Nonlinear Relaxation Phenomena in Metastable Condensed Matter Systems

• Published in: Entropy (Basel, Switzerland) Vol. 19; no. 1; p. 20
• Main Authors: Spagnolo, Bernardo, Guarcello, Claudio, Magazzù, Luca, Carollo, Angelo, Persano Adorno, Dominique, Valenti, Davide
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.01.2017
• Subjects: Condensed matter; Dissipation; Dynamical systems; Electron spin; Fluctuation; Josephson junction; metastability; Metastable state; Noise; noise enhanced stability; nonequilibrium statistical mechanics and nonlinear relaxation time; Nonlinear dynamics; open quantum systems; quantum noise enhanced stability; spin polarized transport in semiconductors

Nonlinear relaxation phenomena in three different systems of condensed matter are investigated. (i) First, the phase dynamics in Josephson junctions is analyzed. Specifically, a superconductor-graphene-superconductor (SGS) system exhibits quantum metastable states, and the average escape time from t...