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Loss features in ultracold <math><mmultiscripts><mi>Dy</mi><mprescripts/><none/><mn>162</mn></mmultiscripts></math> gases: Two- versus three-body processes
| hal.structure.identifier | Laboratoire Kastler Brossel [LKB [Collège de France]] | |
| hal.structure.identifier | Collège de France - Chaire Atomes et rayonnement | |
| dc.contributor.author | LECOMTE, Maxime | |
| hal.structure.identifier | Laboratoire Kastler Brossel [LKB [Collège de France]] | |
| hal.structure.identifier | Collège de France - Chaire Atomes et rayonnement | |
| dc.contributor.author | JOURNEAUX, Alexandre | |
| hal.structure.identifier | Laboratoire Kastler Brossel [LKB [Collège de France]] | |
| hal.structure.identifier | Collège de France - Chaire Atomes et rayonnement | |
| dc.contributor.author | RENAUD, Loan | |
| hal.structure.identifier | Laboratoire Kastler Brossel [LKB [Collège de France]] | |
| hal.structure.identifier | Collège de France - Chaire Atomes et rayonnement | |
| dc.contributor.author | LOPES, Raphael | |
| hal.structure.identifier | Collège de France - Chaire Atomes et rayonnement | |
| hal.structure.identifier | Laboratoire Kastler Brossel [LKB [Collège de France]] | |
| dc.contributor.author | DALIBARD, Jean | |
| dc.date.issued | 2024 | |
| dc.identifier.issn | 2469-9926 | |
| dc.description.abstractEn | Dipolar gases like erbium and dysprosium have a dense spectrum of resonant loss features associated with their strong anisotropic interaction potential. These resonances display various behaviors with density and temperature, implying diverse microscopic properties. Here we quantitatively investigate the low-field (<math><mrow><mi>B</mi><mo><</mo><mn>6</mn><mspace width="0.16em"/><mi mathvariant="normal">G</mi></mrow></math>) loss features in ultracold thermal samples of <math><mmultiscripts><mi mathvariant="normal">Dy</mi><mprescripts/><none/><mrow><mn>162</mn></mrow></mmultiscripts></math>. The atoms are spin polarized in their lowest internal state so that pure two-body losses due to spin relaxation are forbidden. However, our analysis reveals that some resonances lead to a two-body-like decay law, while others show the expected three-body decay. We present microscopic one-step and two-step models for these losses, investigate their temperature dependence, and detect a feature compatible with a <math><mi>d</mi></math>-wave Fano-Feshbach resonance that has not been observed before. We also report the variation of the scattering length around these resonances, inferred from the time-of-flight expansion of the condensate. | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.title.en | Loss features in ultracold <math><mmultiscripts><mi>Dy</mi><mprescripts/><none/><mn>162</mn></mmultiscripts></math> gases: Two- versus three-body processes | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevA.109.023319 | |
| dc.subject.hal | Physique [physics]/Physique Quantique [quant-ph] | |
| dc.identifier.arxiv | 2310.11418 | |
| bordeaux.journal | Physical Review A | |
| bordeaux.page | 023319 | |
| bordeaux.volume | 109 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-04470692 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-04470692v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20A&rft.date=2024&rft.volume=109&rft.issue=2&rft.spage=023319&rft.epage=023319&rft.eissn=2469-9926&rft.issn=2469-9926&rft.au=LECOMTE,%20Maxime&JOURNEAUX,%20Alexandre&RENAUD,%20Loan&LOPES,%20Raphael&DALIBARD,%20Jean&rft.genre=article |
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