Alexander N. Korotkov
Recent papers (some older papers here)

Violating the modified Helstrom bound with nonprojective measurements
J. Dressel, T. A. Brun, and A.N. Korotkov
arXiv:1410.0096 PDF

Compressed sensing quantum process tomography for superconducting quantum gates
A.V. Rodionov, A. Veitia, R. Barends, J. Kelly, D. Sank, J. Wenner, J.M. Martinis, R. L. Kosut, and A.N. Korotkov
Phys. Rev. B 90, 144504 (2014) PDF

Rolling quantum dice with a superconducting qubit
R. Barends, J. Kelly, A. Veitia, A. Megrant, A.G. Fowler, B. Campbell, Y. Chen, Z. Chen, B. Chiaro, A. Dunsworth, I.-C. Hoi, E. Jeffrey, C. Neill, P.J.J. O'Malley, J. Mutus, C. Quintana, P. Roushan, D. Sank, J. Wenner, T.C. White, A.N. Korotkov, A.N. Cleland, and John M. Martinis
Phys. Rev. A 90, 030303(R) (2014) PDF Suppl.

Superconducting quantum circuits at the surface code threshold for fault tolerance
R. Barends, J. Kelly, A. Megrant, A. Veitia, D. Sank, E. Jeffrey, T.C. White, J. Mutus, A.G. Fowler, B. Campbell, Y. Chen, Z. Chen, B. Chiaro, A. Dunsworth, C. Neill, P. O'Malley, P. Roushan, A. Vainsencher, J. Wenner, A.N. Korotkov, A.N. Cleland, and John M. Martinis
Nature 508, 500 (2014) Abstract, PDF (Nature), arXiv version
(see also IEEE spectrum, International Business Times, Science News, Christian Science Monitor, Techfragments)

Observation of measurement-induced entanglement and quantum trajectories of remote superconducting qubits
N. Roch, M.E. Schwartz, F. Motzoi, C. Macklin, R. Vijay, A.W. Eddins, A.N. Korotkov, K.B. Whaley, M. Sarovar, and I. Siddiqi
Phys. Rev. Lett. 112, 170501 (2014) PDF Suppl. (Editor's Suggestion)
(see also Physics Viewpoint article)

Purcell effect with microwave drive: suppression of qubit relaxation rate
E.A. Sete, J.M. Gambetta, and A.N. Korotkov
Phys. Rev. B 89, 104516 (2014) PDF

Implementing generalized measurements with superconducting qubits
J. Dressel, T.A. Brun, and A.N. Korotkov
Phys. Rev. A 90, 032302 (2014) PDF

Catching time-reversed microwave coherent state photons with 99.4% absorption efficiency
J. Wenner, Yi Yin, Yu Chen, R. Barends, B. Chiaro, E. Jeffrey, J. Kelly, A. Megrant, J.Y. Mutus, C. Neill, P.J.J. O'Malley, P. Roushan, D. Sank, A. Vainsencher, T.C. White, A.N. Korotkov, A.N. Cleland, and J.M. Martinis
Phys. Rev. Lett. 112, 210501 (2014) PDF Suppl.

Error matrix in quantum process tomography
A.N. Korotkov
arXiv:1309.6405 PDF

Quantum Bayesian approach to circuit QED measurement
A.N. Korotkov
in Quantum machines: Measurement and control of engineered quantum systems; Lecture notes of the Les Houches Summer School (Session 96, July 2011), Ch. 17, p. 533 PDF (Oxford Univ. Press, 2014 Book Website); arXiv:1111.4016 PDF

Avoiding loopholes with hybrid Bell-Leggett-Garg inequalities
J. Dressel and A.N. Korotkov
Phys. Rev. A 89, 012125 (2014) PDF

Reducing the impact of intrinsic dissipation in a superconducting circuit by quantum error detection
Y.P. Zhong, Z.L. Wang, J.M. Martinis, A.N. Cleland, A.N. Korotkov, and H. Wang
Nature Comm. 5, 3135 (2014) Abstract, PDF (Nature Comm.), Suppl., arXiv version

2013

Catch-Disperse-Release readout for superconducting qubits
E.A. Sete, A. Galiautdinov, E. Mlinar, J.M. Martinis, and A.N. Korotkov
Phys. Rev. Lett. 110, 210501 (2013) PDF Suppl.

