Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Tunneling through region of reduced conductivity
Reexamination Certificate
2011-04-26
2011-04-26
Nguyen, Thinh T (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Thin active physical layer which is
Tunneling through region of reduced conductivity
C257S030000, C257SE39012, C324S652000
Reexamination Certificate
active
07932514
ABSTRACT:
A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.
REFERENCES:
patent: 7135701 (2006-11-01), Amin et al.
patent: 7230266 (2007-06-01), Hilton et al.
patent: 7418283 (2008-08-01), Amin
patent: 2005/0224784 (2005-10-01), Amin et al.
Simon Haykin, Communication Systems, Third Edition, (John Wiley & Sons, 1994, ISBN 9971-51-170-3).
D.P. Divincenzo, “The Physical Inplementation of Quantum Computation”, Fortschritte der Physik, vol. 48, pp. 771-783, (2000).
P. Day et al., “A Superconducting Detector Suitable for Use in Large Arrays”, Nature, vol. 425, pp. 817-821, (2003).
I. Chiorescu et al., “Coherence Quantum Dynamics of a Superconducting Flux Qubit”, Science, vol. 299, pp. 1869-1871 (Mar. 2003).
M. Muck, C. Welzel, and J. Clarke, “Superconducting Quantum Interface Device Amplifiers At Gigahertz Frequencies”, Applied Physics Letters, vol. 82, No. 19, pp. 3266-3268 (May 2003).
R.W. Simmonds et al., “Decoherence in Josephson Phase Qubits From Junction Resonators”, Physical Review Letters, vol. 93, No. 7, pp. 077003 (Aug. 2004).
K.B. Cooper et al., “Observation of Quantum Oscillations between a Josephson Phase Qubit and a Microscopic Resonator Using Fast Readout”, Physical Review Letters, vol. 93, No. 18, pp. 180401, (Oct. 2004).
J. Martinis et al., “Decoherence in Josephson Qubits From Dielectric Loss”, Physical Review Letters, pp. 210503 (2005).
M. Steffen et al., “State Tomography of Capacitively Shunted Phase Qubits With High Fidelity”, Physical Review Letters, pp. 050502 (Aug. 2006).
K.D. Osborn et al., “Frequency-Tunable Josephson Junction Resonator”, IEEE Transactions on Applied Superconductivity, vol. 17, issue 2, pp. 166-168 (Jun. 2007).
J. Majer, “Coupling Superconducting Qubits Via a Cavity Bus”, Nature, vol. 449, pp. 443 (2007).
R.H. Koch et al., “Experimental Demonstration of an Oscillator Stabilized Josephson Flux Qubit”, Physical Review Letters, pp. 127001-1-127001-4, (Mar. 2006).
Farinelli Matthew J.
Keefe George A.
Kumar Shwetank
Steffen Matthias
Alexanian Vazken
Cantor & Colburn LLP
International Business Machines - Corporation
Nguyen Thinh T
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