Publication: Zeno effect in spontaneous decay induced by coupling to an unstable level
Loading...
Official URL
Full text at PDC
Publication Date
2001-09
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Citations
Exportar
Abstract
A metastable atomic level can be tendered unstable in a controllable way by coupling it to a decaying state. In this work we carry out a full dynamical analysis of the Zeno effect in this kind of unstable systems, comparing it to the inhibition of purely coherent Rabi oscillations. Simple and experimentally feasible measuring strategies involving three atomic levels are considered. It is shown that this induced decay is actually an example of a partial Zeno effect so that the observed evolution results from the competition of two Zeno effects. We also show that a three-level scheme can display both coherent, incoherent, and anti-Zeno effects.
Description
©2001 The American Physical Society
UCM subjects
Unesco subjects
Keywords
Citation
[1] D. Home and M.A.B. Whitaker, Ann. Phys. (N.Y.) 258, 237 (1997).
[2] A.M. Lane, Phys. Lett. 99A, 359 (1983); A. Luis and L.L. Sánchez-Soto, Phys. Rev. A 57, 781 (1998); S. Pascazio and P. Facchi, Acta Phys. Slov. 49, 557 (1999); A.G. Kofman and G. Kurizki, ibid. 49, 541 (1999); Nature (London) 405, 546 (2000); M. Lewenstein and K. Rzążewski, Phys. Rev. A 61, 022105 (2000); O.V. Prezhdo, Phys. Rev. Lett. 85, 4413 (2000).
[3] P. Facchi, H. Nakazato, and S. Pascazio, e-print quant-ph/0006094.
[4] Y. Aharonov and M. Vardi, Phys. Rev. D 21, 2235 (1980); T.P. Altenmüller and A. Schenzle, Phys. Rev. A 48, 70 (1993); M. Kitano, ibid. 56, 1138 (1997); M. Kitano, K. Yamane, and T. Ikushima, ibid. 59, 3710 (1999); A.P. Balachandran and S.M. Roy, Phys. Rev. Lett. 84, 4019 (2000); L. Diósi, e-print quant-ph/010429.
[5] W.M. Itano, D.J. Heinzen, J.J. Bollinger, and D.J. Wineland, Phys. Rev. A 41, 2295 (1990).
[6] S. Slijkhuis, G. Nienhuis, and R. Morgenstern, Phys. Rev. A 33, 3977 (1986); K. Mo.lhave and M. Drewsen, Phys. Lett. A 268, 45 (2000); T. Nakanishi, K. Yamane, and M. Kitano, e-print quant-ph/0103034.
[7] B. Nagels, L.J.F. Hermans, and P.L. Chapovsky, Phys. Rev. Lett. 79, 3097 (1997).
[8] S.R. Wilkinson, C.F. Bharucha, M.C. Fischer, K.W. Madison, P.R. Morrow, Q. Niu, B. Sundaram, and M.G. Raizen, Nature (London) 387, 575 (1997).
[9] M.B. Plenio, P.L. Knight, and R.C. Thompson, Opt. Commun. 123, 278 (1996).
[10] J.F. Poyatos, J.I. Cirac, and P. Zoller, Phys. Rev. Lett. 77, 4728 (1996); C.J. Myatt, B.E. King, Q.A. Turchette, C.A. Sackett, D. Kielpinski, W.M. Itano, C. Monroe, and D.J. Wineland, Nature (London) 403, 269 (2000); Q.A. Turchette, C.J. Myatt, B.E. King, C.A. Sackett, D. Kielpinski, W.M. Itano, C. Monroe, and D.J. Wineland, Phys. Rev. A 62, 053807 (2000).
[11] H.J. Kimble, R.J. Cook, and A.L. Wells, Phys. Rev. A 34, 3190 (1986).
[12] V. Frerichs and A. Schenzle, Phys. Rev. A 44, 1962 (1991); E. Block and P.R. Berman, ibid. 44, 1466 (1991).
[13] M.J. Gagen and G.J. Milburn, Phys. Rev. A 47, 1467 (1993).
[14] W. Nagourney, J. Sandberg, and H. Dehmelt, Phys. Rev. Lett. 56, 2797 (1986); Th. Sauter, W. Neuhauser, R. Blatt, and P.E. Toschek, ibid. 57, 1696 (1986); J.C. Bergquist, R.G. Hulet, W.M. Itano, and D.J. Wineland, ibid. 57, 1699 (1986).
[15] A. Peres and A. Ron, Phys. Rev. A 42, 5720 (1990); T.F. Jordan, E.C.G. Sudarshan, and P. Valanju, ibid. 44, 3340 (1991).
[16] A. Beige and G.C. Hegerfeldt, Phys. Rev. A 53, 53 (1996).
[17] L.S. Schulman, Phys. Rev. A 57, 1509 (1998).
[18] T.P. Altenmüller and A.S. Schenzle, Phys. Rev. A 49, 2016 (1994).
[19] T.P. Spiller, Phys. Lett. A 192, 163 (1994); O. Alter and Y. Yamamoto, Phys. Rev. A 55, R2499 (1997); P.E. Toschek and C. Wunderlich, e-print quant-ph/0009021.
[20] A. Beige and G.C. Hegerfeldt, J. Phys. A 30, 1323 (1997).
[21] Chr. Balzer, R. Huesmann, W. Neuhauser, and P.E. Toschek, Opt. Commun. 180, 115 (2000).
[22] W.L. Power and P.L. Knight, Phys. Rev. A 53, 1052 (1996).
[23] C. Cohen-Tannoudji and J. Dalibard, Europhys. Lett. 1, 441 (1986); P. Zoller, M. Marte, and D.F. Walls, Phys. Rev. A 35, 198 (1987).
[24] A. Luis and J. Peřina, Phys. Rev. Lett. 76, 4340 (1996).