Learning Centre

Flat band induced non-Fermi liquid behavior of multicomponent fermions

 |  Login

Show simple item record

dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Kumar, Pramod
dc.contributor.author Peotta, Sebastiano
dc.contributor.author Takasu, Yosuke
dc.contributor.author Takahashi, Yoshiro
dc.contributor.author Törmä, Päivi
dc.date.accessioned 2021-03-22T07:10:48Z
dc.date.available 2021-03-22T07:10:48Z
dc.date.issued 2021-03-03
dc.identifier.citation Kumar , P , Peotta , S , Takasu , Y , Takahashi , Y & Törmä , P 2021 , ' Flat band induced non-Fermi liquid behavior of multicomponent fermions ' , Physical Review A , vol. 103 , no. 3 , L031301 , pp. 1-7 . https://doi.org/10.1103/PhysRevA.103.L031301 en
dc.identifier.issn 2469-9926
dc.identifier.issn 2469-9934
dc.identifier.other PURE UUID: 9f900cad-a835-42a4-8a8a-62aea7519ec2
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/9f900cad-a835-42a4-8a8a-62aea7519ec2
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/56829232/PhysRevA.103.L031301_7.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/103262
dc.description.abstract We investigate multicomponent fermions in a flat band and predict experimental signatures of non-Fermi-liquid behavior. We use dynamical mean-field theory to obtain the density, double occupancy and entropy in a Lieb lattice for N=2 and N=4 components. We derive a mean-field scaling relation between the results for different values of N, and study its breakdown due to beyond mean-field effects. The predicted signatures occur at temperatures above the Néel temperature and persists even in the presence of a trapping potential, thus they are observable in current ultracold gas experiments. en
dc.format.extent 7
dc.format.extent 1-7
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher American Physical Society
dc.relation.ispartofseries Physical Review A en
dc.relation.ispartofseries Volume 103, issue 3 en
dc.rights openAccess en
dc.title Flat band induced non-Fermi liquid behavior of multicomponent fermions en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department Kyoto University
dc.subject.keyword Condensed Matter - Quantum Gases
dc.identifier.urn URN:NBN:fi:aalto-202103222540
dc.identifier.doi 10.1103/PhysRevA.103.L031301
dc.type.version publishedVersion

Files in this item

Files Size Format View

There are no open access files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search archive

Advanced Search

article-iconSubmit a publication