Influence of Paramagnetic and Kondo Impurities on Macroscopic Quantum Tunneling in SQUID's
- 26 December 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 61 (26) , 2905-2908
- https://doi.org/10.1103/physrevlett.61.2905
Abstract
The possibility is investigated that impurity spins in SQUID tunnel junctions might have a strong dissipative effect on macroscopic flux tunneling. A microscopic theory is given which shows that for temperatures lower than the Kondo temperature of the spins, there is a strong effect if , the Josephson plasma frequency. The connection with quantum measurement theory is discussed.
Keywords
This publication has 19 references indexed in Scilit:
- Quantum tunnelling in a dissipative systemPublished by Elsevier ,2004
- Experimental tests for the quantum behavior of a macroscopic degree of freedom: The phase difference across a Josephson junctionPhysical Review B, 1987
- Quantum Measurement Problem and Quantum FluidsPhysical Review Letters, 1985
- Quantum mechanics versus macroscopic realism: Is the flux there when nobody looks?Physical Review Letters, 1985
- Quantum dynamics of a superconducting tunnel junctionPhysical Review B, 1984
- Quantum Dynamics of Tunneling between SuperconductorsPhysical Review Letters, 1982
- Pointer basis of quantum apparatus: Into what mixture does the wave packet collapse?Physical Review D, 1981
- Exchange Model of Zero-Bias Tunneling AnomaliesPhysical Review B, 1967
- Quasi-Particles and Gauge Invariance in the Theory of SuperconductivityPhysical Review B, 1960
- Can Quantum-Mechanical Description of Physical Reality be Considered Complete?Physical Review B, 1935