Abstract
We propose a reliable analytical method to evaluate the non-classical correlations based on linear entropy for an arbitrary qudit–qubit quantum state. The linear entropy is used to overcome the difficulty of the maximization of the classical correlations encountered when the von Neumann entropy is used in determining quantum discord. The quantum discord based on linear entropy is employed to derive the amount of quantum correlations in a qutrit–qubit mixed spin system in the thermal equilibrium at temperature T. We investigate also the situation when the system is embedded in an external magnetic field. The obtained amount of quantum discord is then compared with the measurement-induced disturbance (MID) and logarithmic negativity. The analysis shows that both QD and MID are more robust than entanglement. Besides, QD and MID can be exploited to determine the critical points of quantum phase transitions in the system.
Similar content being viewed by others
References
Nielsen, M.A., Chuang, I.L.: Quantum Computation and Quantum Information. Cambridge University Press, Cambridge (2000)
Horodecki, R., Horodecki, P., Horodecki, M., Horodecki, K.: Quantum entanglement. Rev. Mod. Phys. 81, 865 (2009)
Bennett, C.H., Brassard, G., Crepeau, C., Jozsa, R., Peres, A., Wooters, W.K.: Teleporting an unknown quantum state via dual classical and Einstein–Podolsky–Rosen channels. Phys. Rev. Lett. 70, 1895–1899 (1993)
Jennewein, T., Simon, C., Weihs, G., Weinfurter, H., Zeilinger, A.: Quantum cryptography with entangled photons. Phys. Rev. Lett. 84, 4729–4732 (2000)
Bennett, C.H., Wiesner, S.J.: Communication via one-and two-particle operators on Einstein–Podolsky–Rosen states. Phys. Rev. Lett. 69, 2881–2884 (1992)
Murao, M., Jonathan, D., Plenio, M.B., Vedral, V.: Quantum telecloning and multiparticle entanglement. Phys, Rev. A. 59, 156–161 (1999)
Datta, A., Flammia, A.T., Caves, C.M.: Quantum telecloning and multiparticle entanglement. Phys. Rev. A 72, 042316 (2005)
Datta, A., Vidal, G.: Role of entanglement and correlations in mixed-state quantum computation. Phys. Rev. A 75, 042310 (2007)
Datta, A., Shaji, A., Caves, C.M.: Quantum discord and the power of one qubit. Phys. Rev. Lett. 100, 050502 (2008)
Lanyon, B.P., Barbieri, M., Almeida, M.P., White, A.G.: Experimental quantum computing without entanglement. Phys. Rev. Lett. 101, 200501 (2008)
Knill, E., Laflamme, R.: Power of one bit of quantum information. Phys. Rev. Lett. 81, 5672 (1998)
Bennett, C.H., et al.: Phys: Quantum nonlocality without entanglement. Rev. A 59, 1070 (1999)
Oppenheim, J., Horodecki, M., Horodecki, P., Horodecki, R.: Thermodynamical approach to quantifying quantum correlations. Phys. Rev. Lett. 89, 180402 (2002)
Ferraro, A., Cavalcanti, D., Cucchietti, F.M., Acín, A.: Almost all quantum states have nonclassical correlations. Phys. Rev. A. 81, 052318 (2010)
Ollivier, H., Zurek, W.H.: Quantum discord: a measure of the quantumness of correlations. Phys. Rev. Lett. 88, 017901 (2001)
Henderson, L., Vedral, V.: Classical, quantum and total correlations. J. Phys. A 34, 6899 (2001)
Shabani, A., Lidar, D.A.: Vanishing quantum discord is necessary and sufficient for completely positive maps. Phys. Rev. Lett 102, 100402 (2009)
Galve, F., Giorgi, G.L., Zambrini, R.: Maximally discordant mixed states of two qubits. Phys. Rev. A 83, 012102 (2011)
Girolami, D., Adesso, G.: Quantum discord for general two-qubit states: analytical progress. Phys. Rev. A. 83, 052108 (2011)
Ali, M.: Quantum discord for a two-parameter class of states in \(2\otimes d\) quantum systems. J. Phys. A 43, 495303 (2010)
