Dephasing of solid-state qubits at optimal points

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

Motivated by recent experiments with Josephson-junction circuits, we analyze the influence of various noise sources on the dynamics of two-level systems at optimal operation points where the linear coupling to low-frequency fluctuations is suppressed. We study the decoherence due to nonlinear (quadratic) coupling, focusing on the experimentally relevant 1/f and Ohmic noise power spectra. For 1/f noise strong higher-order effects influence the evolution.
minor corrections and clarifications

Keywords

Mesoscale and Nanoscale Physics, Quantum Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/22025

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0308297
 http://arxiv.org/abs/cond-mat/0308297
 Phys. Rev. Lett. 92, 178301 (2004)
 doi:10.1103/PhysRevLett.92.178301

Collections

arXiv