Quantum non-demolition measurement of a superconducting two-level system

Nature Physics

Volumn 3, Issue 2, 2007, Pages 119-123

  Lupascu A ^a,c   Saito, S ^a,b   Picot, T ^a   De Groot, P C ^a   Harmans, C J P M ^a   Mooij, J E ^a  

^a DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b Kashino Diverse Brain Research Laboratory of NTT Communication Science Laboratories   (Japan)

^c ECOLE NORMALE SUPÉRIEURE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

DEMOLITION; ERROR CORRECTION; QUBITS; SUPERCONDUCTING RESONATORS;

CONSECUTIVE MEASUREMENTS; EXTRACTION OF INFORMATION; HYSTERETIC BEHAVIOUR; PROJECTIVE MEASUREMENT; QUANTUM NON DEMOLITION; QUANTUM NONDEMOLITION MEASUREMENTS; QUANTUM-INFORMATION PROCESSING; SUPERCONDUCTING QUBITS;

QUANTUM OPTICS;

EID: 33846785510     PISSN: 17452473     EISSN: 17452481     Source Type: Journal    
DOI: 10.1038/nphys509     Document Type: Article

References (23)

1. Braginsky, V. B. & Khalili, F. Ya. Quantum Measurement (Cambridge Univ. Press, Cambridge, 1992).
2. Braginsky, V. B. & Khalili, F. Ya. Quantum nondemolition measurements: the route from toys to tools. Rev. Mod. Phys. 68, 1-11 (1996).
3. Grangier, P., Levenson, J. A. & Poizat, J. P. Quantum non-demolition measurements in optics. Nature 396, 537-542 (1998).
4. Nogues, G. et al. Seeing a single photon without destroying it. Nature 400, 239-242 (1999).
5. Geremia, J. M., Stockton, J. K. & Mabuchi, H. Real-time quantum feedback control of atomic spin-squeezing. Science 304, 270-273 (2004).
6. Peil, S. & Gabrielse, G. Observing the quantum limit of an electron cyclotron: QND measurements of quantum jumps between Fock states. Phys. Rev. Lett. 83, 1287-1290 (1999).
7. Makhlin, Y., Schön, G. & Shnirman, A. Quantum-state engineering with Josephson-junction devices. Rev. Mod. Phys. 73, 357-400 (2001).
8. Devoret, M. H., Wallraff, A. & Martinis, J. M. Superconducting qubits: A short review. Preprint at 〈http://arxiv.org/abs/cond-mat/ 0411174〉 (2004).
9. Yamamoto, T. et al. Demonstration of conditional gate operation using superconducting charge qubits. Nature 425, 941-944 (2003).
10. Steffen, M. et al. Measurement of the entanglement of two superconducting qubits via state tomography. Science 313, 1423-1425 (2006).
11. Wallraff, A. et al. Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics. Nature 431, 162-167 (2004).
12. Chiorescu, I. et al. Coherent dynamics of a flux qubit coupled to a harmonic oscillator. Nature 431, 159-162 (2004).
13. Johansson J. et al. Vacuum Rabi oscillations in a macroscopic superconducting qubit LC oscillator system. Phys. Rev. Lett. 96, 127006 (2006).
14. Astafiev, O., Pashkin, Yu. A., Yamamoto, T., Nakamura, Y. & Tsai, J. S. Single-shot measurement of the Josephson charge qubit. Phys. Rev. B 69, 180507(R) (2004).
15. Lupaşcu, A., Driessen, E. F. C., Roschier, L., Harmans, C. J. P. M. & Mooij, J. E. High-contrast dispersive readout of a superconducting flux qubit using a nonlinear resonator. Phys. Rev. Lett. 96, 127003 (2006).
16. Steffen, M. et al. State tomography of capacitively shunted phase qubits with high fidelity. Phys. Rev. Lett. 97, 050502 (2006).
17. Lupaşcu, A., Verwijs, C. J. M., Scheuten, R. N., Harmans, C. J. P. M. & Mooij, J. E. Non-destructive readout of a superconducting flux qubit. Phys. Rev. Lett. 93, 177006 (2004).
18. Siddiqi, I. et al. Dispersive measurements of superconducting qubit coherence with a fast latching readout. Phys. Rev. B 73, 054510 (2006).
19. Mooij, J. E. et al. Josephson persistent-current qubit. Science 307, 1036-1039 (1999).
20. Chiorescu, L, Nakamura, Y., Harmans, C. J. P. M. & Mooij, I. E. Coherent quantum dynamics of a superconducting flux qubit. Science 299, 1869-1871 (2003).
21. Dykman, M. I. & Krivoglaz, M. A. Fluctuations in nonlinear systems near bifurcations corresponding to the appearance of new stable states. Physica A 104, 480-494 (1980).
22. Siddiqi, I. et al. RF-driven Josephson bifurcation amplifier for quantum measurement. Phys. Rev. Lett. 93, 207002 (2004).
23. Katz, N. et al. Coherent state evolution in a superconducting qubit from partial-collapse measurement. Science 312, 1498-1500 (2006).