Book review: Fluctualting nonlinear oscillators (ed. M.I. Dykman)
A.N. Korotkov
Contemporary Physics 54, 113 (2013) PDF

High-fidelity controlled-Z gate for resonator-based superconducting quantum computers
J. Ghosh, A. Galiautdinov, Z. Zhou, A.N. Korotkov, J.M. Martinis, and M.R. Geller
Phys. Rev. A 87, 022309 (2013) PDF

Catch and release of microwave photon states
Y. Yin, Y. Chen, D. Sank, P.J.J. O'Malley, T.C. White, R. Barends, J. Kelly, E. Lucero, M. Mariantoni, A. Megrant, C. Neill, A. Vainsencher, J. Wenner, A.N. Korotkov, A.N. Cleland, and J.M. Martinis
Phys. Rev. Lett. 110, 107001 (2013) PDF Suppl. (Editor's Suggestion)
(see also Physics Viewpoint article)

2012

Stabilizing Rabi oscillations in a superconducting qubit using quantum feedback
R. Vijay, C. Macklin, D.H. Slichter, S.J. Weber, K.W. Murch, R. Naik, A.N. Korotkov, and I. Siddiqi
Nature 490, 77 (2012) Abstract, PDF (Nature), Suppl., arXiv version
(see also Nature News & Views)

Simplified quantum error detection and correction for superconducting qubits
K. Keane and A.N. Korotkov
Phys. Rev. A 86, 012333 (2012) PDF

Entanglement preservation: the Sleeping Beauty approach
A.N. Korotkov
Nature Phys. 8, 107 (2012) PDF

Resonator--zero-qubit architecture for superconducting qubits
A. Galiautdninov, A.N. Korotkov, and J.M. Martinis
Phys. Rev. A 85, 042321 (2012) PDF

2011

Implementing the quantum von Neumann architecture with superconducting circuits
M. Mariantoni, H. Wang, T. Yamamoto, M. Neeley, R.C. Bialczak, Y. Chen, M. Lenander, E. Lucero, A.D. O’Connell, D. Sank, M. Weides, J. Wenner, Y. Yin, J. Zhao, A.N. Korotkov, A.N. Cleland, and J.M. Martinis
Science 334, 61 (2011) Link to the paper, PDF
(see also IEEE Spectrum, Science Perspective, Forbes, Physics World, Physics World Top 10 Breakthroughs)

Flying microwave qubits with nearly perfect transfer efficiency
A.N. Korotkov
Phys. Rev. B 84, 014510 (2011) PDF

Persistent Rabi oscillations probed via low-frequency noise correlation
A.N. Korotkov
Phys. Rev. B 83, 041406(R) (2011) PDF

2010

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

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

Experimental violation of a Bell’s inequality in time with weak measurement
A. Palacios-Laloy, F. Mallet, F. Nguyen, P. Bertet, D. Vion, D. Esteve, and A.N. Korotkov
Nature Phys. 6, 442 (2010) Link to the paper
(see also News&Views article and press releases from IRAMIS and CEA )

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

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

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

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

2009

Regulation and tracking of two-level quantum systems using measurement feedback
M. Yanagisawa, A.N. Korotkov, and M.R. James
Proc. 48th IEEE Conference on Decision and Control (CDC’09), 3821 PDF

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

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

2008

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

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
(see also Nature News article and Physics Viewpoint article)

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

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

2007

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

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

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

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

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

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

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

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
(see also New Scientists article and PhysOrg.com article)

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

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

A numerical study of transport and shot noise in 2D hopping
Y. A. Kinkhabwala, V. A. Sverdlov, A. N. Korotkov, and K. K. Likharev
J. Phys.: Condens. Matter 18 , 1999 (2006). PDF

