Heyl, Markus Philip Ludwig (2012): Nonequilibrium phenomena in manybody quantum systems: dynamics, thermodynamics, and dynamical phase transitions. Dissertation, LMU München: Faculty of Physics 

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Abstract
This thesis contributes to the field of nonequilibrium phenomena in manybody quantum systems. The properties of systems driven out of equilibrium are studied from three different perspectives: dynamics, thermodynamics, and dynamical phase transitions. The realtime dynamics of quenched quantum systems is studied on the basis of explicit examples of stronglycorrelated manybody systems such as the Kondo model, the Luttinger liquid, and the anisotropic Heisenberg chain. The thermodynamic point of view is addressed in terms of the nonequilibrium work fluctuation theorems. In particular, it is shown that work distribution functions and thus also the Crooks relation can be measured in optical spectra of the xray edge type. The central aspect of this thesis is the definition of a dynamical phase transition for closed quantum manybody systems that is then analyzed in detail for the onedimensional transverse field Ising model. In the end the properties of periodically driven quantum systems is discussed for different models such as the Kondo model, resonant level model, and the Luttinger liquid.
Item Type:  Thesis (Dissertation, LMU Munich) 

Keywords:  Nonequilibrium, Quantum quenches, Dynamical phase transitions, Periodically driven systems, Crooks relation 
Subjects:  600 Natural sciences and mathematics 600 Natural sciences and mathematics > 530 Physics 
Faculties:  Faculty of Physics 
Language:  English 
Date Accepted:  13. July 2012 
1. Referee:  Kehrein, Stefan 
Persistent Identifier (URN):  urn:nbn:de:bvb:19145838 
MD5 Checksum of the PDFfile:  f4b530180f569344f7eaf61ab99db7db 
Signature of the printed copy:  0001/UMC 20454 
ID Code:  14583 
Deposited On:  25. Jul 2012 09:30 
Last Modified:  16. Oct 2012 09:03 