Three-qubit Grover’s algorithm using superconducting quantum interference devices in cavity-QED

Three-qubit Grover’s algorithm using superconducting quantum interference devices in cavity-QED We present a scheme for the implementation of three-qubit Grover’s algorithm using four-level superconducting quantum interference devices (SQUIDs) coupled to a superconducting resonator. The scheme is based on resonant, off-resonant interaction of the cavity field with SQUIDs and application of classical microwave pulses. We show that adjustment of SQUID level spacings during the gate operations, adiabatic passage, and second-order detuning are not required that leads to faster implementation. We also show that the marked state can be searched with high fidelity even in the presence of unwanted off-resonant interactions, level decay, and cavity dissipation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Three-qubit Grover’s algorithm using superconducting quantum interference devices in cavity-QED

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-013-0624-7
Publisher site
See Article on Publisher Site

Abstract

We present a scheme for the implementation of three-qubit Grover’s algorithm using four-level superconducting quantum interference devices (SQUIDs) coupled to a superconducting resonator. The scheme is based on resonant, off-resonant interaction of the cavity field with SQUIDs and application of classical microwave pulses. We show that adjustment of SQUID level spacings during the gate operations, adiabatic passage, and second-order detuning are not required that leads to faster implementation. We also show that the marked state can be searched with high fidelity even in the presence of unwanted off-resonant interactions, level decay, and cavity dissipation.

Journal

Quantum Information ProcessingSpringer Journals

Published: Aug 15, 2013

References

  • Spectroscopy on two coupled superconducting flux qubits
    Majer, JB; Paauw, FG; Haar, ACJ; Harmans, CJPM; Mooij, JE
  • Demonstration of two-qubit algorithms with a superconducting quantum processor
    DiCarlo, L; Chow, JM; Gambetta, JM; Bishop, LS; Johnson, BR; Schuster, DI; Majer, J; Blais, A; Frunzio, L; Girvin, SM; Schoelkopf, RJ

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