Abstract
We develop a method for efficiently calculating non-Gaussianity of quantum states in Wigner function representation based on the sine metric. In contradistinction to the known non-Gaussianity measures, we seek the corresponding reference Gaussian counterpart via the cumulant-expansion techniques of quantum state. We analyze this quantity for some non-Gaussian quantum states, which can not be well detected or quantified by other non-Gaussianity measures such as the degree of Gaussianity, the Hilbert-Schmidt metric and the relative entropy metric, thereby providing a good measure to quantify a genuine non-Gaussian state.
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C.H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres, W.K. Wootters, Phys. Rev. Lett. 70, 1895 (1993).
R. Raussendorf, H.J. Briegel, Phys. Rev. Lett. 86, 5188 (2001).
N. Gisin, G. Ribordy, W. Tittel, H. Zbinden, Rev. Mod. Phys. 74, 145 (2002).
T. Opatrný, G. Kurizki, D.G. Welsch, Phys. Rev. A 61, 032302 (2000).
S. Olivares, M.G.A. Paris, R. Bonifacio, Phys. Rev. A 67, 032314 (2003).
F. Dell’Anno, S. De Siena, L. Albano, F. Illuminati, Phys. Rev. A 76, 022301 (2007).
A. Mandilara, N.J. Cerf, Phys. Rev. A 86, 030102 (2012).
L. Lachman, R. Filip, Phys. Rev. A 88, 063841 (2013).
C. Hughes, M.G. Genoni, T. Tufarelli, M.G.A. Paris, M.S. Kim, Phys. Rev. A 90, 013810 (2014).
J. Park, J. Zhang, J. Lee, S.W. Ji, M. Um, D. Lv, K. Kim, H. Nha, Phys. Rev. Lett. 114, 190402 (2015).
J. Park, H. Nha, Phys. Rev. A 92, 062134 (2015).
A. Hertz, E. Karpov, A. Mandilara, N.J. Cerf, Phys. Rev. A 93, 032330 (2016).
I. Happ, M.A. Efremov, H. Nha, W.P. Schleich, New J. Phys. 20, 023046 (2018).
I. Happ, M.A. Efremov, H. Nha, W.P. Schleich, New J. Phys. 20, 039601 (2018).
M.G. Genoni, M.G.A. Paris, K. Banaszek, Phys. Rev. A 76, 042327 (2007).
M.G. Genoni, M.G.A. Paris, Phys. Rev. A 82, 052341 (2010).
J.S. Ivan, M.S. Kumar, R. Simon, Quantum Inf. Process. 11, 853 (2012).
M.G. Genoni, M.G.A. Paris, K. Banaszek, Phys. Rev. A 78, 060303 (2008).
P. Marian, T.A. Marian, Phys. Rev. A 88, 012322 (2013).
J. Park, J. Lee, K. Baek, S.W. Ji, H. Nha, Phys. Rev. A 100, 012333 (2019).
I. Ghiu, P. Marian, T.A. Marian, Phys. Scr. T153, 014028 (2013).
M.S. Figueira, M.E. Foglio, G.G. Martinez, Phys. Rev. B 50, 17933 (1994).
W. Kutzelnigg, D. Mukherjee, J. Chem. Phys. 110, 2800 (1999).
A. Rodriguez, C. Tsallis, J. Math. Phys. 51, 073301 (2010).
D. Bures, Trans. Am. Math. Soc. 135, 199 (1969).
P. Marian, T.A. Marian, H. Scutaru, Phys. Rev. A 68, 062309 (2003).
P. Marian, T.A. Marian, Phys. Rev. A 77, 062319 (2008).
P. Marian, T.A. Marian, H. Scutaru, Phys. Rev. Lett. 88, 153601 (2002).
D. Spehner, M. Orszag, New J. Phys. 15, 103001 (2013).
A. Gilchrist, N.K. Langford, M.A. Nielsen, Phys. Rev. A 71, 062310 (2005).
J.A. Miszczak, Z. Puchala, P. Horodecki, A. Uhlmann, K. Zczkowski, Quantum Inf. Comput. 9, 0103 (2009).
GhS Paraoanu, H. Scutaru, Phys. Rev. A 61, 022306 (2000).
V. Dodonov, I. Malkin, V. Man’ko, Physica 72, 597 (1974).
V. Bužek, A. Vidiella-Barranco, P.L. Knight, Phys. Rev. A 45, 6570 (1992).
Y.J. Xia, G.C. Guo, Phys. Lett. A 136, 281 (1989).
F.L. Li, H.R. Li, J.X. Zhang, S.Y. Zhu, Phys. Rev. A 66, 024302 (2002).
Y.W. Cheong, H. Kim, H.W. Lee, Phys. Rev. A 70, 032327 (2004).
M. Heid, N. Lütkenhaus, Phys. Rev. A 76, 022313 (2007).
W. Vogel, J. Sperling, Phys. Rev. A 89, 052302 (2014).
H. Jeong, N.B. An, Phys. Rev. A 74, 022104 (2006).
F. Albarelli, M.G. Genoni, M.G.A. Paris, A. Ferraro, Phys. Rev. A 98, 052350 (2018).
G.S. Agarwal, K. Tara, Phys. Rev. A 46, 485 (1992).
A. Zavatta, V. Parigi, M. Bellini, Phys. Rev. A 75, 052106 (2007).
R. Filip, L. Mišta Jr, Phys. Rev. Lett. 106, 200401 (2011).
M. Ježek, I. Straka, M. Mičuda, M. Dušek, J. Fiurášek, R. Filip, Phys. Rev. Lett. 107, 213602(2011) .
M. Barbieri, N. Spagnolo, M.G. Genoni, F. Ferreyrol, R. Blandino, M.G.A. Paris, P. Grangier, R. Tualle-Brouri, Phys. Rev. A 82, 063833 (2010).
A. Allevi, S. Olivares, M. Bondani, Opt. Exp. 20, 24850 (2012).
A. Allevi, S. Olivares, M. Bondani, Int. J. Quantum Inf. 10, 1241006 (2012).
D.E. Browne, J. Eisert, S. Scheel, M.B. Plenio, Phys. Rev. A 67, 062320 (2003).
C. Oh, C. Lee, L. Banchi, S.Y. Lee, C. Rockstuhl, H. Jeong, Phys. Rev. A 100, 012323 (2019).
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Xiang, SH., Zhao, YJ., Xiang, C. et al. A method for efficiently estimating non-Gaussianity of continuous-variable quantum states. Eur. Phys. J. D 74, 16 (2020). https://doi.org/10.1140/epjd/e2019-100421-6
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DOI: https://doi.org/10.1140/epjd/e2019-100421-6