Abstract
In this paper, we discuss the coherence for duality quantum computers under taking different unitary operators acting on pure states. Firstly, for arbitrary unitary operators, we give some general quantitative results of the coherence of output states. Secondly, for incoherence unitary operators, we obtain that the coherence of output states satisfies an inequality. In addition, we also give a conclusion of the coherence of output states under unitary permutation operators.
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Streltsov, A., Adesso, G., Plenio, M.B.: Colloquium : arXiv:quant-ph/1609.02439 (2017)
Aberg, J. arXiv:quant-ph/0612146 (2006)
Baumgratz, T., Cramer, M., Plenio, M.B.: Phys. Rev. Lett. 113(14), 140401 (2014)
Streltsov, A., Singh, U., Dhar, H.S., et al.: Phys. Rev. Lett. 115(2), 020403 (2015)
Yuan, X., Zhou, H., Cao, Z., et al.: Phys. Rev. A 92(2), 022124 (2015)
Peng, Y., Fan, H. arXiv:quant-ph/1703.09381 (2017)
Shao, L.H., Xi, Z., Fan, H., et al. arXiv:quant-ph/14108327v1 (2015)
Wang, L.L., Chen, Z.L., Wang, W.H., et al.: Int. J. Theor. Phys. 57(3), 771–779 (2018)
Napoli, C., Bromley, T.R., Cianciaruso, M., et al.: Phys. Rev. Lett. 116 (15), 150502 (2016)
Piani, M., Cianciaruso, M., Bromley, T.R., et al.: Phys. Rev. A 93, 042107 (2016)
Bu, K., Singh, U., Fei, S.M., et al.: Phys. Rev. Lett. 119, 150405 (2017)
Long, G.L.: Commun. Theor. Phys. 45(5), 825–843 (2006)
Gudder, S.: Quantum Inf. Process 6, 37–48 (2007)
Wang, Y.Q., Du, H.K., Dou, Y.N.: Int. J. Theor. Phys. 47(9), 2268–2278 (2008)
Long, G.L.: Quantum Inf. Process 6(1), 49–54 (2007)
Gudder, S.: Int. J. Theor. Phys. 47(1), 268–279 (2008)
Long, G.L.: Int. J. Theor. Phys. 50(4), 1305–1318 (2011)
Long, G.L., Liu, Y., Wang, C.: Commun. Theor. Phys. 51(1), 65 (2009)
Cao, H.X., Chen, Z.L., Guo, Z.H., et al.: Sci. China-Phys. Mech. Astron. 55(12), 2452–2462 (2012)
Cao, H.X., Long, G.L., Guo, Z.H., et al.: Int. J. Theor. Phys. 52(6), 1751–1767 (2013)
Chen, L., Cao, H.X., Meng, H.X.: Quantum Inf. Process 11, 4351–4360 (2015)
Liu, Y., Cui, J.X.: Quantum Inf. Process 59(19), 2298–2301 (2014)
Wei, S.J., Long, G.L.: Quantum Inf. Process 15(3), 1–24 (2016)
Wei, S.J., Dong, R., Long, G.L.: Sci. Rep. 6, 30727 (2016)
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The author would like to thank anonymous referees for his/her valuable comments and suggestions which helped to improve the presentation of this paper.
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This research was partially supported by the National Natural Science Foundation of China(No.11571213, 11601300).
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Zhang, Q., Chen, Z., Yuan, F. et al. A Note of Coherence for Duality Quantum Computers Acting on Pure States. Int J Theor Phys 57, 3795–3807 (2018). https://doi.org/10.1007/s10773-018-3892-2
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DOI: https://doi.org/10.1007/s10773-018-3892-2