Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling; Physical Review Letters; Vol. 101, iss. 11
| Parent link: | Physical Review Letters: Scientific Journal.— , 1958- Vol. 101, iss. 11.— 2008.— [117003 , 4 p.] |
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| מחברים אחרים: | , , , , , , , , , , , , , , , |
| סיכום: | 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 |
| שפה: | אנגלית |
| יצא לאור: |
2008
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| נושאים: | |
| גישה מקוונת: | http://dx.doi.org/10.1103/PhysRevLett.101.117003 http://arxiv.org/abs/0712.0838 |
| פורמט: | אלקטרוני Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637146 |