Bose-Einstein Condensation of Efimovian Triples in the Unitary Bose Gas

S. Musolino; H. Kurkjian; M. Van Regemortel; M. Wouters; S.J.J.M.F. Kokkelmans; V.E. Colussi

doi:10.1103/PhysRevLett.128.020401

Bose-Einstein Condensation of Efimovian Triples in the Unitary Bose Gas

S. Musolino (Corresponding author)
, H. Kurkjian
, M. Van Regemortel
, M. Wouters
, S.J.J.M.F. Kokkelmans
, V.E. Colussi

Research output: Contribution to journal › Article › Academic › peer-review

27 Citations (Scopus)

103 Downloads (Pure)

Abstract

In an atomic Bose-Einstein condensate quenched to the unitary regime, we predict the sequential formation of a significant fraction of condensed pairs and triples. At short distances, we demonstrate the two-body and Efimovian character of the condensed pairs and triples, respectively. As the system evolves, their size becomes comparable to the interparticle distance, such that many-body effects become significant. The structure of the condensed triples depends on the size of Efimov states compared with density scales. Unexpectedly, we find universal condensed triples in the limit where these scales are well separated. Our findings provide a new framework for understanding dynamics in the unitary regime as the Bose-Einstein condensation of few-body composites.

Original language	English
Article number	020401
Number of pages	8
Journal	Physical Review Letters
Volume	128
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.128.020401
Publication status	Published - 14 Jan 2022

Bibliographical note

Funding Information:
We thank Jinglun Li, Denise Ahmed-Braun, Paul Mestrom, Thomas Secker, and Gijs Groeneveld for fruitful discussions. M. V. R. acknowledges support by MURI-AFOSR FA9550- 19-1-0399. M. W. acknowledges financial support from the FWO-Vlaanderen under the Project No. G016219N. V. E. C. acknowledges financial support from Provincia Autonoma di Trento and the Italian MIUR under the PRIN2017 projectCEnTraL. S. M. and S. J. J. M. F. K. acknowledge financial support by the Netherlands Organisation for Scientific Research (NWO) under Grant No. 680-47-623.

Funding

We thank Jinglun Li, Denise Ahmed-Braun, Paul Mestrom, Thomas Secker, and Gijs Groeneveld for fruitful discussions. M. V. R. acknowledges support by MURI-AFOSR FA9550- 19-1-0399. M. W. acknowledges financial support from the FWO-Vlaanderen under the Project No. G016219N. V. E. C. acknowledges financial support from Provincia Autonoma di Trento and the Italian MIUR under the PRIN2017 projectCEnTraL. S. M. and S. J. J. M. F. K. acknowledge financial support by the Netherlands Organisation for Scientific Research (NWO) under Grant No. 680-47-623.

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title = "Bose-Einstein Condensation of Efimovian Triples in the Unitary Bose Gas",

abstract = "In an atomic Bose-Einstein condensate quenched to the unitary regime, we predict the sequential formation of a significant fraction of condensed pairs and triples. At short distances, we demonstrate the two-body and Efimovian character of the condensed pairs and triples, respectively. As the system evolves, their size becomes comparable to the interparticle distance, such that many-body effects become significant. The structure of the condensed triples depends on the size of Efimov states compared with density scales. Unexpectedly, we find universal condensed triples in the limit where these scales are well separated. Our findings provide a new framework for understanding dynamics in the unitary regime as the Bose-Einstein condensation of few-body composites.",

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AU - Kokkelmans, S.J.J.M.F.

AU - Colussi, V.E.

N1 - Funding Information: We thank Jinglun Li, Denise Ahmed-Braun, Paul Mestrom, Thomas Secker, and Gijs Groeneveld for fruitful discussions. M. V. R. acknowledges support by MURI-AFOSR FA9550- 19-1-0399. M. W. acknowledges financial support from the FWO-Vlaanderen under the Project No. G016219N. V. E. C. acknowledges financial support from Provincia Autonoma di Trento and the Italian MIUR under the PRIN2017 projectCEnTraL. S. M. and S. J. J. M. F. K. acknowledge financial support by the Netherlands Organisation for Scientific Research (NWO) under Grant No. 680-47-623.

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N2 - In an atomic Bose-Einstein condensate quenched to the unitary regime, we predict the sequential formation of a significant fraction of condensed pairs and triples. At short distances, we demonstrate the two-body and Efimovian character of the condensed pairs and triples, respectively. As the system evolves, their size becomes comparable to the interparticle distance, such that many-body effects become significant. The structure of the condensed triples depends on the size of Efimov states compared with density scales. Unexpectedly, we find universal condensed triples in the limit where these scales are well separated. Our findings provide a new framework for understanding dynamics in the unitary regime as the Bose-Einstein condensation of few-body composites.

AB - In an atomic Bose-Einstein condensate quenched to the unitary regime, we predict the sequential formation of a significant fraction of condensed pairs and triples. At short distances, we demonstrate the two-body and Efimovian character of the condensed pairs and triples, respectively. As the system evolves, their size becomes comparable to the interparticle distance, such that many-body effects become significant. The structure of the condensed triples depends on the size of Efimov states compared with density scales. Unexpectedly, we find universal condensed triples in the limit where these scales are well separated. Our findings provide a new framework for understanding dynamics in the unitary regime as the Bose-Einstein condensation of few-body composites.

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Bose-Einstein Condensation of Efimovian Triples in the Unitary Bose Gas

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