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Macroscopic quantum behavior of superconducting quantum interference devices

✍ Scribed by M.G. Castellano

Book ID
105357272
Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
125 KB
Volume
51
Category
Article
ISSN
0015-8208

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✦ Synopsis

Abstract

Superconducting quantum interference devices (SQUIDs) are made by a superconducting loop interrupted by one or more Josephson junctions. They are described in terms of a macroscopic variable, the magnetic flux, which shows quantum effects such as tunnelling through a potential barrier. Besides making up the source of a quantum state, SQUIDs also provide the instruments necessary for its probing: as a fact, SQUID based magnetometers have a sensitivity approaching the quantum limit. In this paper I will review the working principle of these devices and illustrate the system of SQUIDs realized in my group to test the quantum behavior at a macroscopic level.

πŸ“œ SIMILAR VOLUMES

Macroscopic quantum interference effects
Macroscopic quantum interference effects in superconducting multiterminal microstructures
✍ R. de Bruyn Ouboter; A.N. Omelyanchouk πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 331 KB

We review the macroscopic quantum phenomena in superconducting microstructures based on multiterminal junctions. The multiterminal Josephson junction presents a system in which the weak coupling takes place between several massive superconducting banks (terminals). Compared with the conventional (tw