Impurity and soliton dynamics in a Fermi gas with nearest-neighbor interactions

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Visuri, A. M. Törmä, P. Giamarchi, T. 2017-10-15T20:38:04Z 2017-10-15T20:38:04Z 2017-06-07
dc.identifier.citation Visuri , A M , Törmä , P & Giamarchi , T 2017 , ' Impurity and soliton dynamics in a Fermi gas with nearest-neighbor interactions ' Physical Review A , vol 95 , no. 6 , 063605 , pp. 1-12 . DOI: 10.1103/PhysRevA.95.063605 en
dc.identifier.issn 2469-9926
dc.identifier.issn 1094-1622
dc.identifier.other PURE UUID: 4ea7f57a-93f4-4a6e-b5a9-8f4a5a5aad2f
dc.identifier.other PURE ITEMURL:
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dc.description | openaire: EC/FP7/340748/EU//CODE
dc.description.abstract We study spinless fermions with repulsive nearest-neighbor interactions perturbed by an impurity particle or a local potential quench. Using the numerical time-evolving block decimation method and a simplified analytic model, we show that the perturbations create a soliton-antisoliton pair. If solitons are already present in the bath, the two excitations have a drastically different dynamics: The antisoliton does not annihilate with the solitons and is therefore confined close to its origin while the soliton excitation propagates. We discuss the consequences for experiments with ultracold gases. en
dc.format.extent 1-12
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/FP7/340748/EU//CODE
dc.relation.ispartofseries Physical Review A en
dc.relation.ispartofseries Volume 95, issue 6 en
dc.rights openAccess en
dc.subject.other Atomic and Molecular Physics, and Optics en
dc.subject.other 114 Physical sciences en
dc.title Impurity and soliton dynamics in a Fermi gas with nearest-neighbor interactions en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department University of Geneva
dc.subject.keyword Atomic and Molecular Physics, and Optics
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201710157041
dc.identifier.doi 10.1103/PhysRevA.95.063605
dc.type.version publishedVersion

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