| GENERAL |
|
|
|
|
Quantum Information Transfer in Circuit QED with Landau–Zener Tunneling |
| LI Jun-Wang, WU Chun-Wang, DAI Hong-Yi**
|
| Department of Physics, College of Science, National University of Defense Technology, Changsha 410073 |
|
| Cite this article: |
|
LI Jun-Wang, WU Chun-Wang, DAI Hong-Yi 2011 Chin. Phys. Lett. 28 090302 |
|
|
|
|
Abstract We propose a scheme to implement quantum information transfer between Cooper-pair boxes (CPBs) in a circuit quantum electrodynamic (QED) system with Landau–Zener tunneling. The system consists of two CPB qubits and a one-dimensional transmission line resonator (TLR). By analytically solving the eigenequation and numerically calculating the transition probability, the results show the quantum state transfer from one qubit to another via a fast adiabatic passage. The coupling mechanism is robust against decoherence effects.
|
| Keywords:
03.67.+a
85.25.-j
42.50.Pq
|
|
|
Received: 17 April 2011
Published: 30 August 2011
|
|
|
|
|
|
|
|
[1] You J Q and Nori F 2005 Phys. Today 58 42
[2] You J Q, Tsai J S and Nori F 2003 Phys. Rev. B 68 024510
[3] Ithier G et al 2005 Phys. Rev. B 72 134519
[4] Wallraff A et al 2005 Phys. Rev. Lett. 95 060501
[5] Majer J B et al 2005 Phys. Rev. Lett. 94 090501
[6] Plastina F and Falci G 2003 Phys. Rev. B 67 224514
[7] Yang C P, Chu S I and Han S 2003 Phys. Rev. A 67 042311
[8] You J Q and Nori F 2003 Phys. Rev. B 68 064509
[9] Blais A et al 2004 Phys. Rev. A 69 062320
[10] Liu Y X et al 2005 Phys. Rev. Lett. 95 087001
[11] Wu Q Q et al 2008 Chin. Phys. Lett. 25 1179
[12] Wei L F et al 2008 Phys. Rev. Lett. 100 113601
[13] Wu L A et al 2009 Phys. Rev. A 80 042315
[14] Li P B et al 2009 Phys. Rev. A 79 042339
[15] Feng Z B et al 2010 Opt. Commun. 283 1975
[16] Johansson J et al 2009 Phys. Rev. B 80 012507
[17] Shevchenko S N, Ashhab S and Nori F 2010 Phys. Rep. 492 1
[18] Zheng S B and Guo G C 2000 Phys. Rev. Lett. 85 2392
[19] Fink J M et al 2008 Nature 454 315
[20] Ng H T and Nori F 2010 Phys. Rev. A 82 042317
[21] Day P K et al 2003 Nature 425 817
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
