Macroscopic quantum behavior of SQUIDs
โ Scribed by Berardo Ruggiero; Paolo Silvestrini
- Book ID
- 112784132
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 170 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0011-4626
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๐ SIMILAR VOLUMES
A new kind of superconducting device, a 4-terminal SQUID, has been fabricated. It consists of a Josephson 4-terminal junction of which two terminals are short-circuited by a superconducting ring and the other two are connected to a current source, forming the transport circuit. Oscillations in the v
We have studied the transition rate from the zero-voltage state in a dc SQUID as a function of applied flux and temperature. We observe a crossover from thermal activation to macroscopic quantum tunneling at a flux-dependent temperature. The thermal rates are significantly suppressed, suggesting tha