Double SQUID tunable flux qubit manipulated by fast pulses: operation requirements, dissipation and decoherence

2006/02/20 by F. Chiarello, Fabio Chiarello
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum and electron transport phenomena #cond-mat.supr-con

paper · pdf · doi:10.1140/epjb/e2007-00035-5

published as F. Chiarello, The European Physical Journal B - Condensed Matter and Complex Systems 55, 7-11 (2007) · 6 pages, 4 figures

arxiv created 2006/02/20 · openalex publication_date 2007/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29

Abstract

A double SQUID manipulated by fast magnetic flux pulses can be used as a tunable flux qubit. In this paper we study the requirements for the qubit operation, and evaluate dissipation and decoherence due to the manipulation for a typical system. Furthermore, we discuss the possibility to use an integrated Rapid Single Flux Quantum logic for the qubit control.

Citations

• Coherent control of macroscopic quantum states in a single-Cooper-pair box
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• Coherent Quantum Dynamics of a Superconducting Flux Qubit
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