Abstract
We investigate entanglement and mixedness of a superconducting qubit coupled to the damped cavity field. We introduce a new measure for the mixedness and find that the phase damping of the cavity leads to simultaneous long-death of the entropy squeezing, the purity of the qubit states, and the entanglement of the field–qubit system.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
J. Vidal, G. Palacios, and C. Aslangul, Phys. Rev. A, 70, 062304 (2004).
X. S. Ma and A. M. Wang, Opt. Commun. 270, 465 (2007).
M. Asoudeh and V. Karimipour, Phys. Rev. A, 70, 052307 (2004).
M. Sebaweh Abdalla, A. S.-F. Obada, E. M.Khalil, and A.-B. A. Mohamed, Solid State Commun., 184, 56 (2014).
K. Berrada, M. El Baz, H. Eleuch, and Y. Hassouni, Int. J. Mod. Phys. C, 21, 291 (2010).
H. Eleuch, Int. J. Mod. Phys. B, 24, 5653 (2010).
E. A. Sete, H. Eleuch, and C. H. Ooi, J. Opt. Soc. Am. B, 31, 2821 (2014).
E. A. Sete and H. Eleuch, Phys. Rev. A, 89, 013841 (2014).
D. Vion, A. Aassime, A. Cottet, et al., Science, 296, 886 (2002).
Y. Yu, S. Han, X. Chu, et al., Science, 296, 889 (2002).
Chiorescu, Y. Nakamura, C. J. P. M. Harmans, and J. E. Mooij, Science, 299, 1869 (2003).
D. V. Averin, Fortschr. Phys., 48, 1055 (2000).
B.-G. Englert and N. Metwally, J. Mod. Opt., 47, 221 (2000).
B.-G. Englert, P. Lougovski, and E. Solano, Laser Phys., 13, 355 (2003).
N. Metwally, M. R. B. Wahiddin, and M. Bourennane, Opt. Commun., 257, 206 (2006).
N. Metwally, M. Abdel-Atya, and A.-S.F. Obada, Phys. Lett. A, 373, 927 (2009).
L. Jak´obczyk and M. Siennicki, Phys. Lett. A, 286, 383 (2001).
G. Kimura, Phys. Lett. A, 314, 339 (2003).
X. S. Li, D. L. Lin, T. F. Geoge, and Z. D. Liu, Phys. Rev. A, 40, 2504 (1989).
P. Zhou and J. S. Peng, Phys. Rev. A, 44, 3331 (1991).
M. M. Ashraf and M. S. K. Razmi, Phys. Rev. A, 45, 8121 (1992).
M. Kitagawa and M. Ueda, Phys. Rev. A, 47, 5138 (1993).
D. J. Wineland, J. J. Bollinger, W. M. Itano, and D. J. Heinzen, Phys. Rev. A, 50, 67 (1994).
M. F. Fang, P. Zhou, and S. Swain, J. Mod. Opt., 47, 1043 (2000).
M. Abdel-Aty, M. S. Abdalla, and A.-S. F. Obada, J. Phys. A: Math. Gen., 34, 9129 (2001).
M. S. Abdalla, A.-S. F. Obada and M. Abdel-Aty, J. Phys. B: At. Mol. Opt. Phys., 37, 775 (2004).
M. Reboiro, O. Civitarese, and D. Tielas, J. Russ. Laser Res., 35, 110 (2014).
X. P. Liao and M. F. Fang, Physica A, 332, 176 (2004).
E. Glushkov, N. Glushkova, and V. I. Man’ko, J. Russ. Laser Res., 36, 448 (2015).
J. Q. You, J. S. Tsai, and F. Nori, Phys. Rev. B, 68, 024510 (2003).
J. Q. You, J. S. Tsai, and F. Nori, Physica E, 18, 35 (2003).
Yu-xi Liu, L. F. Wei, and F. Nori, Europhys. Lett., 67, 941 (2004).
Yu-xi Liu, L. F. Wei, and F. Nori, Phys. Rev. A, 71, 063820 (2005).
Y. B. Gao, Y. D. Wang, and C. P. Sun, Phys. Rev. A, 71, 032302 (2005).
Y. B. Gao, Y. D. Wang, and C. P. Sun, Phys. Rev. A, 71, 042301 (2005).
R. Migliore, J. Superconduct. Nov. Magn., 19, 33 (2006).
S. M. Barnett and P. L. Knight, Phys. Rev. A, 33, 2444 (1986).
R. R. Puri and G. S. Agarwal, Phys. Rev. A, 35, 3433 (1987).
A-S. F. Obada, H. A. Hessian, and A.-B. A. Mohamed, J. Phys. B: At. Mol. Opt. Phys., 40, 2241 (2007); Corrigendum, ibid, 41, 159801 (2008).
G. Vidal and R. F. Werner, Phys. Rev. A, 65, 032314 (2002).
I. I. Hirschman, Am. J. Math., 79, 152 (1957).
B. Bialynicki and J. Mycieski, Commun. Math. Phys., 44, 129 (1975).
W. Beckner, Ann. Math., 102, 159 (1975).
D. Deutsch, Phys. Rev., 50, 631 (1983).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Mohamed, AB.A., Eleuch, H. Entanglement and Mixedness of a Superconducting Qubit Coupled to an Open Superconducting Cavity. J Russ Laser Res 37, 353–360 (2016). https://doi.org/10.1007/s10946-016-9582-8
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10946-016-9582-8