Abstract
In this paper, we present a generalized transformation of the optimal asymmetric \(1\longrightarrow 2\) phase-covariant quantum cloning. This generalization is based on the deformed forms of the exponential that emerge from nonextensive statistical mechanics. In particular, two distinct definitions of the q-exponential are discussed. The case where the cloning is symmetric is also studied. In order to highlight the influence of nonextensive treatment on the perfection of clones and entanglement, the effect of the q-index has been clearly illustrated in figures depicting the fidelities in terms of the entanglement parameter \(\theta \) for different values of q. Our study shows that due to the intrinsic properties of the system, the entanglement is not preserved. Thus, entanglement can be controlled by the nonextensive parameter. As an illustration, the incoherent attack on the BB84 protocol has also been considered in the economical case.
Similar content being viewed by others
References
Mor, T.: No cloning of orthogonal states in composite systems. Phys. Rev. Lett 80, 3137–3140 (1998)
Wootters, W.K., Zurek, W.H.: A single quantum cannot be cloned. Nature 299, 802–803 (1982)
Dieks, D.: Communication by EPR devices. Phys. Lett. A 92, 271–272 (1982)
Gisin, N., Ribordy, G., Tittel, W., Zbinden, H.: Quantum cryptography. Rev. Mod. Phys. 74, 145–195 (2002)
Bužek, V., Hillery, M.: Quantum copying: beyond the no-cloning theorem. Phys. Rev. A 54, 1844–1852 (1996)
Scarani, V., Iblisdir, S., Gisin, N., Acin, A.: Quantum cloning. Rev. Mod. Phys. 77, 1225–1256 (2005)
Hayashi, M., Iwama, K., Nishimura, H., Raymond, R., Yamashita, S.: Quantum Network Coding. Lecture Notes in Computer Science, vol. 4393. Springer, Berlin (2007)
Bruß, D., DiVincenzo, D.P., Ekert, A., Fuchs, C.A., Macchiavello, C., Smolin, J.A.: Universal and state-dependent quantum cloning. Phys. Rev. A 57, 2368–2378 (1998)
Bruß, D., Cinchetti, M., d’ Ariano, G.M., Macchiavello, C.: Phase-covariant quantum cloning. Phys. Rev. A 62, 012302 (2000)
Fuchs, C.A., Gisin, N., Griffiths, R.B., Niu, C.-S., Peres, A.: Optimal eavesdropping in quantum cryptography. I. Information bound and optimal strategy. Phys. Rev. A 56, 1163–1172 (1997)
Bruß, D.: Optimal eavesdropping in quantum cryptography with six states. Phys. Rev. Lett. 81, 3018–3021 (1998)
Cerf, N.J., Bourennane, M., Karlsson, A., Gisin, N.: Security of quantum key distribution using \(\mathit{d}\)-level systems. Phys. Rev. Lett. 88, 127902 (2002)
Fan, H., Wang, Y.-N., Jing, L., Yue, J.-D., Shi, H.-D., Zhang, Y.-L., Mu, L.-Z.: Quantum cloning machines and the applications. Phys. Rep. 544(3), 241–322 (2014)
Xiong, Z.-X., Shi, H.-D., Wang, Y.-N., Jing, L., Lei, J., Mu, L.-Z., Fan, H.: General quantum key distribution in higher dimension. Phys. Rev. A 85, 012334 (2012)
Peev, M., Pacher, C., Alléaume, R., Barreiro, C., Bouda, J., Boxleitner, W., Debuisschert, T., Diamanti, E., Dianati, M., Dynes, J., et al.: The secoqc quantum key distribution network in Vienna. N. J. Phys. 11(7), 075001 (2009)
Xu, F., Chen, W., Wang, S., Yin, Z., Zhang, Y., Liu, Y., Zhou, Z., Zhao, Y., Li, H., Liu, D., et al.: Field experiment on a robust hierarchical metropolitan quantum cryptography network. Chin. Sci. Bull. 54(17), 2991–2997 (2009)
