Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Tunneling through region of reduced conductivity
Reexamination Certificate
2007-12-11
2007-12-11
Purvis, Sue A. (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Thin active physical layer which is
Tunneling through region of reduced conductivity
C257S034000, C257S036000, C257S039000, C257SE39016, C257SE39019, C257SE39020
Reexamination Certificate
active
10407683
ABSTRACT:
The present invention involves a quantum computing structure, comprising: one or more logical qubits, which is encoded into a plurality of superconducting qubits; and each of the logical qubits comprises at least one operating qubit and at least one ancilla qubit. Also provided is a method of quantum computing, comprising: performing encoded quantum computing operations with logical qubits that are encoded into superconducting operating qubits and superconducting ancilla qubits. The present invention further involves a method of error correction for a quantum computing structure comprising: presenting a plurality of logical qubits, each of which comprises an operating physical qubit and an ancilla physical qubit, wherein the logical states of the plurality of logical qubits are formed from a tensor product of the states of the operating and ancilla qubits; and wherein the states of the ancilla physical qubits are suppressed; and applying strong pulses to the grouping of logical qubits.
REFERENCES:
patent: 5768297 (1998-06-01), Shor
patent: 5917322 (1999-06-01), Gershenfeld et al.
patent: 6317766 (2001-11-01), Grover
patent: 6456994 (2002-09-01), Tucci
patent: 6459097 (2002-10-01), Zagoskin
patent: 6504172 (2003-01-01), Zagoskin et al.
patent: 6563310 (2003-05-01), Zagoskin
patent: 6614047 (2003-09-01), Tzalenchuk et al.
patent: 6800837 (2004-10-01), Ichimura et al.
patent: 2002/0106084 (2002-08-01), Azuma et al.
patent: 2002/0117655 (2002-08-01), Amin et al.
patent: 2002/0117656 (2002-08-01), Amin et al.
patent: 2002/0121636 (2002-09-01), Amin et al.
patent: 2002/0188578 (2002-12-01), Amin et al.
patent: 2003/0023651 (2003-01-01), Whaley et al.
patent: 2003/0055513 (2003-03-01), Raussendorf et al.
patent: 2004/0077503 (2004-04-01), Blais et al.
patent: 2004/0119061 (2004-06-01), Wu et al.
Aharonov, D., and M. Ben-Or, 1996, “Fault Tolerant Quantum Computation with Constant Error,” ArXiv.org preprint server: quant-ph/9611025.
Bacon, D., J. Kempe, D.A. Lidar, and K.B. Whaley, 2000, “Universal Fault-Tolerant Quantum Computation on Decoherence-Free Subspaces,” Phys. Rev. Lett. 85, pp. 1758-1761.
Bacon, D., J. Kempe, D.P. DiVincenzo, D.A. Lidar, and K.B. Whaley, 2001, “Encoded Universality in Physical Implementations of a Quantum Computer,” ArXiv.org preprint server: quant-ph/0102140.
Barenco, A., C.H.Bennett, R. Cleve, D.P. DiVincenzo, N. Margolus, P. Shor, T. Sleator, J. Smolin, and H. Weinfurter, 1995, “Elementary gates for quantum computation,” Phys. Rev. A 52, pp. 3457-3467.
Benjamin, S.C., 2001, “Simple pulses for universal quantum computation with a Heisenberg ABAB chain,” Phys. Rev. A 64, 054303.
Blais, A., and A.M. Zagoskin, 2000, “Operation of universal gates in a solid-state quantum computer based on clean Josephson junctions between d-wave superconductors,” Phys. Rev. A 61, 042308.
Blatter, G., V.B. Geshkenbein, and L.V. Ioffe, 2001, “Design aspects of superconducting-phase quantum bits,” Phys. Rev. B 63, 174511.
Boykin, P.O., T. Mor, M. Pulver, V. Roychowdhury, and F. Vatan, 1999, “On Universal and Fault-Tolerant Quantum Computing,” ArXiv.org preprint server: quant-ph/9906054, last accessed on Jul. 15, 2004.
Byrd, M.S., and D.A. Lidar, 2001, “Bang-Bang operations from a geometric perspective,” ArXiv.org preprint server: quant-ph/0110121.
Byrd, M.S., and D.A. Lidar, 2001, “Combined encoding, recoupling, and decoupling solution to problems of decoherence and design in solid-state quantum computing,” ArXiv.org preprint server: quant-ph/0112054.
DiVincenzo, D.P., 2000, “The Physical Implementation of Quantum Computation”, ArXiv.org preprint server: quant-ph/0002077.
DiVincenzo, D.P., D.Bacon, J.Kempe, G.Burkard, and K.B. Whaley, 2000, “Universal quantum computation with the exchange interaction,” Nature 408, pp. 339-342.
Duan, L.-M., and G. Guo, 1999, “Pulse controlled noise suppressed quantum computation,” ArXiv.org preprint server: quant-ph/9807072.