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

2005

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

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

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

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

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

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

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

Efficient algorithm for current spectral density calculation in single-electron tunneling and hopping
V. A. Sverdlov, Y. A. Kinkhabwala, and A.N. Korotkov
cond-mat/0504208 PDF

2004

Mesoscopic quadratic quantum measurements
W. Mao, D.V. Averin, R. Ruskov, and A.N. Korotkov
Phys. Rev. Lett. 93, 056803 (2004) PDF

Electron emission from carbon black-based field emitters including diesel engine exhaust
H. Busta, D. Boldridge, R. Myers, G. Snider, A. Korotkov, E. Edwards, and A. Feinerman
J. Vac. Sci. Technol. B 22, 1261-1265 (2004) PDF

Numerical analysis of radio-frequency single-electron transistor operation
V.O. Turin and A.N. Korotkov
Phys. Rev. B 69, 195310 (2004) PDF

Maintaining coherent oscillations in a solid-state qubit via continuous quantum feedback control
R. Ruskov, Q. Zhang, and A.N. Korotkov
Proc. of SPIE, v. 5436, 162 (2004) pdf

2003

Single electron memory devices: Towards background charge insensitive operation
K. K. Yadavalli, A. O. Orlov, G. L. Snider, and A. N. Korotkov
J. Vac. Sci. Technol. B 21, 2860 (2003) PDF

Noisy quantum measurement of solid-state qubits
A.N. Korotkov
Proceedings of SPIE 5115, 386-400 (2003) PDF

Analysis of the radio-frequency single-electron transistor with large quality factor
V.O. Turin and A.N. Korotkov
Appl. Phys. Lett. 83, 2898 (2003) PDF

Entanglement of solid-state qubits by measurement
R. Ruskov and A.N. Korotkov
Phys. Rev. B 67, 241305(R) (2003) PDF

Nonideal quantum detectors in Bayesian formalism
A.N. Korotkov
Phys. Rev. B 67, 235408 (2003) PDF

Spectrum of qubit oscillations from Bloch equations
R. Ruskov and A.N. Korotkov
Phys. Rev. B 67, 075303 (2003) PDF

Noisy quantum measurement of solid-state qubits: Bayesian approach
A.N. Korotkov
in: Quantum Noise in Mesoscopic Physics, edited by Yu.V. Nazarov (Kluwer, Netherlands, 2003), pp. 205-228 PDF

2002

Analysis of integrated single-electron memory operation
A.N. Korotkov
J. Appl. Phys. 92, 7291 (2002) PDF

Quantum feedback control of a solid-state qubit
R. Ruskov and A.N. Korotkov
Phys. Rev. B 66, 041401(R) (2002) PDF

Continuous measurement of entangled qubits
A.N. Korotkov
Phys. Rev. A 65, 052304 (2002) PDF

2001

Correlated quantum measurement of a solid-state qubit
A.N. Korotkov
Phys. Rev. B 64, 193407 (2001) PDF

Continuous weak measurement of quantum coherent oscillations
A.N. Korotkov and D.V. Averin
Phys. Rev. B 64, 165310 (2001) PDF

Single-electron soliton avalanches in tunnel-junction arrays
V. A. Sverdlov, D. M. Kaplan, A. N. Korotkov, and K. K. Likharev
Phys. Rev. B 64, 041302(R) (2001) PDF

Noise in the single electron transistor and controlled Josephson current in ballistic three terminal devices
B. Starmark, E. Hurfeld, T. Henning, P. Delsing, A. N. Korotkov, R. S. Shaikhaidarov, T. Akazaki, E. Toyoda, and H. Takayanagi
Physica C 352, 101 (2001) pdf

Selective quantum evolution of a qubit state due to continuous quantum measurement
A.N. Korotkov
Phys. Rev. B 63, 115403 (2001) PDF

Shot noise suppression at 2D hopping
V. A. Sverdlov, A. N. Korotkov, and K. K. Likharev
Phys. Rev. B 63, 081302(R) (2001) PDF

Output spectrum of a detector measuring quantum oscillations
A. N. Korotkov
Phys. Rev. B 63, 085312 (2001) PDF