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Limits to the analog Hawking temperature in a Bose-Einstein condensate

Wuester, Sebastian; Savage, Craig

Description

Quasi-one-dimensional outflow from a dilute gas Bose-Einstein condensate reservoir is a promising system for the creation of analog Hawking radiation. We use numerical modeling to show that stable sonic horizons exist in such a system under realistic conditions, taking into account the transverse dimensions and three-body loss. We find that loss limits the analog Hawking temperatures achievable in the hydrodynamic regime, with sodium condensates allowing the highest temperatures. A condensate...[Show more]

dc.contributor.authorWuester, Sebastian
dc.contributor.authorSavage, Craig
dc.date.accessioned2015-12-07T22:54:04Z
dc.identifier.issn1050-2947
dc.identifier.urihttp://hdl.handle.net/1885/28009
dc.description.abstractQuasi-one-dimensional outflow from a dilute gas Bose-Einstein condensate reservoir is a promising system for the creation of analog Hawking radiation. We use numerical modeling to show that stable sonic horizons exist in such a system under realistic conditions, taking into account the transverse dimensions and three-body loss. We find that loss limits the analog Hawking temperatures achievable in the hydrodynamic regime, with sodium condensates allowing the highest temperatures. A condensate of 30 000 atoms, with transverse confinement frequency ω =6800×2π Hz, yields horizon temperatures of about 20 nK over a period of 50 ms. This is at least four times higher than for other atoms commonly used for Bose-Einstein condensates.
dc.publisherAmerican Physical Society
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.subjectKeywords: Atomic physics; Gas dynamics; Hydrodynamics; Thermal effects; Bose-Einstein condensate reservoir; Hawking radiation; Quasi-one-dimensional outflow; Sodium condensates; Bose-Einstein condensation
dc.titleLimits to the analog Hawking temperature in a Bose-Einstein condensate
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume76
dc.date.issued2007
local.identifier.absfor020604 - Quantum Optics
local.identifier.ariespublicationu4103646xPUB55
local.type.statusPublished Version
local.contributor.affiliationWuester, Sebastian, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSavage, Craig, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue013608
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage8
local.identifier.doi10.1103/PhysRevA.76.013608
dc.date.updated2015-12-07T12:46:08Z
local.identifier.scopusID2-s2.0-34547357910
CollectionsANU Research Publications

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