Il'ichev, E., M. Grajcar, R. Hlubina, R.P.J. IJsselsteijn, H.E. Hoenig, H.-G. Meyer, A. Golubov, M.H.S. Amin, A.M. Zagoskin, A.N. Omelyanchouk, and M.Yu. Kupriyanov, 2001, “Degenerate Ground State in a Mesoscopic YBa2Cu3O7−xGrain Boundary Josephson Junction”, Phys. Rev. Lett. 86, pp. 5369-5372.
Kempe, J., D. Bacon, D.P. DiVincenzo, and K.B. Whaley, 2001, “Encoded universality from a single physical interaction,” ArXiv.org preprint server: quant-ph/0112013.
Kempe, J., D. Bacon, D.A. Lidar, and K.B. Whaley, 2001, “Theory of decoherence-free fault-tolerant universal quantum computation,” Phys. Rev. A 63, 042307.
Kempe, J., and K.B. Whaley, 2001,“Exact gate-sequences for universal quantum computation using the XY-interaction alone,”ArXiv.org preprint server: quant-ph/0112014.
Knill, E., R. Laflamme, and W. Zurek, 1998, “Resilient Quantum Computation,” Science pp. 279, pp. 342-345.
Leung, D.W., I.L. Chuang, F. Yamaguchi, and Y. Yamamoto, 2000, “Efficient implementation of coupled logic gates for quantum computation,” Phys. Rev. A 61, 042310.
Levy, J., 2001, “Universal quantum computation with spin-1/2 pairs and Heisenberg exchange,” ArXiv.org preprint server: quant-ph/0101057.
Lidar, D.A., D.Bacon, J. Kempe, and K.B. Whaley, 2001, “Decoherence-free subspaces for multiple-qubit errors. II. Universal, fault-tolerant quantum computation,” Phys. Rev. A 63, 022307.
Lidar, D.A., I.L. Chuang, and K.B. Whaley, 1998, “Decoherence-Free Subspaces for Quantum Computation,” Phys. Rev. Lett. 81, pp. 2594-2597.
Lidar, D.A., and L.-A. Wu, 2002, “Reducing Constraints on Quantum Computer Design by Encoded Selective Recoupling,” Phys. Rev. Lett. 88, 017905.
Makhlin, Y., G.Schön, and A. Shnirman, 2001, “Quantum-state engineering with Josephson-junction devices,” Rev. Mod. Phys. 73 , pp. 357-401.
Mooij, J.E., T.P. Orlando, L. Levitov, L. Tian, C.H. van der Wal, and S. Lloyd, 1999, “Josephson persistent-current qubit”, Science, vol. 285, pp. 1036-1039.
Nicoletti, S., H. Moriceau, J.C. Villegier, D. Chateigner, B. Bourgeaux, C. Cabanel and J.Y. Laval, 1996, “Bi-epitaxial YBCO grain boundary Josephson junctions on SrTiO3and sapphire substrates,” Physica C 269, pp. 255-267.
Orlando, T.P, J.E. Mooij, L.Tian, C.H. van der Wal, L.S. Levitov, S.Lloyd, and J.J.Mazo, 1999, “Superconducting persistent-current qubit,”Phys. Rev. B 60, 15398.
Protopopescu, V., R. Perez, C.D 'Helon, and J.Schmulen, 2002, “Robust control of decoherence in realistic quantum gates,” ArXiv.org preprint server: quant-ph/0202141.
Steane, A.M., 1999, “Efficient fault-tolerant quantum computing,” ArXiv.org preprint server: quant-ph/9809054.
Tafuri, F.F., F. Carillo, F. Lombardi, F. Miletto Granozio, F. Ricci, U. Scotti di Uccio, A. Barone, G. Testa and E. Sarnelli and J.R. Kirtley, 2000, “Feasibility of biepitaxial YBa2Cu3O7−xJosephson junctions for fundamental studies and potential circuit implementation,” Phys. Rev. B 62, pp. 14431-14438.
Vala, J., and K.B. Whaley, 2002, “Encoded universality for generalized anisotropic exchange Hamiltonians,” ArXiv.org preprint server: quant-ph/0204016.
Viola, L., 2001, “On quantum control via encoded dynamical decoupling,” ArXiv.org preprint server: quant-ph/0111167.
Viola, L., E. Knill, and S. Lloyd, 1999, “Dynamical Decoupling of Open Quantum Systems,” Phys. Rev. Lett. 82, pp. 2417-2421.
Viola, L., E. Knill, and S. Lloyd, 1999, “Universal Control of Decoupled Quantum Systems,” Phys. Rev. Lett. 83, pp. 4888-4891.
Viola, L., E. Knill, and S. Lloyd, 2000, “Dynamical Generation of Noiseless Quantum Subsystems,” Phys. Rev. Lett. 85, pp. 3520-3523.
Viola, L., and S. Lloyd, 1998, “Dynamical suppression of decoherence in two-state quantum systems,ȁ
Blais Alexandre
Lidar Daniel
Wu Lian-Ao
D-Wave Systems Inc.
Erdem Fazli
Purvis Sue A.
Seed IP Law Group PLLC
The University of Toronto
LandOfFree
Encoding and error suppression for superconducting quantum... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Encoding and error suppression for superconducting quantum..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoding and error suppression for superconducting quantum... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3878323