Abstract.
We address the dynamics of entanglement transfer from two radiation modes to a pair of localized qubits implemented as atoms flying through or trapped in separated cavities. We first generalize previous results to include radiation in entangled mixed states and to describe the effect of cavity mirror transmittance. Then we investigate the transfer process by Monte Carlo Wave Function approach, which allows us to solve the whole system dynamics including cavity mode and atomic decays. We focus on flying modes prepared in coherently correlated states and we find realistic conditions for efficient entanglement transfer out of the weak and strong coupling regimes in the perspective of quantum memories realization.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
C. Monroe, Nature 416, 238 (2002); P. Zoller et al., Eur. Phys. J. D 36, 203 (2005); D.L. Moering et al., J. Opt. Soc. Am. B 24, 300 (2007)
I. Cirac et al., Phys. Rev. Lett. 78, 3221 (1997); C. Schön et al., Phys. Rev. Lett. 95, 110530 (2005)
T. Wilk et al., Science 317, 488 (2007)
J.A. Sauer et al., Phys. Rev. A 69, 051804 (R) (2004); S. Nussmann et al., Nat. Phys. 1, 122 (2005)
M. Paternostro, W. Son, M.S. Kim, Phys. Rev. Lett. 92, 197901 (2004)
B. Kraus J.I. Cirac, Phys. Rev. Lett. 92, 013602 (2004)
J. Zou et al., Phys. Rev. A 73, 042319 (2006)
F. Casagrande, A. Lulli, M.G.A. Paris, Phys. Rev. A 75, 032336 (2007)
G.S. Agarwal, Phys. Rev. Lett. 57, 827 (1986); G.S. Agarwal, J. Opt. Soc. Am. B 5, 1940 (1988)
B.L. Schumaker, C.M. Caves, Phys. Rev. A 31, 3093 (1985); S.M. Barnett, P.L. Knight, J. Mod. Opt. 34, 841 (1987); K. Watanabe, Y. Yamamoto, Phys. Rev. A 38, 3556 (1988)
W. Son et al., J. Mod. Opt. 49, 1739 (2002)
J. Lee et al., Phys. Rev. Lett. 96, 080501 (2006)
J. Dalibard, Y. Castin, K. Mølmer, Phys. Rev. Lett. 68, 580 (1992)
R.A. Campos, B.E.A. Saleh, M.C. Teich, Phys. Rev. A 40, 1371 (1989)
M.O. Scully, M.S. Zubairy, Quantum Optics (Cambridge University Press, Cambridge, 1997)
C.H. Bennett et al., Phys. Rev. A 54, 3824 (1996)
S. Hill, W.K. Wootters, Phys. Rev. Lett. 78, 5022 (1997)
W.K. Wootters, Phys. Rev. Lett. 80, 2245 (1998)
S. Zheng, G.C. Guo, Z. Phys. B 103, 311 (1997); S. Zheng, Physica A 260, 439 (1998)
X. Zou, Y. Dong, G. Guo, Phys. Rev. A 74, 015801 (2006)
M.D. Reid, L. Krippner, Phys. Rev. A 47, 552 (1993); A. Gilchrist, W.J. Munro, J. Opt. B: Quantum Semiclass. Opt. 2, 47 (2000)
R.F. Werner, Phys. Rev. A 40, 4277 (1989); B.M. Terhal, Phys. Rev. Lett. 85, 2625 (2000)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Casagrande, F., Lulli, A. & Paris, M. Dynamics of entanglement transfer from radiation modes to localized qubits. Eur. Phys. J. Spec. Top. 160, 71–81 (2008). https://doi.org/10.1140/epjst/e2008-00711-2
Issue Date:
DOI: https://doi.org/10.1140/epjst/e2008-00711-2