Evidence for entangled states of two coupled flux qubits

Physical Review Letters

Volumn 93, Issue 3, 2004, Pages

  Izmalkov, A ^a,b   Grajcar, M ^a,c   Il'ichev, E ^a   Wagner, Th ^a   Meyer, H G ^a   Smirnov, A Yu ^d   Amin, M H S ^d   Van Den Brink, Alec Maassen ^d   Zagoskin, A M ^d,e  

^a LEIBNIZ INSTITUTE OF PHOTONIC TECHNOLOGY   (Germany)

^b NATIONAL RESEARCH NUCLEAR UNIVERSITY MEPHI   (Russian Federation)

^c Comenius University ^*  (Slovakia)

^d D WAVE SYSTEMS INC   (Canada)

^e UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ALUMINUM; ANTIFERROMAGNETISM; APPROXIMATION THEORY; CURRENT VOLTAGE CHARACTERISTICS; EIGENVALUES AND EIGENFUNCTIONS; ELECTRON BEAMS; ELECTRON TUNNELING; HAMILTONIANS; JOSEPHSON JUNCTION DEVICES; LITHOGRAPHY; MAGNETIC FLUX; MAGNETIC SUSCEPTIBILITY; MATRIX ALGEBRA; SPECTROSCOPIC ANALYSIS; SQUIDS;

IMPEDANCE MEASUREMENT TECHNIQUE (IMT); QUANTUM COMPUTERS; QUANTUM REGISTERS; QUBITS;

QUANTUM THEORY;

EID: 4344706597     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.93.037003     Document Type: Article

References (24)

1. M. A. Nielsen and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University Press, Cambridge, 2000).
2. Y. Nakamura, Yu. A. Pashkin, and J. S. Tsai, Nature (London) 398, 786 (1999).
3. J. R. Friedman et al., Nature (London) 406, 43 (2000).
4. C. H. van der Wal et al., Science 290, 773 (2000).
5. J. M. Martinis et al., Phys. Rev. Lett. 89, 117901 (2002).
6. D. Vion et al., Science 296, 886 (2002).
7. Yu. A. Pashkin et al., Nature (London) 421, 823 (2003).
8. A. J. Berkley et al., Science 300, 1548 (2003).
9. J. E. Mooij et al., Science 285, 1036 (1999).
10. J. B. Majer et al., cond-mat/0308192.
11. Ya. S. Greenberg et al. Phys. Rev. B 66, 214525 (2002).
12. E. Il'ichev et al., Appl. Phys. Lett. 80, 4184 (2002).
13. A. Izmalkov et al., Europhys. Lett. 65, 844 (2004).
14. E. Il'ichev et al., Phys. Rev. Lett. 91, 097906 (2003).
15. M. Grajcar et al., Phys. Rev. B 69, 060501(R) (2004).
16. T = 1850 itself is correct.
17. A. Maassen van den Brink, cond-mat/0310425.
18. U. Weiss, Quantum Dissipative Systems (World Scientific, Singapore, 1999), 2nd ed.
19. A. Yu. Smirnov, Phys. Rev. B 68, 134514 (2003).
20. K. Blum, Density Matrix Theory and Applications (Plenum Press, New York, 1981).
21. A. Yu. Smirnov, cond-mat/0312635.
22. dc2 can be ascribed to qubit a because it is closest to the bias wire (Fig. 1).
23. W. K. Wootters, Phys. Rev. Lett. 80, 2245 (1998).
24. T. Yu and J. H. Eberly, Phys. Rev. B 66, 193306 (2002).