Document
type: Class

Two-dimensional tunneling in a SQUID
e iscopus: 2-s2.0-78649712308
has publication venue: Physical Review B - Condensed Matter and Materials Physics
most specific type: Article
related by: authorship_15155
abstract: Traditionally quantum tunneling in a superconducting quantum interference device (SQUID) is studied on the basis of a classical trajectory in imaginary time under a two-dimensional potential barrier. The trajectory connects a potential well and an outer region crossing their borders in perpendicular directions. In contrast to that main-path mechanism, a wide set of trajectories with components tangent to the border of the well can constitute an alternative mechanism of multipath tunneling. The phenomenon is essentially nonone-dimensional. Continuously distributed paths under the barrier result in enhancement of tunneling probability. A type of tunneling mechanism (main path or multipath) depends on character of a state in the potential well prior to tunneling. A temperature dependence of the tunneling probability in a very asymmetric (different capacitances) SQUID has a finite slope at zero temperature. A transition between thermally assisted tunneling and pure activation can be not smooth depending on current through a very asymmetric SQUID. © 2010 The American Physical Society.
estado: published
volume: 82
crisid: 2566
type: Information Content Entity
type: Article
accesstype: All Open Access, Green
type: Document
most specific type: Document
doi: 10.1103/PhysRevB.82.184513
related by: authorship_15154
type: Entity
origen: scopus
issue: 18
type: Continuant
date time value: article date 2566
type: Generically Dependent Continuant
artnum: 184513
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date: 2026-08-25T07:00:18
publisher: vivo
type: Document

Physical Review B - Condensed Matter and Materials Physics
type: Generically Dependent Continuant
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type: Collection
type: Information Content Entity
type: Thing
publication venue for: Two-dimensional tunneling in a SQUID
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type: Periodical
type: Continuant

Article
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