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- Title
Intrinsic Quantum Dissipation in Superconducting Weak Links.
- Authors
Galaktionov, Artem V.; Golubev, Dmitry S.; Zaikin, Andrei D.
- Abstract
We evaluate the frequency spectrum for an intrinsic quantum dissipative environment for the Josephson phase <italic>φ</italic> formed by subgap Andreev bound states in superconducting weak links. We also analyze the problem of macroscopic quantum tunneling (MQT) of <italic>φ</italic> in highly transparent weak links and identify several MQT regimes. Within the exponential accuracy, we derive the expression for the supercurrent quantum decay rate both at low temperatures and in the vicinity of the quantum-to-classical crossover.
- Subjects
ENERGY dissipation; SUPERCONDUCTING interconnections; JOSEPHSON effect; QUANTUM tunneling; CAPACITANCE measurement
- Publication
Journal of Superconductivity & Novel Magnetism, 2018, Vol 31, Issue 3, p715
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-017-4318-8