eprintid: 20372
rev_number: 15
eprint_status: archive
userid: 2398
dir: disk0/00/02/03/72
datestamp: 2016-04-27 07:22:34
lastmod: 2016-11-09 10:17:23
status_changed: 2016-04-27 07:22:34
type: doctoralThesis
metadata_visibility: show
creators_name: Kasper, Valentin
title: Lattice Gauge Theory and Cold Atoms Out of Equilibrium
subjects: ddc-530
divisions: i-130300
adv_faculty: af-13
cterms_swd: Gittereichtheorie
cterms_swd: Quantenfeldtheorie
cterms_swd: Nichtgleichgewicht
cterms_swd: Quantengas
abstract: In this thesis we theoretically investigate the quantum simulation of lattice gauge theories for cold atom experiments. We give an explicit proposal to study a (1+1) -
dimensional U(1) lattice gauge theory. Starting with a bosonic and a fermionic atomic gas we tune the geometry and engineer the interactions such that we end up with a
one-dimensional system obeying the principle of local gauge invariance. A further important aspect of this proposal is the explicit use of highly occupied bosonic states in
order to make the investigation of strong field quantum electrodynamics feasible. In addition, we present an approach based on the functional integral in order to theoretically treat U(1) and SU(N) gauge fields interacting with matter out of equilibrium. We show that under specific conditions the quantum theory can be accurately mapped
onto a classical statistical ensemble. Further, exploiting this possibility, we study the prospect to observe intricate high energy phenomena like Schwinger pair-production and string breaking in such future cold atom experiments.
date: 2016
id_scheme: DOI
id_number: 10.11588/heidok.00020372
ppn_swb: 1653755989
own_urn: urn:nbn:de:bsz:16-heidok-203724
date_accepted: 2016-02-05
advisor: HASH(0x55f36919c3d0)
language: eng
bibsort: KASPERVALELATTICEGAU2016
full_text_status: public
citation:   Kasper, Valentin  (2016) Lattice Gauge Theory and Cold Atoms Out of Equilibrium.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/20372/1/Thesis.pdf