Probing Temperature Dependent Noise in Flux Qubits via Macroscopic Resonant Tunneling; Bulletin of the American Physical Society; Vol. 53, № 2
| Parent link: | Bulletin of the American Physical Society.— , 2008 Vol. 53, № 2.— 2008.— Abstract: X10.00010 |
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| Outros autores: | , , , , , , , , , , , , , , , |
| Summary: | Macroscopic resonant tunneling between the two lowest lying states of a bistable RF-SQUID is used to characterize flux noise in a potential qubit. Detailed measurements of incoherent decay rates as a function of flux bias revealed that the Gaussian shaped tunneling rate is not peaked at the resonance point, but is shifted to a flux bias at which the initial well is higher than the target well. This observation indicates that the dominant low frequency (1/f) flux noise in this device is quantum mechanical in nature. The r.m.s. amplitude of the noise, which is proportional to decoherence rate 1/T ∗ 2 , was observed to be weakly dependent on temperature below 70 mK. В фонде НТБ ТПУ отсутствует |
| Idioma: | inglés |
| Publicado: |
2008
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| Subjects: | |
| Formato: | Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=600819 |
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| 200 | 1 | |a Probing Temperature Dependent Noise in Flux Qubits via Macroscopic Resonant Tunneling |f A. J. Berkley [et al.] | |
| 330 | |a Macroscopic resonant tunneling between the two lowest lying states of a bistable RF-SQUID is used to characterize flux noise in a potential qubit. Detailed measurements of incoherent decay rates as a function of flux bias revealed that the Gaussian shaped tunneling rate is not peaked at the resonance point, but is shifted to a flux bias at which the initial well is higher than the target well. This observation indicates that the dominant low frequency (1/f) flux noise in this device is quantum mechanical in nature. The r.m.s. amplitude of the noise, which is proportional to decoherence rate 1/T ∗ 2 , was observed to be weakly dependent on temperature below 70 mK. | ||
| 333 | |a В фонде НТБ ТПУ отсутствует | ||
| 461 | |t Bulletin of the American Physical Society |d 2008 | ||
| 463 | |t Vol. 53, № 2 |o 2008 APS March Meeting, March 10–14, 2008, New Orleans, Louisiana |v Abstract: X10.00010 |d 2008 | ||
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| 701 | 1 | |a Uchaykin (Uchaikin) |b S. V. |c specialist in the field of non-destructive testing |c Engineer of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1963- |g Sergey Victorovich |3 (RuTPU)RU\TPU\pers\32279 | |
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