Effect of fluctuations on the superfluid-supersolid phase transition on the lattice
-
Altmetric Citations
Schutzhold, Ralf; Uhlmann, Michael; Fischer, Uwe
Description
We derive a controlled expansion into mean field plus fluctuations for the extended Bose-Hubbard model, involving interactions with many neighbors on an arbitrary periodic lattice, and study the superfluid-supersolid phase transition. Near the critical point, the impact of (thermal and quantum) fluctuations on top of the mean field grows, which entails striking effects, such as negative superfluid densities and thermodynamical instability of the superfluid phase-earlier as expected from...[Show more]
dc.contributor.author | Schutzhold, Ralf | |
---|---|---|
dc.contributor.author | Uhlmann, Michael | |
dc.contributor.author | Fischer, Uwe | |
dc.date.accessioned | 2015-12-08T22:22:53Z | |
dc.date.available | 2015-12-08T22:22:53Z | |
dc.identifier.issn | 1050-2947 | |
dc.identifier.uri | http://hdl.handle.net/1885/32648 | |
dc.description.abstract | We derive a controlled expansion into mean field plus fluctuations for the extended Bose-Hubbard model, involving interactions with many neighbors on an arbitrary periodic lattice, and study the superfluid-supersolid phase transition. Near the critical point, the impact of (thermal and quantum) fluctuations on top of the mean field grows, which entails striking effects, such as negative superfluid densities and thermodynamical instability of the superfluid phase-earlier as expected from mean-field dynamics. We also predict the existence of long-lived "supercooled" states with anomalously large quantum fluctuations. | |
dc.publisher | American Physical Society | |
dc.source | Physical Review A: Atomic, Molecular and Optical Physics | |
dc.subject | Keywords: Atomic physics; Bioelectric phenomena; Equations of state; Critical point; Mean fields; Supersolid phase transition; Hubbard model | |
dc.title | Effect of fluctuations on the superfluid-supersolid phase transition on the lattice | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 78 | |
dc.date.issued | 2008 | |
local.identifier.absfor | 020601 - Degenerate Quantum Gases and Atom Optics | |
local.identifier.ariespublication | u4103646xPUB94 | |
local.type.status | Published Version | |
local.contributor.affiliation | Schutzhold, Ralf, Technical University of Dresden | |
local.contributor.affiliation | Uhlmann, Michael, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Fischer, Uwe, Eberhard-Karls-Universitat | |
local.bibliographicCitation.issue | 033604 | |
local.bibliographicCitation.startpage | 5 | |
local.identifier.doi | 10.1103/PhysRevA.78.033604 | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2015-12-08T08:48:16Z | |
local.identifier.scopusID | 2-s2.0-51649120883 | |
Collections | ANU Research Publications |
Download
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator