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Journal Club for Condensed Matter Physics

PROGRESS IN SUPERCONDUCTING QUBITS

Published Jun 22, 2010• 0 citations
Publisher

Abstract

1. Preparation and Measurement of Three-Qubit Entanglement in a Superconducting Circuit. Authors: L. DiCarlo, M. D. Reed, L. Sun, B. R. Johnson, J. M. Chow, J. M. Gambetta, L. Frunzio, S. M. Girvin, M. H. Devoret, R. J. Schoelkopf arXiv:1004.4324 2. Generation of Three-Qubit Entangled States using Superconducting Phase Qubits. Authors: M. Neeley, R. C. Bialczak, M. Lenander, […]

DOI
10.36471/jccm_june_2010_02

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  1. Preparation and Measurement of Three-Qubit Entanglement in a Superconducting Circuit. Authors: L. DiCarlo, M. D. Reed, L. Sun, B. R. Johnson, J. M. Chow, J. M. Gambetta, L. Frunzio, S. M. Girvin, M. H. Devoret, R. J. Schoelkopf arXiv:1004.4324 2. Generation of Three-Qubit Entangled States using Superconducting Phase Qubits. Authors: M. Neeley, R. C. Bialczak, M. Lenander, […]
We study how the nonadiabatic effect causes the observable fluctuation in the ``geometric phase'' for a two-level system, which is defined as the experimentally measurable quantity in the adiabatic limit. From the Rabi exact solution to this model, we give a reasonable explanation to the experimental discovery of phase fluctuation in the superconducting circuit system [P. J. Leek, J. M. Fink, A. Blais, R. Bianchetti, M. G\"oppl, J. M. Gambetta, D. I. Schuster, L. Frunzio, R. J. Schoelkopf, and A. Wallraf, Science 318, 1889 (2007)], which seemed to be regarded as the conventional experimental error.