Daoud, M., Ahl Laamara, R.: Quantum discord for multipartite coherent states interpolating between Werner and Greenberger-Horne-Zeilinger states. Int. J. Quantum Inform. 10, 1250060 (2012)
Daoud, M., Ahl Laamara, R.: Geometric measure of pairwise quantum discord for superpositions of multipartite generalized coherent states. Phys. Lett. A 376, 2361 (2012)
Girolami, D., Tufarelli, T., Adesso, G.: Characterizing nonclassical correlations via local quantum uncertainty. Phys. Rev. Lett. 110, 240402 (2013)
Sen, A., Bhar, A., Sarkar, D.: Local quantum uncertainty and bounds on quantumness for orthogonally invariant class of states. Quantum Inf. Process 14, 269–285 (2015)
Horodecki, M., Horodecki, P., Horodecki, R., Oppenheim, J., Sen, A., Sen, U., Synak-Radtke, B.: Local versus nonlocal information in quantum-information theory: formalism and phenomena. Phys. Rev. A 71, 062307 (2005)
Luo, S.: Using measurement-induced disturbance to characterize correlations as classical or quantum. Phys. Rev. A 77, 022301 (2008)
Luo, S., Fu, S.: Measurement-induced nonlocality. Phys. Rev. Lett. 106, 120401 (2011)
Osborne, T.J., Verstraete, F.: General monogamy inequality for bipartite qubit entanglement. Phys. Rev. Lett. 96, 220503 (2006)
Ma, Z., Chen, Z., Fanchini, F.F., Fei, S.M.: Quantum discord for \(d\otimes 2\) systems. Sci. Rep. 5, 10262 (2015)
Zurek, W.H.: Decoherence, einselection, and the quantum origins of the classical. Rev. Mod. Phys. 75, 715 (2003)
Parkinson, J.B., Farnell, D.J.J.: An introduction to quantum spin systems, vol. 816. Springer, Berlin (2010)
Xue, P., Zhan, X., Bian, Z.: Experimental linear-optics simulation of ground-state of an Ising spin chain. Sci. Rep. 7, 2183 (2017)
Hälg, M., Lorenz, W.E.A., Povarov, K.Y., Månsson, M., Skourski, Y., Zheludev, A.: Quantum spin chains with frustration due to Dzyaloshinskii–Moriya interactions. Phys. Rev. B. 90, 174413 (2014)
Duan, L.M., Demler, E., Lukin, M.D.: Controlling spin exchange interactions of ultracold atoms in optical lattices. Phys. Rev. Lett. 91, 090402 (2003)
Schollwöck, U., Richter, J., Farnell, D.J.J., Bishop, R.F.: Quantum Magnetism, vol. 645. Springer, Berlin (2004)
Werlang, T., Trippe, C., Ribeiro, G.A.P., Rigolin, G.: Quantum correlations in spin chains at finite temperatures and quantum phase transitions. Phys. Rev. Lett. 105, 095702 (2010)
Sarandy, M.S.: Classical correlation and quantum discord in critical systems. Phys. Rev. A 80, 022108 (2009)
Dillenschneider, R.: Quantum discord and quantum phase transition in spin chains. Phys. Rev. B 78, 224413 (2008)
Vidal, G., Werner, R.F.: Computable measure of entanglement. Phys. Rev. A 65, 032314 (2002)
Shaukat, M.I., Slaoui, A., Terças, H., Daoud, M.: Phonon-mediated quantum discord in dark solitons. (2019). arXiv:1903.06627
Zhang, G.F., Hou, Y.C., Ji, A.L.: Measurement-induced disturbance and thermal negativity of qutrit–qubit mixed spin chain. Solid State Commun. 151, 790 (2011)
Li, J.Q., Liang, J.Q.: Quantum and classical correlations in a classical dephasing environment. Phys. Lett. A 375, 1496 (2011)
Li, L.S., Tao, Y.H., Nan, H., Xu, H.: Super-quantum correlation for \(SU(2)\) invariant state in \(4\otimes 2\) system. Quantum Inf. Process. 17, 86 (2018)
Khedif, Y., Daoud, M., Sayouty, E.: Thermal quantum correlations in a two-qubit Heisenberg XXZ spin-chain under an inhomogeneous magnetic field. Phys. Scr. 94, 125106 (2019)
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Benabdallah, F., Slaoui, A. & Daoud, M. Quantum discord based on linear entropy and thermal negativity of qutrit–qubit mixed spin chain under the influence of external magnetic field. Quantum Inf Process 19, 252 (2020). https://doi.org/10.1007/s11128-020-02754-x
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11128-020-02754-x