dc.identifier.uri |
http://dx.doi.org/10.15488/1902 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1927 |
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dc.contributor.author |
Deuretzbacher, Frank
|
|
dc.contributor.author |
Becker, D.
|
|
dc.contributor.author |
Bjerlin, J.
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|
dc.contributor.author |
Reimann, S.M.
|
|
dc.contributor.author |
Santos, Luis
|
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dc.date.accessioned |
2017-09-14T08:57:55Z |
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dc.date.available |
2017-09-14T08:57:55Z |
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dc.date.issued |
2017 |
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dc.identifier.citation |
Deuretzbacher, F.; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, L.: Spin-chain model for strongly interacting one-dimensional Bose-Fermi mixtures. In: Physical Review A 95 (2017), Nr. 4, No. 43630. DOI: https://doi.org/10.1103/PhysRevA.95.043630 |
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dc.description.abstract |
Strongly interacting one-dimensional (1D) Bose-Fermi mixtures form a tunable XXZ spin chain. Within the spin-chain model developed here, all properties of these systems can be calculated from states representing the ordering of the bosons and fermions within the atom chain and from the ground-state wave function of spinless noninteracting fermions. We validate the model by means of an exact diagonalization of the full few-body Hamiltonian in the strongly interacting regime. Using the model, we explore the phase diagram of the atom chain as a function of the boson-boson (BB) and boson-fermion (BF) interaction strengths and calculate the densities, momentum distributions, and trap-level occupancies for up to 17 particles. In particular, we find antiferromagnetic (AFM) and ferromagnetic (FM) order and a demixing of the bosons and fermions in certain interaction regimes. We find, however, no demixing for equally strong BB and BF interactions, in agreement with earlier calculations that combined the Bethe ansatz with a local-density approximation. © 2017 American Physical Society. |
eng |
dc.language.iso |
eng |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review A 95 (2017), Nr. 4 |
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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 |
Antiferromagnetism |
eng |
dc.subject |
Bosons |
eng |
dc.subject |
Ground state |
eng |
dc.subject |
Local density approximation |
eng |
dc.subject |
Mixtures |
eng |
dc.subject |
Spin dynamics |
eng |
dc.subject |
Wave functions |
eng |
dc.subject |
Antiferromagnetics |
eng |
dc.subject |
Bose-Fermi mixtures |
eng |
dc.subject |
Exact diagonalization |
eng |
dc.subject |
Ground state wavefunctions |
eng |
dc.subject |
Interaction strength |
eng |
dc.subject |
Momentum distributions |
eng |
dc.subject |
Noninteracting fermions |
eng |
dc.subject |
Spin chain models |
eng |
dc.subject |
Chains |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Spin-chain model for strongly interacting one-dimensional Bose-Fermi mixtures |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
24699926 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevA.95.043630 |
|
dc.bibliographicCitation.issue |
4 |
|
dc.bibliographicCitation.volume |
95 |
|
dc.bibliographicCitation.firstPage |
43630 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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