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The topic about how to realize quantum computation has aroused great interest of many people. The small quantum device including Josephson junction (SQUID, e.g.) is a very promising physical system to realize quantum computation. In this paper, through the discussion about the Cooper-pair number-phase quantization scheme of the circuit system coupled by SQUID and mesoscopic LC resonator, and through the rational modulation of the parameter, we derive the J-C model of this coupled circuit under the condition of two-level approximation. According to on this model, we propose a protocol which can realize the transfer of quantum information. According to this protocol, we can carry out the transfer of the charge qubits between the two SQUIDs by utilizing the mesoscopic LC resonator as the data bus.
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Keywords:
- Josephson junction /
- charge qubit /
- J-C model /
- quantum communication
[1] Pashkin Y A, Yamamoto T, Astafiev O, Nakamura Y, Averin D V,Tsai J S 2003 Nature 421 823
[2] Makhlin Y, Schön G, Shnirman A 1999 Nature 398 305
[3] Shor W, Vandersypen L M K, Steffen M 2001 Nature 414 883
[4] Duan L M, Kuzmich A, Kimble H J 2003 Phys. Rev. A 67 032305
[5] Gulde S, Riebe M, Lancaster G P T, Becher C, Eschner J, HäffnerH, Schmidt-Kaler F, Chuang I L, Blatt R 2003 Nature 421 48
[6] Ciric J I, Zoller P 1995 Phys. Rev. Lett. 74 4091
[7] Turchette Q A, Hood C J, Lange W, Mabuchi H, Kimble H J 1995Phys. Rev. Lett. 75 4710
[8] Josephson B D 1962 Phys. Lett. 1 251
[9] Vourdas A 1994 Phys. Rev. B 49 12040
[10] Vourdas A 1996 J. Mod. Opt. 43 2105
[11] Nakamura Y, Pashkin Y A, Tsai J S 1999 Nature 398 786
[12] Ioffe L B, Geshkenbein V B, Feigelman M V, Fauchére A L, BlatterG 1999 Nature 398 679
[13] Mun D K, Sam Y C 2007 Phys. Rev. B 75 134514
[14] Zagoskin A M, Ashhab S, Johansson J R, Nori F 2006 Phys. Rev.Lett. 97 077001
[15] Bouchiat V 1999 J. Superconduct. 12 789
[16] Shirman A, Schön G, Hermon Z 1997 Phys. Rev. Lett. 79 2371
[17] You J Q, Lam C H, Zheng H Z 2001 Phys. Rev. B 63 180501
[18] Wu S H, Hu M L, Li J, Hui X Q 2011 Acta Phys. Sin. 60 010302(in Chinese) [吴世海, 胡明亮, 李季, 惠小强 2011 物理学报 60 010302]
[19] Liang B L, Wang J S, Fan H Y, Meng X G 2008 Chin. Phys. Lett.25 3753
[20] Liang B L, Wang J S, Meng X G, Su J 2010 Chin. Phys. B 19010315
[21] Wu C, Fang M F, Xiao X, Li Y L, Cao S 2011 Chin. Phys. B 20020305
[22] Li Z X, Zou J, Cai J F, Shao B 2006 Acta Phys. Sin. 55 1580 (inChinese) [李照鑫, 邹 健, 蔡金芳, 邵彬 2006 物理学报 55 1580]
[23] Liu Y X, Sun C P, Nori F 2006 Phys. Rev. A 74 052321
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[1] Pashkin Y A, Yamamoto T, Astafiev O, Nakamura Y, Averin D V,Tsai J S 2003 Nature 421 823
[2] Makhlin Y, Schön G, Shnirman A 1999 Nature 398 305
[3] Shor W, Vandersypen L M K, Steffen M 2001 Nature 414 883
[4] Duan L M, Kuzmich A, Kimble H J 2003 Phys. Rev. A 67 032305
[5] Gulde S, Riebe M, Lancaster G P T, Becher C, Eschner J, HäffnerH, Schmidt-Kaler F, Chuang I L, Blatt R 2003 Nature 421 48
[6] Ciric J I, Zoller P 1995 Phys. Rev. Lett. 74 4091
[7] Turchette Q A, Hood C J, Lange W, Mabuchi H, Kimble H J 1995Phys. Rev. Lett. 75 4710
[8] Josephson B D 1962 Phys. Lett. 1 251
[9] Vourdas A 1994 Phys. Rev. B 49 12040
[10] Vourdas A 1996 J. Mod. Opt. 43 2105
[11] Nakamura Y, Pashkin Y A, Tsai J S 1999 Nature 398 786
[12] Ioffe L B, Geshkenbein V B, Feigelman M V, Fauchére A L, BlatterG 1999 Nature 398 679
[13] Mun D K, Sam Y C 2007 Phys. Rev. B 75 134514
[14] Zagoskin A M, Ashhab S, Johansson J R, Nori F 2006 Phys. Rev.Lett. 97 077001
[15] Bouchiat V 1999 J. Superconduct. 12 789
[16] Shirman A, Schön G, Hermon Z 1997 Phys. Rev. Lett. 79 2371
[17] You J Q, Lam C H, Zheng H Z 2001 Phys. Rev. B 63 180501
[18] Wu S H, Hu M L, Li J, Hui X Q 2011 Acta Phys. Sin. 60 010302(in Chinese) [吴世海, 胡明亮, 李季, 惠小强 2011 物理学报 60 010302]
[19] Liang B L, Wang J S, Fan H Y, Meng X G 2008 Chin. Phys. Lett.25 3753
[20] Liang B L, Wang J S, Meng X G, Su J 2010 Chin. Phys. B 19010315
[21] Wu C, Fang M F, Xiao X, Li Y L, Cao S 2011 Chin. Phys. B 20020305
[22] Li Z X, Zou J, Cai J F, Shao B 2006 Acta Phys. Sin. 55 1580 (inChinese) [李照鑫, 邹 健, 蔡金芳, 邵彬 2006 物理学报 55 1580]
[23] Liu Y X, Sun C P, Nori F 2006 Phys. Rev. A 74 052321
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