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Phys. Rev. B 68, 064509 (2003) [7 pages]

Quantum information processing with superconducting qubits in a microwave field

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J. Q. You1,2,3 and Franco Nori1,2,*
1Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi 351-0198, Japan
2Center for Theoretical Physics, Physics Department, Center for the Study of Complex Systems, The University of Michigan, Ann Arbor, Michigan 48109-1120, USA
3National Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

Received 16 June 2003; published 22 August 2003

We investigate the quantum dynamics of a Cooper-pair box with a superconducting loop in the presence of a nonclassical microwave field. We demonstrate the existence of Rabi oscillations for both single- and multiphoton processes and, moreover, we propose a new quantum computing scheme (including one-bit and conditional two-bit gates) based on Josephson qubits coupled through microwaves.

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.68.064509
DOI:
10.1103/PhysRevB.68.064509
PACS:
74.50.+r, 03.67.Lx, 85.25.Cp

*Corresponding author. Email address: nori@umich.edu

 
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