Bosons and fermions near Feshbach resonances : Theory of quantum gases and quantum coherence
Identifieur interne : 001700 ( Main/Exploration ); précédent : 001699; suivant : 001701Bosons and fermions near Feshbach resonances : Theory of quantum gases and quantum coherence
Auteurs : Henning Heiselberg [Danemark]Source :
- Journal of physics. B. Atomic, molecular and optical physics : (Print) [ 0953-4075 ] ; 2004.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Near Feshbach resonances, n|a|3 >> 1, systems of Bose and Fermi particles become strongly interacting/dense. In this unitary limit both bosons and fermions have very different properties than in a dilute gas, e.g., the energy per particle approaches a value h2n2/3/m times a universal many-body constant. Calculations based upon an approximate Jastrow wavefunction can quantitatively describe recent measurements of trapped Bose and Fermi atoms near Feshbach resonances. The pairing gap between attractive fermions also scales as Δ ∼ h2n2/3/m near Feshbach resonances and is a large fraction of the Fermi energy-promising for observing BCS superfluidity in traps. Pairing undergoes several transitions depending on interaction strength and the number of particles in the trap and can also be compared with pairing in nuclei.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000056
- to stream PascalFrancis, to step Curation: 000018
- to stream PascalFrancis, to step Checkpoint: 000056
- to stream Main, to step Merge: 001732
- to stream Main, to step Curation: 001700
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Bosons and fermions near Feshbach resonances : Theory of quantum gases and quantum coherence</title><author><name sortKey="Heiselberg, Henning" sort="Heiselberg, Henning" uniqKey="Heiselberg H" first="Henning" last="Heiselberg">Henning Heiselberg</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Southern, Campusvej 55</s1><s2>5230 Odense M</s2><s3>DNK</s3><sZ>1 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>5230 Odense M</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">04-0399293</idno><date when="2004">2004</date><idno type="stanalyst">PASCAL 04-0399293 INIST</idno><idno type="RBID">Pascal:04-0399293</idno><idno type="wicri:Area/PascalFrancis/Corpus">000056</idno><idno type="wicri:Area/PascalFrancis/Curation">000018</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000056</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000056</idno><idno type="wicri:doubleKey">0953-4075:2004:Heiselberg H:bosons:and:fermions</idno><idno type="wicri:Area/Main/Merge">001732</idno><idno type="wicri:Area/Main/Curation">001700</idno><idno type="wicri:Area/Main/Exploration">001700</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Bosons and fermions near Feshbach resonances : Theory of quantum gases and quantum coherence</title><author><name sortKey="Heiselberg, Henning" sort="Heiselberg, Henning" uniqKey="Heiselberg H" first="Henning" last="Heiselberg">Henning Heiselberg</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University of Southern, Campusvej 55</s1><s2>5230 Odense M</s2><s3>DNK</s3><sZ>1 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>5230 Odense M</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Journal of physics. B. Atomic, molecular and optical physics : (Print)</title><title level="j" type="abbreviated">J. phys., B, At. mol. opt. phys. : (Print)</title><idno type="ISSN">0953-4075</idno><imprint><date when="2004">2004</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of physics. B. Atomic, molecular and optical physics : (Print)</title><title level="j" type="abbreviated">J. phys., B, At. mol. opt. phys. : (Print)</title><idno type="ISSN">0953-4075</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Attraction interaction</term><term>BCS theory</term><term>Bose-Einstein condensation</term><term>Boson systems</term><term>Fermion systems</term><term>Feshbach resonance</term><term>Harmonic oscillators</term><term>Monte Carlo methods</term><term>Particle interactions</term><term>Superfluidity</term><term>Theoretical study</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Système bosons</term><term>Système fermions</term><term>Résonance Feshbach</term><term>Superfluidité</term><term>Condensation Bose Einstein</term><term>Etude théorique</term><term>Théorie BCS</term><term>Méthode Monte Carlo</term><term>Interaction particule</term><term>Interaction attraction</term><term>Oscillateur harmonique</term><term>0530J</term><term>0530F</term><term>0375H</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Near Feshbach resonances, n|a|<sup>3</sup> >> 1, systems of Bose and Fermi particles become strongly interacting/dense. In this unitary limit both bosons and fermions have very different properties than in a dilute gas, e.g., the energy per particle approaches a value h<sup>2</sup>n<sup>2/3</sup>/m times a universal many-body constant. Calculations based upon an approximate Jastrow wavefunction can quantitatively describe recent measurements of trapped Bose and Fermi atoms near Feshbach resonances. The pairing gap between attractive fermions also scales as Δ ∼ h<sup>2</sup>n<sup>2/3</sup>/m near Feshbach resonances and is a large fraction of the Fermi energy-promising for observing BCS superfluidity in traps. Pairing undergoes several transitions depending on interaction strength and the number of particles in the trap and can also be compared with pairing in nuclei.</div></front></TEI><affiliations><list><country><li>Danemark</li></country></list><tree><country name="Danemark"><noRegion><name sortKey="Heiselberg, Henning" sort="Heiselberg, Henning" uniqKey="Heiselberg H" first="Henning" last="Heiselberg">Henning Heiselberg</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Sante/explor/H2N2V1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001700 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001700 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Sante
|area= H2N2V1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:04-0399293
|texte= Bosons and fermions near Feshbach resonances : Theory of quantum gases and quantum coherence
}}
| This area was generated with Dilib version V0.6.33. |  |