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Equation of state of a laser-cooled gas

2016-02Journal article Open access
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dc.contributor.authorRodrigues, J. D.
dc.contributor.authorRodrigues, J. A.
dc.contributor.authorMoreira, O. L.
dc.contributor.authorTercas, H.
dc.contributor.authorMendonca, J. T.
dc.date.accessioned2017-04-07T15:57:09Z
dc.date.available2017-04-07T15:57:09Z
dc.date.issued2016-02
dc.description.abstractWe experimentally determine the equation of state of a laser-cooled gas. By employing the Lane-Emden formalism, widely used in astrophysics, we derive the equilibrium atomic profiles in large magneto-optical traps where the thermodynamic effects are cast in a polytropic equation of state. The effects of multiple scattering of light are included, which results in a generalized Lane-Emden equation for the atomic profiles. A detailed experimental investigation reveals an excellent agreement with the model, with a twofold significance. On one hand, we can infer the details of the equation of state of the system, from an ideal gas to a correlated phase due to an effective electrical charge for the atoms, which is accurately described by a microscopical description of the effective electrostatic interaction. On the other hand, we are able map the effects of multiple scattering onto directly controllable experimental variables, which paves the way to subsequent experimental investigations of this collective interaction.
dc.identifier.doi10.1103/PhysRevA.93.023404
dc.identifier.issn2469-9926
dc.identifier.otherAUT: AR00700;
dc.identifier.urihttp://hdl.handle.net/10400.1/9628
dc.language.isoeng
dc.peerreviewedyes
dc.relationPrivacy-Preserving Intrusion Detection and Response in Wireless Communications
dc.relationOperating ICT basic switches below the Landauer limit
dc.relationPhonon-Assisted Processes for Energy Transfer and Sensing
dc.relation.isbasedonWOS:000369367400007
dc.titleEquation of state of a laser-cooled gas
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePrivacy-Preserving Intrusion Detection and Response in Wireless Communications
oaire.awardTitleOperating ICT basic switches below the Landauer limit
oaire.awardTitlePhonon-Assisted Processes for Energy Transfer and Sensing
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/252323/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEEA%2F50008%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/318287/EU
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/323901/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F00491%2F2013/PT
oaire.citation.endPage23404
oaire.citation.issue2
oaire.citation.startPage23404
oaire.citation.titlePhysical Review
oaire.citation.volume93
oaire.fundingStreamFP7
oaire.fundingStream5876
oaire.fundingStreamFP7
oaire.fundingStreamFP7
oaire.fundingStream5876
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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