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Dynamics of Tunneling Systems in Metals

  • Ulrich Weiss
  • Maura Sassetti
Part of the NATO ASI Series book series (NSSB, volume 264)

Abstract

In recent years, it has been observed in a multitude of systems in physical and chemical sciences that quantum tunneling is strongly affected by dissipative influences of the environment. Dissipation was found to cause novel features such as dissipative phase transitions,1 exponential suppression2 and qualitative change of the temperature dependence3 of tunneling rates. Much of the theoretical efforts have been devoted to the phenomenon of macroscopic quantum tunneling (MQT) at T = 0,2 and at finite temperatures,3 and to macroscopic quantum coherence (MQC).4,5 The theoretical predictions for the temperature and damping dependence of MQT have been verified precisely, e.g., in experiments on the decay of the zero-voltage state of a Josephson junction.6

Keywords

Macroscopic Quantum Tunneling Coherent Tunneling Metallic Environment Functional Integral Method Functional Integral Approach 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Ulrich Weiss
    • 1
  • Maura Sassetti
    • 1
  1. 1.Institut für Theoretische PhysikUniversität StuttgartStuttgart 80Germany

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