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One-to-Many Economical Phase-Covariant Cloning and Telecloning of Qudits |
| WANG Xin-Wen1,2, SU Yu-Huan2, YANG Guo-Jian2 |
1Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008
2Department of Physics, Beijing Normal University, Beijing 100875
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| Cite this article: |
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WANG Xin-Wen, SU Yu-Huan, YANG Guo-Jian 2010 Chin. Phys. Lett. 27 100303 |
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Abstract We present explicit unitary transformations for realizing both symmetric and asymmetric one-to-many economical phase-covariant clonings of qudits. We also propose a corresponding telecloning scheme. It is shown that the fidelity of the telecloning with nonmaximally entangled states can be larger than that of the corresponding cloning. This implies that partially entangled states can be better than the maximally entangled states for our economical phase-covariant telecloning scheme.
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| Keywords:
03.67.-a
03.65.Ud
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Received: 25 March 2010
Published: 26 September 2010
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| PACS: |
03.67.-a
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(Quantum information)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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[1] Wootters W K and Zurek W H 1982 Nature 299 802
[2] Buzěk V and Hillery M 1996 Phys. Rev. A 54 1844
[3] Duan L M and Guo G C 1998 Phys. Rev. Lett. 80 4999
[4] Scarani V et al 2005 Rev. Mod. Phys. 77 1225
[5] Lamas-Linares A et al 2002 Science 296 712
[6] Zhao Z et al 2005 Phys. Rev. Lett. 95 030502
[7] Bartůšková L et al 2007 Phys. Rev. Lett. 99 120505
[8] Xu J S et al 2008 Phys. Rev. A 78 032322
[9] Galvão A and Hardy L 2000 Phys. Rev. A 62 022301
[10] Gao T, Yan F L and Wang Z X 2004 Chin. Phys. Lett. 21 995
[11] Lamoureux L P et al 2006 Phys. Rev. A 73 032304
[12] Xu F X et al 2009 Chin. Sci. Bull. 54 2991
[13] Shen Y, Hao L and Long G L 2010 Commun. Theor. Phys. 53 486
[14] Werner R F 1998 Phys. Rev. A 58 1827
[15] Navez P and Cerf N J 2003 Phys. Rev. A 68 032313
[16] Zhang W H et al 2007 Phys. Rev. A 75 044303
[17] Bruß D et al 2000 Phys. Rev. A 62 012302
[18] Fan H, Imai H, Matsumoto K and Wang X B 2003 Phys. Rev. A 67 022317
[19] Cerf N J 2000 Phys. Rev. Lett. 84 4497
[20] Iblisdir S et al 2005 Phys. Rev. A 72 042328
[21] Fan H, Matsumoto K, Wang X B and Wadati M 2001 Phys. Rev. A 65 012304
[22] D'Ariano G M and Macchiavello C 2003 Phys. Rev. A 67 042306
[23] Bruß D et al 1998 Phys. Rev. A 57 2368
[24] Murao M et al 1999 Phys. Rev. A 59 156
[25] Gu Y J et al 2002 Chin. Phys. Lett. 19 752
[26] Zheng S B 2003 Chin. Phys. Lett. 20 325
[27] Bennett C H et al 1993 Phys. Rev. Lett. 70 1895
[28] Ghiu I 2003 Phys. Rev. A 67 012323
[29] Wang Q, Li J X and Zeng H S 2008 Chin. Phys. Lett. 25 2770
[30] Murao M and Vedral V 2001 Phys. Rev. Lett. 86 352
[31] Yu Y F, Feng J and Zhan M S 2003 Phys. Rev. A 68 024303
[32] Chen Y H, Zhang D Y and Gao F 2009 Chin. Phys. Lett. 26 090302
[33] Niu C S and Griffiths R B 1999 Phys. Rev. A 60 2764
[34] Durt T and Du J F 2004 Phys. Rev. A 69 062316
[35] Zou X B, Dong Y L and Guo G C 2006 Phys. Lett. A 360 44
[36] Wang X W and Yang G J 2009 Phys. Rev. A 79 062315
[37] Du J F et al 2005 Phys. Rev. Lett. 94 040505
[38] Zhang W H et al 2007 Phys. Lett. A 360 726
[39] Durt T, Fiurášek J and Cerf N J 2005 Phys. Rev. A 72 052322
[40] Zhang W H et al 2007 Phys. Lett. A 369 112
[41] Buscemi F, D'Ariano G M and Macchiavello C 2005 Phys. Rev. A 71 042327
[42] Wang X W and Yang G J 2009 Phys. Rev. A 79 064306
[43] Chen L and Chen Y X 2006 Phys. Rev. A 74 062310
[44] Acín A, Cirac J I and Lewenstein M 2007 Nature Phys. 3 256
[45] Modławska J and Grudka A 2008 Phys. Rev. Lett. 100 110503
[46] Perseguers S et al 2008 Phys. Rev. A 77 022308
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