Quantum storage and information transfer with superconducting qubits

Y. D. Wang, Z. D. Wang, and C. P. Sun

Phys. Rev. B 72, 172507 – Published 21 November 2005

Abstract

We theoretically design a rather simple device to realize the general quantum storage based on dc superconducting quantum interference device charge qubits. The distinct advantages of our scheme are analyzed in comparison with existing storage scenarios. More arrestingly, an easily controllable $X Y$ interaction has been realized in superconducting qubits, which may have more potential applications in addition to those in quantum information processing. The experimental feasibility is also elaborated.

Received 22 June 2005

DOI:https://doi.org/10.1103/PhysRevB.72.172507

Authors & Affiliations

Y. D. Wang^1,2, Z. D. Wang^1,3,*, and C. P. Sun²

¹Department of Physics and Center of Theoretical and Computational Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
²Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China
³National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, China

^*Electronic address: zwang@hkucc.hku.hk

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Issue

Vol. 72, Iss. 17 — 1 November 2005

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Physical Review B

covering condensed matter and materials physics