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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| Drugi avtorji: | , , , , , , , , , , , , , , , |
| Izvleček: | 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 |
| Jezik: | angleščina |
| Izdano: |
2008
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| Teme: | |
| Format: | Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=600819 |