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Formation of entangled states in nonequilibrium quantum systems with partial coherent pumping

  • Proceedings of the XV National Sukhorukov Seminar “Wave Phenomena in Inhomogeneous Media” (Waves 2016)
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The problem of generating the entangled states of two parametrically coupled quantum oscillators at finite temperatures is considered. For coherent pumping, an analytical expression describing the behavior of logarithmic negativity is obtained using the Heisenberg–Langevin formalism. The expression also describes the attaining of a long nonzero steady-state value of logarithmic negativity. It is shown numerically that pumping noise limits the lifetime of entanglement in the system.

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References

  1. The Physics of Quantum Information: Quantum Cryptography, Quantum Teleportation, Quantum Computation, Bouwmeester, D., Ekert, A.K., and Zeilinger, A., Eds., Springer, 2000.

  2. Nielsen, M.A. and Chuang, I.L., Quantum Computation and Quantum Information, Cambridge Univ. Press, 2000.

    MATH  Google Scholar 

  3. Vedral, V., Nature, 2010, vol. 468, no. 7325, p. 769.

    Article  ADS  Google Scholar 

  4. Galve, F., Pachón, L.A., and Zueco, D., Phys. Rev. Lett., 2010, vol. 105, no. 18, p. 180501.

    Article  ADS  Google Scholar 

  5. Schmidt, R., Stockburger, J.T., and Ankerhold, J., Phys. Rev. A, 2013, vol. 88, no. 5, p. 052321.

    Article  ADS  Google Scholar 

  6. Roque, T.F. and Roversi, J.A., Phys. Rev. A, 2013, vol. 88, no. 3, p. 032114.

    Article  ADS  Google Scholar 

  7. Chen, R.-X., et al., Phys. Rev. A, 2015, vol. 91, no. 1, p. 012312.

    Article  ADS  MathSciNet  Google Scholar 

  8. Akhmanov, S.A., D’yakov, Yu.E., and Chirkin, A.S., Vvedenie v statisticheskuyu radiofiziku i optiku (Introduction to Statistical Radiophysics and Optics), Moscow Nauka, 1981.

    Google Scholar 

  9. Scully, M.O. and Zubairy, M.S., Quantum Optics, Cambridge Univ. Press, 1997.

    Book  MATH  Google Scholar 

  10. Yu, T. and Eberly, J.H., Opt. Commun., 2006, vol. 264, no. 2, p. 393.

    Article  ADS  Google Scholar 

  11. Vidal, G. and Werner, R.F., Phys. Rev. A, 2002, vol. 65, no. 3, p. 032314.

    Article  ADS  Google Scholar 

Download references

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, 603950, Russia

    V. O. Martynov, V. A. Mironov & L. A. Smirnov

Authors
  1. V. O. Martynov
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  2. V. A. Mironov
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  3. L. A. Smirnov
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Corresponding author

Correspondence to V. O. Martynov.

Additional information

Original Russian Text © V.O. Martynov, V.A. Mironov, L.A. Smirnov, 2017, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2017, Vol. 81, No. 1, pp. 29–33.

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Martynov, V.O., Mironov, V.A. & Smirnov, L.A. Formation of entangled states in nonequilibrium quantum systems with partial coherent pumping. Bull. Russ. Acad. Sci. Phys. 81, 22–26 (2017). https://doi.org/10.3103/S1062873817010178

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  • DOI: https://doi.org/10.3103/S1062873817010178

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