Papers from A.N. Korotkov's group supported by NSA/ARDA/DTO/IARPA under ARO grants W911NF-08-1-0336 (July 2008 - July 2010) and W911NF-04-1-0204 (June 2004 - May 2009)


2010

31. Optimal conditions for Bell-inequality violation in the presence of decoherence and errors
A.G. Kofman
Quantum Inf. Process., 11, 269 (2012) PDF

30. Analysis of a tunable coupler for superconducting phase qubits
R.A. Pinto, A.N. Korotkov, M.R. Geller, V.S. Shumeiko, and J.M. Martinis
Phys. Rev. B 82, 104522 (2010) PDF

29. Qubit state monitoring by measurement of three complementary observables
R. Ruskov, A.N. Korotkov, and K. Molmer
Phys. Rev. Lett. 105, 100506 (2010) PDF

28. Decoherence suppression by uncollapsing
A.N. Korotkov and K. Keane
Phys. Rev. A 81, 040103(R) (2010) PDF

27. Switching Exponent Scaling near Bifurcation Points for Non-Gaussian Noise
L. Billings, I.B. Schwartz, M. McCrary, A.N. Korotkov, and M.I. Dykman
Phys. Rev. Lett. 104, 140601 (2010) PDF

26. Uncollapsing the wavefunction by undoing quantum measurements
A.N. Jordan and A.N. Korotkov
Contemporary Physics 51, 125 (2010) PDF

25. Dynamics revealed by correlations of time-distributed weak measurements of a single spin
R.-B. Liu, Shu-Hong Fung, Hok-Kin Fung, A. N. Korotkov, and L. J. Sham
New J. Phys. 12, 013018 (2010) PDF

2009

24. Two-qubit decoherence mechanisms revealed via quantum process tomography
A.G. Kofman and A.N. Korotkov
Phys. Rev. A 80, 042103 (2009) PDF

23. Special issue on quantum computing with superconducting qubits (editorial paper)
A.N. Korotkov
Quantum Inf. Process. 8, 51 (2009) PDF

2008

22. Quantum efficiency of binary-outcome detectors of solid-state qubits
A.N. Korotkov
Phys. Rev. B 78, 174512 (2008) PDF

21. Uncollapsing of a quantum state in a superconducting phase qubit
N. Katz, M. Neeley, M. Ansmann, R.C. Bialczak, M. Hofheinz, E. Lucero, A. O'Connell, H. Wang, A.N. Cleland and J.M. Martinis, and A.N. Korotkov
Phys. Rev. Lett. 101, 200401 (2008) PDF

20. Bell inequality violation versus entanglement in presence of local decoherence
A.G. Kofman and A.N. Korotkov
Phys. Rev. A 77, 052329 (2008) PDF

19. Analysis of Bell inequality violation in superconducting phase qubits
A.G. Kofman and A.N. Korotkov
Phys. Rev. B 77, 104502 (2008) PDF

2007

18. Coherence of a Josephson phase qubit under partial-collapse measurement
L.P. Pryadko and A.N. Korotkov
Phys. Rev. B 76, 100503(R) (2007) PDF

17. Crossover of phase qubit dynamics in presence of a negative-result weak measurement
R. Ruskov, A. Mizel, and A.N. Korotkov
Phys. Rev. B 75, 220501(R) (2007) PDF

16. Theoretical analysis of measurement crosstalk for coupled Josephson phase qubits
A.G. Kofman, Q. Zhang, J.M. Martinis, and A.N. Korotkov
Phys. Rev. B 75, 014524 (2007) PDF

2006

15. Analysis of measurement errors for a superconducting phase qubit
Q. Zhang, A.G. Kofman, J.M. Martinis, and A.N. Korotkov
Phys. Rev. B 74, 214518 (2006) PDF

14. Undoing a weak quantum measurement of a solid-state qubit
A.N. Korotkov and A.N. Jordan
Phys. Rev. Lett. 97, 166805 (2006) PDF

13. Qubit feedback and control with kicked quantum nondemolition measurements: a quantum Bayesian analysis
A.N.Jordan and A.N. Korotkov
Phys. Rev. B 74, 085307 (2006) PDF

12. Leggett-Garg inequality with a kicked quantum pump
A.N. Jordan, A.N. Korotkov, and M. Buttiker
Phys. Rev. Lett. 97, 026805 (2006) PDF

11. Coherent state evolution in a superconducting qubit from partial-collapse measurement
N. Katz, M. Ansmann, R.C. Bialczak, E. Lucero, R. McDermott, M. Neeley, M. Steffen, E.M. Weig, A.N. Cleland, J.M. Martinis, and A.N. Korotkov
Science 312, 1498 (2006) Link to the paper

10. Signatures of quantum behavior in single-qubit weak measurements
R. Ruskov, A.N. Korotkov, and A. Mizel
Phys. Rev. Lett. 96, 200404 (2006) PDF

9. Quantum Zeno stabilization in weak continuous measurement of two qubits
R. Ruskov, A.N. Korotkov, and A. Mizel
Phys. Rev. B 73, 085317 (2006) PDF

8. Non-ideal quantum feedback of a solid-state qubit
Q. Zhang, R. Ruskov, A.N. Korotkov
Journal of Physics: Conference Series 38, 163-166 (2006) PDF

2005

7. Continuous quantum feedback of coherent oscillations in a solid-state qubit
Q. Zhang, R. Ruskov, and A.N. Korotkov
Phys. Rev. B 72, 245322 (2005) PDF

6. Squeezing of a nanomechanical resonator by quantum nondemolition measurement and feedback
R. Ruskov, K. Schwab, and A.N. Korotkov
Phys. Rev. B 71, 235407 (2005) PDF

5. Simple quantum feedback of a solid-state qubit
A.N. Korotkov
Phys. Rev. B 71, 201305(R) (2005) PDF

4. Quantum feedback of a double-dot qubit
A.N. Korotkov
Microelectronics Journal 36, 253 (2005) PDF

3. Comment on "Continuous quantum measurement: inelastic tunneling and lack of current oscillations"
D.V. Averin and A.N. Korotkov
Phys. Rev. Lett. 94, 069701 (2005) PDF

2. Simple quadrature-based quantum feedback of a solid-state qubit
A.N. Korotkov
Proceedings of SPIE 5846, 46-56 (2005) PDF

1. Quantum nondemolition squeezing of a nanomechanical resonator
R. Ruskov, K. Schwab, and A. N. Korotkov
IEEE Trans. Nanotechnology 4, 132 (2005) PDF