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Universal Scaling Properties After Quantum Quenches, Damian Andres Galante
Universal Scaling Properties After Quantum Quenches, Damian Andres Galante
Electronic Thesis and Dissertation Repository
In this Thesis, the problem of a quantum quench in quantum field theories is analyzed. This involves studying the real time evolution of observables in a theory that undergoes a change in one of its couplings. These quenches are then characterized by two parameters: $\delta \lambda$, the magnitude of the quench and most importantly, $\delta t$, the quench duration. In contrast to previous studies of abrupt quenches in the condensed matter theory community, we will be interested in smooth quenches with a finite $\delta t$.
Motivated by existing results in holographic theories, we studied the problem of a fast smooth …