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Macroscopic quantum superposition states in Bose-Einstein condensates: Decoherence and many modes

Louis, P J Y; Brydon, Philip; Savage, Craig

Description

The generation of macroscopic quantum superposition states in two-species dilute gas Bose-Einstein condensates was analyzed. The proposed scheme utilizes two-body interactions and Josephson coupling between the species. A dissipation model was included and a system with four modes was considered, and the generation of superposition states was found to be robust to these changes. Small number difference Schrodinger cats required either very small densities of noncondensed atoms or sophisticated...[Show more]

dc.contributor.authorLouis, P J Y
dc.contributor.authorBrydon, Philip
dc.contributor.authorSavage, Craig
dc.date.accessioned2015-12-13T23:23:05Z
dc.date.available2015-12-13T23:23:05Z
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/91746
dc.description.abstractThe generation of macroscopic quantum superposition states in two-species dilute gas Bose-Einstein condensates was analyzed. The proposed scheme utilizes two-body interactions and Josephson coupling between the species. A dissipation model was included and a system with four modes was considered, and the generation of superposition states was found to be robust to these changes. Small number difference Schrodinger cats required either very small densities of noncondensed atoms or sophisticated reservoir engineering.
dc.publisherAmerican Physical Society
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Damping; Differential equations; Energy dissipation; Gas condensates; Ground state; Hamiltonians; Kinetic energy; Mathematical models; Runge Kutta methods; Bose-Einstein condensates (BEC); Quantum theory
dc.titleMacroscopic quantum superposition states in Bose-Einstein condensates: Decoherence and many modes
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume64
dc.date.issued2001
local.identifier.absfor020604 - Quantum Optics
local.identifier.ariespublicationMigratedxPub22611
local.type.statusPublished Version
local.contributor.affiliationLouis, P J Y, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBrydon, Philip, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSavage, Craig, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.startpage053613-1-6
dc.date.updated2015-12-12T09:13:58Z
local.identifier.scopusID2-s2.0-0035505315
CollectionsANU Research Publications

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