantum information processing, especially in the realization of quantum computation. Since a waveguide has a lowest cutoff frequency while a Fabry-Perot cavity or a confocal cavity has none, the spontaneous emission of excited atoms will be forbidden in an ideal waveguide with an appropriate size. To avoid the influence of the non-ideal conducting walls on the atom in a realistic waveguide, which will lead to decoherence, we suggest that the waveguide should be coated by a thin film of transparent insulating medium. In our method, the quantum information is represented by a multi-level atom or molecule; any two of its levels can be used to represent a qubit in principle. Our method greatly extends the choice of the material to be used in the realization of quantum computation, and it can be used in most schemes to reduce the decoherence caused by spontaneous emission.

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References

  1. Barenco, A., Deutsch, D., Ekert, A., Jozsa, R.: Phys. Rev. Lett. 74, 4083 (1995)

    Article  ADS  Google Scholar 

  2. Sleator, T., Weinfurter, H.: Phys. Rev. Lett. 74, 4087 (1995)

    Article  MATH  ADS  MathSciNet  Google Scholar 

  3. Turchette, Q.A., Hood, C.J., Lange, W., Mabuchi, H., Kimble, H.J.: Phys. Rev. Lett. 75, 4710 (1995)

    Article  ADS  MathSciNet  Google Scholar 

  4. Pinkse, P.W.H., Fischer, T., Maunz, P., Rempe, G.: Nature 404, 365 (2000)

    Article  ADS  Google Scholar 

  5. Pellizzari, T., Gardiner, S.A., Cirac, J.I., Zoller, P.: Phys. Rev. Lett. 75, 3788 (1995)

    Article  ADS  Google Scholar 

  6. You, L., Chapman, M.S.: Phys. Rev. A 62, 052302 (2000)

    Article  ADS  Google Scholar 

  7. Nielsen, M.A., Chuang, I.L.: Quantum Computation and Quantum Information. Cambridge University Press, Cambridge (2000)

    MATH  Google Scholar 

  8. Berman, P.R.: Cavity Quantum Electrodynamics. Academic Press, New York (1994)

    Google Scholar 

  9. Sisman, A., Muller, I.: Phys. Lett. A 320, 360 (2004)

    Article  ADS  Google Scholar 

  10. Sisman, A.: J. Phys. A Math. Gen. 37, 11353 (2004)

    Article  MATH  ADS  Google Scholar 

  11. Sisman, A., Ozturk, Z.F.: Phys. Lett. A 362, 16 (2007)

    Article  ADS  Google Scholar 

  12. Dai, W.-S., Xie, M.: Phys. Lett. A 311, 340 (2003)

    Article  MATH  ADS  MathSciNet  Google Scholar 

  13. Dai, W.-S., Xie, M.: Phys. Rev. E 70, 016103 (2004)

    ADS  Google Scholar 

  14. Dai, W.-S., Xie, M.: Europhys. Lett. 72, 887 (2005)

    Article  ADS  MathSciNet  Google Scholar 

  15. Pang, H., Dai, W.-S., Xie, M.: J. Phys. A Math. Gen. 39, 2563 (2006)

    Article  MATH  ADS  MathSciNet  Google Scholar 

  16. Dai, W.-S., Xie, M.: J. Math. Phys. 48, 123302 (2007)

    Article  ADS  MathSciNet  Google Scholar 

  17. Purcell, E.M.: Phys. Rev. 69, 681 (1946)

    Article  Google Scholar 

  18. Kleppner, D.: Phys. Rev. Lett. 47, 233 (1981)

    Article  ADS  Google Scholar 

  19. Dai, W.-S., Xie, M.: Eur. Phys. J. D 19, 125 (2002)

    ADS  Google Scholar 

  20. Dai, W.-S., Xie, M.: In preparation

  21. Gross, F.: Relativistic Quantum Mechanics and Field Theory. Willey, New York (1993)

    Google Scholar 

  22. Hinds, E.A.: Perturbative cavity quantum electrodynamics. In: Cavity Quantum Electrodynamics. Academic Press, New York (1994)

    Google Scholar 

  23. Hinds, E.A., Lai, K.S., Schnell, M.: Philos. Trans. R. Soc. Lond. A 355, 2353 (1997)

    Article  ADS  Google Scholar 

  24. Fox, M.: Optical Properties of Solids. Oxford University Press, Oxford (2001)

    Google Scholar 

  25. Born, M., Wolf, E.: Principles of Optics, 7th edn. Cambridge University Press, Cambridge (1999)

    Google Scholar 

  26. DiVincenzo, D.P.: Phys. Rev. A 51, 1015 (1995)

    Article  ADS  Google Scholar 

  27. Chuang, I.L., Gershenfeld, N., Kubinec, M.: Phys. Rev. Lett. 80, 3408 (1998)

    Article  Google Scholar 

  28. Chuang, I.L., Vandersypen, L.M.K., Zhou, X.L., Leung, D.W., Lloyd, S.: Nature 393, 143 (1998)

    Article  Google Scholar 

  29. Cirac, J.I., Zoller, P.: Phys. Rev. Lett. 74, 4091 (1995)

    Article  ADS  Google Scholar 

  30. Monroe, C., Meekhof, D.M., King, B.E., Itano, W.M., Wineland, D.J.: Phys. Rev. Lett. 75, 4714 (1995)

    Article  MATH  ADS  MathSciNet  Google Scholar 

  31. Sackett, C.A., Kielpinski, D., King, B.E., Langer, C., Meyer, V., Myatt, C.J., Rowe, M., Turchette, Q.A., Itano, W.M., Wineland, D.J., Monroe, C.: Nature 404, 256 (2000)

    Article  ADS  Google Scholar 

  32. Loss, D., DiVincenzo, D.P.: Phys. Rev. A 57, 120 (1998)

    Article  Google Scholar 

  33. Sherwin, M.S., Imamoglu, A., Montroy, T.: Phys. Rev. A 60, 3508 (1999)

    Article  ADS  Google Scholar 

  34. Chen, J.L., Wang, Q.L.: Int. J. Theor. Phys. 46, 614 (2007)

    Article  MATH  Google Scholar 

  35. Vučković, J., Lončar, M., Mabuchi, H., Scherer, A.: Phys. Rev. E 65, 016608 (2001)

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Department of Physics, Tianjin University, Tianjin, 300072, People’s Republic of China

    Ning Ou-Yang, Jun-Li Wang, Ping Zhang & Hai Pang

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  1. Ning Ou-Yang
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  2. Jun-Li Wang
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  3. Ping Zhang
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  4. Hai Pang
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Correspondence to Hai Pang.

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Ou-Yang, N., Wang, JL., Zhang, P. et al. A Decoherence-Reduction Scheme by Waveguides in Quantum Information Processing. Int J Theor Phys 48, 743–754 (2009). https://doi.org/10.1007/s10773-008-9850-7

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  • DOI: https://doi.org/10.1007/s10773-008-9850-7

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