Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling

Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling

Dades bibliogràfiques
Parent link:	Physical Review Letters: Scientific Journal.— , 1958- Vol. 101, iss. 11.— 2008.— [117003 , 4 p.]
Altres autors:	Harris R., Johnson M. W., Han S., Berkley A. J., Johansson J., Bunyk P., Ladizinsky E., Govorkov S., Thom M. C., Uchaykin S. V. Sergey Victorovich, Bumble B., Fung A., Kaul A., Kleinsasser A., Amin M. H. S., Averin D. V.
Sumari:	Title screen Macroscopic resonant tunneling between the two lowest lying states of a bistable rf SQUID is used to characterize noise in a flux qubit. Measurements of the incoherent decay rate as a function of flux biasrevealed a Gaussian-shaped profile that is not peaked at the resonance point but is shifted to a bias at which the initial well is higher than the target well. The rms amplitude of the noise, which is proportionalto the dephasing rate 1=’, was observed to be weakly dependent on temperature below 70 mK. Analysis of these results indicates that the dominant source of low energy flux noise in this device is a quantummechanical environment in thermal equilibrium Режим доступа: по договору с организацией-держателем ресурса
Publicat:	2008
Matèries:	электронный ресурс труды учёных ТПУ
Accés en línia:	http://dx.doi.org/10.1103/PhysRevLett.101.117003 http://arxiv.org/abs/0712.0838
Format:	Electrònic Capítol de llibre
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637146

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