Density and pseudo-spin rotons in a bilayer of soft-core bosons

Simple item page
buir.contributor.authorTanatar, Bilal
buir.contributor.orcidTanatar, Bilal|0000-0002-5246-0119
dc.citation.epage125001-9en_US
dc.citation.issueNumber12
dc.citation.spage125001-1
dc.citation.volumeNumberVolume 56
dc.contributor.authorPouresmaeeli, F.
dc.contributor.authorAbedinpour, S. H.
dc.contributor.authorTanatar, Bilal
dc.date.accessioned2024-03-10T14:52:09Z
dc.date.available2024-03-10T14:52:09Z
dc.date.issued2023-05-26
dc.departmentDepartment of Physics
dc.description.abstractWe study the dynamics of a bilayer system of bosons with repulsive soft-core Rydberg-dressed interactions within the mean-field Bogoliubov-de Gennes approximation. We find roton minima in both symmetric and asymmetric collective density modes of the symmetric bilayer. Depending on the density of bosons in each layer and the spacing between two layers, the homogeneous superfluid phase becomes unstable in either (or both) of these two channels, leading to density and pseudo-spin-density wave instabilities in the system. Breaking the symmetry between two layers, either with a finite counterflow or a density imbalance renormalizes the dispersion of collective modes and makes the system more susceptible to density-wave instability.
dc.description.provenanceMade available in DSpace on 2024-03-10T14:52:09Z (GMT). No. of bitstreams: 1 Density_and_pseudospin_rotons_in_a_bilayer_of_softcore_bosonsJournal_of_Physics_B_Atomic_Molecular_and_Optical_Physics.pdf: 1170538 bytes, checksum: d41cc3fe60a07f656958d7bf2e25aa8b (MD5) Previous issue date: 2023-05-26en
dc.identifier.doi10.1088/1361-6455/acd599
dc.identifier.eissn1361-6455
dc.identifier.issn0953-4075
dc.identifier.urihttps://hdl.handle.net/11693/114459
dc.language.isoen_US
dc.publisherInstitute of Physics
dc.relation.isversionofhttps://dx.doi.org/10.1088/1361-6455/acd599
dc.rightsCC BY 4.0 Deed (Attribution 4.0 International)
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.source.titleJournal of Physics B: Atomic, Molecular and Optical Physics
dc.subjectRydberg-dressed bosons
dc.subjectBilayer structure
dc.subjectDensity-wave instability
dc.titleDensity and pseudo-spin rotons in a bilayer of soft-core bosons
dc.typeArticle

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Density_and_pseudo_spin_rotons_in_a_bilayer_of_soft-core_bosons.pdf
Size:
848.94 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.01 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Scholarly Publications - Physics