Abstract
With the help of some remarkable examples, it is shown that conditional measurements performed on two-level atoms just after they have interacted with a resonant cavity field mode are able to recover the coherence of number-state superpositions, which is lost due to dissipation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
W. H. Zurek, Phys. Rev. D 24, 1516 (1981); Phys. Rev. D 26, 1862 (1982); Phys. Today 44 (10), 36 (1991).
W. Unruh, Phys. Rev. A 51, 992 (1995); M. B. Plenio and P. L. Knight, Phys. Rev. A 53, 2986 (1996); C. H. Bennett, Phys. Today 48, 24 (1995).
I. L. Chuang and Y. Yamamoto, Phys. Rev. Lett. 76, 4281 (1996).
P. W. Shor, Phys. Rev. A 52, R2493 (1995); A. R. Calderbank and P. W. Shor, Phys. Rev. A 54, 1098 (1996); A. Ekert and C. Macchiavello, Phys. Rev. Lett. 77, 2585 (1996); A. Steane, Phys. Rev. Lett. 77, 793 (1996); A. Steane, Proc. R. Soc. London 452, 2551 (1996).
P. W. Shor, in Proc. 37th Annual Symposium on Foundations of Computer Science (IEEE, Los Alamitos, 1996); D. Aharonov and M. Ben-Or, Fault-tolerant quantum computation with constant error, lanl e-print quant-ph/9611025.
Theory: B. Sherman and G. Kurizki, Phys. Rev. A 45, R7674 (1992); B. Sherman, G. Kurizki, and A. Kadyshevitch, Phys. Rev. Lett. 69, 1927 (1992); B. M. Garraway, B. Sherman, H. Moya-Cessa, P. L. Knight, and G. Kurizki, Phys. Rev. A 49, 535 (1994); K. Vogel, V. M. Akulin, and W. P. Schleich, Phys. Rev. Lett. 71, 1816 (1993).
Experiment: L. Davidovich, M. Brune, J. M. Raimond, and S. Haroche, Phys. Rev. A 53, 1295 (1996); M. Brune et al., Phys. Rev. Lett. 77, 4887 (1996).
G. Harel, G. Kurizki, J. K. McIver, and E. Coutsias, Phys. Rev. A 53, 4534 (1996).
H. F. Arnoldus, J. Opt. Soc. Am. B 13, 1099 (1996); M. O. Scully and W. E. Lamb, Jr., Phys. Rev. 179, 368 (1969).
D. Meschede, Phys. Rep. 211, 201 (1992).
E. T. Jaynes and F. W. Cummings, Proc. IEEE 51, 89 (1963).
M. Fortunato, G. Harel, and G. Kurizki, Opt. Commun. 147, 71 (1998).
A. Kozhekin, G. Kurizki, and B. Sherman, Phys. Rev. A 54, 3535 (1996).
G. Harel and G. Kurizki, Phys. Rev. A 54, 5410 (1996).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Fortunato, M., Harel, G. & Kurizki, G. Using Conditional Measurements to Combat Decoherence. Journal of Superconductivity 12, 825–828 (1999). https://doi.org/10.1023/A:1007701530110
Issue Date:
DOI: https://doi.org/10.1023/A:1007701530110