dc.identifier.uri |
http://dx.doi.org/10.15488/9150 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/9203 |
|
dc.contributor.author |
Draxler, Damian
|
|
dc.contributor.author |
Haegeman, Jutho
|
|
dc.contributor.author |
Osborne, Tobias J.
|
|
dc.contributor.author |
Stojevic, Vid
|
|
dc.contributor.author |
Vanderstraeten, Laurens
|
|
dc.contributor.author |
Verstraete, Frank
|
|
dc.date.accessioned |
2019-12-18T07:03:11Z |
|
dc.date.available |
2019-12-18T07:03:11Z |
|
dc.date.issued |
2013 |
|
dc.identifier.citation |
Draxler, D. et al.: Particles, holes, and solitons: a matrix product state approach. In: Physical Review Letters 111 (2013), Nr. 2, 20402. DOI: https://doi.org/10.1103/PhysRevLett.111.020402 |
|
dc.description.abstract |
We introduce a variational method for calculating dispersion relations of translation invariant (1+1)-dimensional quantum field theories. The method is based on continuous matrix product states and can be implemented efficiently. We study the critical Lieb-Liniger model as a benchmark and excellent agreement with the exact solution is found. Additionally, we observe solitonic signatures of Lieb’s type II excitation. In addition, a nonintegrable model is introduced where a U(1)-symmetry breaking term is added to the Lieb-Liniger Hamiltonian. For this model we find evidence of a nontrivial bound-state excitation in the dispersion relation. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
College Park, MD : American Physical Society |
|
dc.relation.ispartofseries |
Physical Review Letters 111 (2013), Nr. 2 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
|
dc.subject |
one-dimensional quantum systems |
eng |
dc.subject |
quantum gases |
eng |
dc.subject |
Lieb-Liniger model |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Particles, holes, and solitons: a matrix product state approach |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
1079-7114 |
|
dc.relation.issn |
0031-9007 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevLett.111.020402 |
|
dc.bibliographicCitation.issue |
2 |
|
dc.bibliographicCitation.volume |
111 |
|
dc.bibliographicCitation.firstPage |
20402 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|