Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Tunneling through region of reduced conductivity
Reexamination Certificate
2005-01-04
2005-01-04
Flynn, Nathan J. (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Thin active physical layer which is
Tunneling through region of reduced conductivity
C257S009000, C257S031000, C257S663000, C257S200000
Reexamination Certificate
active
06838694
ABSTRACT:
A superconducting quantum-bit device based on Josephson junction has a charge as a first principal degree of freedom assigned to writing and a phase as a second principal degree of freedom assigned to reading. The device comprises a Cooper-pair box comprising first and second Josephson junctions defining a charge island of the Cooper-pair box closing up onto a superconducting loop. A read circuit comprises a read Josephson junction JLinserted into the superconducting loop and having a Josephson energy Ejat least 50 times greater than the Josephson energy of each of the first and second Josephson junctions.
REFERENCES:
patent: 6605822 (2003-08-01), Blais et al.
patent: WO 0150534 (2001-07-01), None
patent: WO 0215290 (2002-02-01), None
A. Cottet, et al., “Implementation of a combined charge-phase quantum bit in a superconducting circuit”, Physica C, vol. 367. No. 1-4, Feb. 15, 2002, pp. 197-203.
A. B. Zorin, “Cooper-pair qubit and Cooper-pair electrometer in one device”, Physica C, vol. 368, No. 1-4, Mar. 1, 2002, pp. 284-288.
“Quantum Coherence with a Single Cooper Pair”, V. Bouchiat, et al., Physica Scripta, T76, (1998), pp. 165-170.
“Coherent Control of Macroscopic Quantum States in a Single-Cooper-Pair Box”, Y. Nakamura, et al., NEC Fundamental Research Laboratories, Nature, vol. 398, Apr. 29, 1999, pp. 786-788.
“Josephson Persistent-Current Qubit”, J.E. Mooij, et al., Science, vol. 285, Aug. 13, 1999, pp 1036-1039.
“Quantum Superposition of Macroscopic Persistent-Current States”, C. van der Wal, et al., Science, vol. 290, Oct. 27, 2000, pp. 773-777.
Aassime Abdelhahim
Cottet Audrey
Devoret Michel
Esteve Daniel
Joyez Philippe
Commissariat a l''Energie Atomique
Flynn Nathan J.
Weingarten, Schurgin, Gagenbin & Lebovici LLP
Wilson Scott R.
LandOfFree
Superconducting quantum-bit device based on Josephson junctions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Superconducting quantum-bit device based on Josephson junctions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting quantum-bit device based on Josephson junctions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3392893