eprintid: 18141
rev_number: 12
eprint_status: archive
userid: 1654
dir: disk0/00/01/81/41
datestamp: 2015-02-11 14:53:08
lastmod: 2015-03-31 11:44:30
status_changed: 2015-02-11 14:53:08
type: doctoralThesis
metadata_visibility: show
creators_name: Hantschel, Frank
title: Energy transport in the medium of interacting two-level systems
subjects: ddc-530
divisions: i-130300
adv_faculty: af-13
cterms_swd: Energietransfer
cterms_swd: Dipol-Dipol-Wechselwirkung
cterms_swd: Spin-einhalb-System
abstract: This thesis investigates a medium of interacting two-level systems with dipolar interaction. This investigation is relevant to the dynamics of nuclear spins 1/2 in solids and to the dynamics of low temperature glasses. Our main tool is a hybrid quantum classical simulation, which enables us to study the time evolution of three-dimensional systems consisting of up to 1000 two-level systems. 

The results indicate, that the dynamics of the full system is delocalized up to very large disorders. We derive an estimate for the time scale of energy transport. When the disorder is larger than a certain value, this time scale becomes proportional to the disorder.
date: 2015
id_scheme: DOI
id_number: 10.11588/heidok.00018141
ppn_swb: 1655719416
own_urn: urn:nbn:de:bsz:16-heidok-181416
date_accepted: 2015-01-21
advisor: HASH(0x561a62831598)
language: eng
bibsort: HANTSCHELFENERGYTRAN2015
full_text_status: public
place_of_pub: Heidelberg
citation:   Hantschel, Frank  (2015) Energy transport in the medium of interacting two-level systems.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/18141/1/thesis_hantschel.pdf