Quantum bit variable coupling method, quantum computing...

Details Quantum bit variable coupling method, quantum computing... Quantum bit variable coupling method, quantum computing...

2007-08-29

2010-12-07

Zweizig, Jeffrey S (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Superconductive device

Reexamination Certificate

active

07847615

ABSTRACT:
In a quantum computing circuit forming a superconductive loop including a plurality of Josephson junctions, first and second superconductive magnetic flux quantum bit element (101, 102) are biased at a half-quantum magnetic flux, and have mutually different characteristic frequencies. A coupling superconductive magnetic flux quantum bit clement element (103) is located between the first and second superconductive magnetic flux quantum bit elements (101, 102) to perform parametric variable control between the element (101, 102) by supplying a microwave magnetic field pulse which is equal to the frequency difference between the elements (101, 102).

REFERENCES:
patent: 7332738 (2008-02-01), Blais et al.
patent: 2000-068495 (2000-03-01), None
patent: 2003-067181 (2003-03-01), None
patent: 2005-302847 (2005-10-01), None
patent: 2006-165812 (2006-06-01), None
J. E. Mooij, et al., “Josephson Persistent-Current Qubit,” Science, Aug. 13, 1999, pp. 1036-1039, vol. 285.
J. B. Majer, et al., “Spectroscopy on Two Coupled Superconducting Flux Qubits,” Physical Review Letters, Mar. 11, 2005, pp. 090501-1-090501-4, vol. 94.
M. Grajcar, et al., “Direct Josephson coupling between superconducting flux qubits,” Physical Review B, 2005, pp. 020503-1-020503-4, vol. 72.
Timur V. Filippov, et al., “Tunable Transformer for Qubits Based on Flux States,” IEEE Transactions on Applied Superconductivity, Jun. 2003, pp. 1005-1008, vol. 13, No. 2.
C. Cosmelli, et al., “Controllable Flux Coupling for the Integration of Flux Qubits,” arXiv:cond-mat/0403690v1, Mar. 29, 2004, pp. 1-10.
B. L. T. Plourde, et al., “Entangling flux qubits with a bipolar dynamic inductance,” Physical Review B, 2004, pp. 140501-1-140501-4, vol. 70.
P. Bertet, et al., “Dephasing of a Superconducting Qubit Induced by a Photon Noise,” Physical Review Letters, Dec. 16, 2005, pp. 257002-1-257002-4, vol. 95.
P. Bertet, et al., “Parametric coupling for superconducting qubits,” Physical Review B, 2006, pp. 064512-1-064512-6, vol. 73.

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