Quantum oscillations in two coupled charge qubits

Nature

Volumn 421, Issue 6925, 2003, Pages 823-826

  Pashkin, Yu A ^a,d   Yamamoto, T ^a,b   Astafiev, O ^a   Nakamura, Y ^a,b   Averin, D V ^c   Tsai, J S ^a,b  

^a INST OF PHYS AND CHEMICAL RESEARCH   (Japan)

^b NEC CORPORATION   (Japan)

^c STONY BROOK UNIVERSITY   (United States)

^d LEBEDEV PHYSICAL INSTITUTE   (Russian Federation)

Author keywords

[No Author keywords available]

Indexed keywords

OSCILLATIONS; QUANTUM ELECTRONICS; RESONANT TUNNELING; SPECTRUM ANALYSIS; SUPERCONDUCTIVITY;

QUANTUM COMPUTERS;

QUANTUM THEORY;

COPPER;

COUPLING; OSCILLATION;

ARTICLE; COMPUTER; CONDUCTOR; OSCILLATION; PRIORITY JOURNAL; QUANTUM CHEMISTRY; QUANTUM MECHANICS; SOLID STATE;

EID: 0037456462     PISSN: 00280836     EISSN: None     Source Type: Journal    
DOI: 10.1038/nature01365     Document Type: Article

References (16)

1. Nielsen, M. A. & Chuang, I. L. Quantum Computation and Quantum Information (Cambridge Univ. Press, Cambridge, 2000).
2. Clarke R. G. (ed.) Experimental Implementation of Quantum Computation (Rinton, Princeton, 2001).
3. Averin, D. V. Quantum computing and quantum measurement with mesoscopic Josephson junctions. Fortschr. Phys. 48, 1055-1074 (2000).
4. Makhlin, Y., Schön, G. & Shnirman, A. Quantum state engineering with Josephson-junction devices. Rev. Mod. Phys. 73, 357-400 (2001).
5. Nakamura, Y., Pashkin, Yu. A. & Tsai, J. S. Coherent control of macroscopic quantum states in a single-Cooper-pair box. Nature 398, 786-788 (1999).
6. Vion, D. et al. Manipulating the quantum state of an electrical circuit. Science 296, 886-889 (2002).
7. Yu, Y., Han, S., Chu, X., Chu, S.-I. & Wang, Z. Coherent temporal oscillations of macroscopic quantum states in a Josephson junction. Science 296, 889-892 (2002).
8. Martinis, J. M., Nam, S., Aumentado, J. & Urbina, C. Rabi oscillations in a large Josephson-junction qubit. Phys. Rev. Lett 89, 117901 (2002).
9. Friedman, J. R., Patel, V., Chen, W., Toltygo, S. K. & Lukens, J. E. Quantum superposition of distinct macroscopic states. Nature 406, 43-46 (2000).
10. Van der Wal, C. H. et al. Quantum superposition of macroscopic persistent-current states. Science 290, 773-777 (2000).
11. Bouchiat, V., Vion, D., Joyez, P., Esteve, D. & Devoret, M. H. Quantum coherence with a single Cooper pair. Phys. Scripta T 76, 165-170 (1998).
12. Flees, D. J., Han, S. & Lukens, J. E. Interband transitions and band gap measurements in Bloch transistors. Phys. Rev. Lett. 78, 4817-4820 (1997).
13. Nakamura, Y., Chen, C. D. & Tsai, J. S. Spectroscopy of energy-level splitting between two macroscopic quantum states of charge coherently superposed by Josephson coupling. Phys. Rev. Lett. 79, 2328-2331 (1997).
14. Esteve, D. in Single Charge Tunneling (eds Grabert, H. & Devoret, M. H.) 109-137 (Plenum, New York, 1992).
15. Fulton, T. A., Gammel, P. L., Bishop, D. J., Dunkleberger, L. N. & Dolan. G. J. Observation of combined Josephson and charging effects in small tunnel junction circuits. Phys. Rev. Lett. 63, 1307-1310 (1989).
16. Bennett, C. H., Bernstein, H. J., Popescu, S. & Schumacher, B. Concentrating partial entanglement by local operations. Phys. Rev. A 53, 2046-2052 (1996).