Robust preparation of four-qubit decoherence-free states for superconducting quantum interference devices against collective amplitude damping

Robust preparation of four-qubit decoherence-free states for superconducting quantum interference... Based on the quantum Zeno dynamics, we present an approach for deterministic preparation of arbitrary four-qubit decoherence-free state of superconducting quantum interference devices with respective to collective amplitude damping in a decoherence-free way, namely, not only the form of the target state is free of decoherence, but also the whole process for preparation. The operation is fast and convenient since we only need to manipulate three weak laser pulses sequentially. Other decoherence effects such as cavity decay and the spontaneous emission of qubits are also taken into account in virtue of master equation, and the strictly numerical simulation signifies the final fidelity is high corresponding to the current experimental technology. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Robust preparation of four-qubit decoherence-free states for superconducting quantum interference devices against collective amplitude damping

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Publisher
Springer US
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/s11128-013-0604-y
Publisher site
See Article on Publisher Site

Abstract

Based on the quantum Zeno dynamics, we present an approach for deterministic preparation of arbitrary four-qubit decoherence-free state of superconducting quantum interference devices with respective to collective amplitude damping in a decoherence-free way, namely, not only the form of the target state is free of decoherence, but also the whole process for preparation. The operation is fast and convenient since we only need to manipulate three weak laser pulses sequentially. Other decoherence effects such as cavity decay and the spontaneous emission of qubits are also taken into account in virtue of master equation, and the strictly numerical simulation signifies the final fidelity is high corresponding to the current experimental technology.

Journal

Quantum Information ProcessingSpringer Journals

Published: Jun 28, 2013

References

  • Generating entanglement between microwave photons and qubits in multiple cavities coupled by a superconducting qutrit
    Yang, CP; Su, QP; Zheng, SB; Han, S
  • Realization of three-qubit quantum error correction with superconducting circuits
    Reed, MD; DiCarlo, L; Nigg, SE; Sun, L; Frunzio, L; Girvin, SM; Schoelkopf, RJ
  • Entanglement sharing protocol via quantum error-correcting codes
    Choi, RH; Fortescue, B; Gour, G; Sanders, BC
  • Optimized dynamical decoupling in a model quantum memory
    Biercuk, MJ; Uys, H; VanDevender, AP; Shiga, N; Itano, WM; Bollinger, JJ

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