Metastability, resets and large deviations in open quantum systems

Rose, Dominic C. (2019) Metastability, resets and large deviations in open quantum systems. PhD thesis, University of Nottingham.

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In this thesis we apply, and build upon, a comprehensive theory of metastability in open quantum systems. We gain a full understanding of the long time states and the dynamics between them in a 1D open quantum Ising model, and a glassy, dissipative quantum East model: in order to do this, we develop algorithmic approaches to conducting such analyses in generic models exhibiting a metastability which can be considered classical. In addition, we provide an extensive discussion of the use of symmetries in the numerical study of open quantum systems, containing results of substantial use throughout this work. We finish with a general set of results about the spectra of operators describing the evolution of classical or quantum models undergoing stochastic resetting, allowing a precise analysis of the effect of resets on metastability in the 1D open quantum Ising model.

Item Type: Thesis (University of Nottingham only) (PhD)
Supervisors: Garrahan, Juan
Lesanovsky, Igor
Keywords: Metastability, Resets, Large deviation theory, open quantum systems, non-equilibrium, atomic-optical physics, glass physics
Subjects: Q Science > QC Physics > QC170 Atomic physics. Constitution and properties of matter
Faculties/Schools: UK Campuses > Faculty of Science > School of Physics and Astronomy
Item ID: 56892
Depositing User: Rose, Dominic
Date Deposited: 04 Sep 2019 12:20
Last Modified: 07 May 2020 08:16

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