Eraerds, P., Walenta, N., Legré, M., Gisin, N., Zbinden, H.: Quantum key distribution and 1 gbps data encryption over a single fibre. N. J. Phys. 12(6), 063027 (2010)
Fröhlich, B., Dynes, J.F., Lucamarini, M., Sharpe, A.W., Yuan, Z., Shields, A.J.: A quantum access network. Nature 501(7465), 69–72 (2013)
Korzh, B., Lim, C.C.W., Houlmann, R., Gisin, N., Li, M.J., Nolan, D., Sanguinetti, B., Thew, R., Zbinden, H.: Provably secure and practical quantum key distribution over 307 km of optical fibre. Nat. Photon. 9, 163–168 (2015)
Li, Y.-B., Xu, S.-W., Wang, Q.-L., Liu, F., Wan, Z.-J.: Quantum key distribution based on interferometry and interaction-free measurement. Int. J. Theor. Phys. 1–9 (2015). doi:10.1007/s10773-015-2636-9
Durt, T., Cerf, N.J., Gisin, N., Żukowski, M.: Security of quantum key distribution with entangled qutrits. Phys. Rev. A 67, 012311 (2003)
Durt, T., Kaszlikowski, D., Chen, J.-L., Kwek, L.C.: Security of quantum key distributions with entangled qudits. Phys. Rev. A 69, 032313 (2004)
Renner, R., Gisin, N., Kraus, B.: Information-theoretic security proof for quantum-key-distribution protocols. Phys. Rev. A 72, 012332 (2005)
Chiribella, G., D’Ariano, G.M., Perinotti, P., Cerf, N.J.: Extremal quantum cloning machines. Phys. Rev. A 72, 042336 (2005)
Tsallis, C.: Introduction to Nonextensive Statistical Mechanics: Approaching a Complex World, 1st edn. Springer, New York (2009)
Tsallis, C.: Possible generalization of Boltzmann-Gibbs statistics. J. Stat. Phys. 52, 479–487 (1988)
Vidiella-Barranco, A.: Entanglement and nonextensive statistics. Phy. Lett. A 260, 335–339 (1999)
Tirnakli, U., Özeren, S.F., Büyükkiliç, F., Demirhan, D.: The effect of nonextensivity on the time development of quantum systems. Z. Phys. B Condens. Matter 104(2), 341–345 (1997)
Naudts, J.: Deformed exponentials and logarithms in generalized thermostatistics. Phys. A 316, 323–334 (2002)
Tsallis, C.: What are the numbers that experiments provide? Quim. Nova 17, 468–471 (1994)
Cerf, N.J.: Asymmetric quantum cloning in any dimension. Mod. Opt. 47, 187–209 (2000)
Durt, T., Du, J.: Characterization of low-cost one-to-two qubit cloning. Phys. Rev. A 69, 062316 (2004)
Uhlmann, A.: The transition probability in the state space of a *-algebra. Rep. Math. Phys. 9, 273–279 (1976)
Peres, A.: Separability criterion for density matrices. Phys. Rev. Lett. 77, 1413–1415 (1996)
Horodecki, M., Horodecki, P., Horodecki, R.: Separability of mixed states: necessary and sufficient conditions. Phys. Lett. A 223(1–2), 1–8 (1996)
Fan, H., Matsumoto, K., Wang, X.-B., Wadati, M.: Quantum cloning machines for equatorial qubits. Phys. Rev. A 65, 012304 (2001)
Rezakhani, A., Siadatnejad, S., Ghaderi, A.: Separability in asymmetric phase-covariant cloning. Phys. Lett. A 336(4–5), 278–289 (2005)
Scarani, V., Gisin, N.: Quantum key distribution between N partners: optimal eavesdropping and Bell’s inequalities. Phys. Rev. A 65, 012311 (2001)
Scarani, V., Iblisdir, S., Gisin, N., Acín, A.: Quantum cloning. Rev. Mod. Phys. 77, 1225–1256 (2005)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Boudjema, R., Hamici, AH., Hachemane, M. et al. Generalized asymmetric phase-covariant quantum cloning within a nonextensive approach. Quantum Inf Process 15, 551–563 (2016). https://doi.org/10.1007/s11128-015-1179-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11128-015-1179-6