Macroscopic resonant tunneling in the presence of low frequency noise.
Phys Rev Lett
; 100(19): 197001, 2008 May 16.
Article
em En
| MEDLINE
| ID: mdl-18518478
ABSTRACT
We develop a theory of macroscopic resonant tunneling of flux in a double-well potential in the presence of realistic flux noise with a significant low-frequency component. The rate of incoherent flux tunneling between the wells exhibits resonant peaks, the shape and position of which reflect qualitative features of the noise, and can thus serve as a diagnostic tool for studying the low-frequency flux noise in SQUID qubits. We show, in particular, that the noise-induced renormalization of the first resonant peak provides direct information on the temperature of the noise source and the strength of its quantum component.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Qualitative_research
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Canadá