Generalized switchable coupling for superconducting qubits using double resonance

Physical Review B - Condensed Matter and Materials Physics Volume 74 Issue 18 Page 184504-1-184504-6 published_at 2006-11-06
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Title ( eng )
Generalized switchable coupling for superconducting qubits using double resonance
Creator
Ashhab S.
Matsuo Shigemasa
Nori Franco
Source Title
Physical Review B - Condensed Matter and Materials Physics
Volume 74
Issue 18
Start Page 184504-1
End Page 184504-6
Abstract
We propose a method for switchable coupling between superconducting qubits using double resonance. The interqubit coupling is achieved by applying near-resonant oscillating fields to the two qubits. The deviation from resonance relaxes the criterion of strong driving fields while still allowing for a fully entangling two-qubit gate. This method avoids some of the shortcomings of previous proposals for switchable coupling. We discuss the possible application of our proposal to a pair of inductively coupled flux qubits, and we consider the extension to phase qubits.
Keywords
superconducting devices
quantum computing
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2006-11-06
Rights
Copyright (c) 2006 The American Physical Society.
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0163-1829
[DOI] 10.1103/PhysRevB.74.184504
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.74.184504