Van der Waals universality near a quantum tricritical point

P. M. A. Mestrom; V. E. Colussi; T. Secker; G. P. Groeneveld; S. J. J. M. F. Kokkelmans

doi:10.48550/arXiv.1912.10812

Van der Waals universality near a quantum tricritical point

P. M. A. Mestrom, V. E. Colussi, T. Secker, G. P. Groeneveld, S. J. J. M. F. Kokkelmans

Coherence and Quantum Technology

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Abstract

We study the three-body scattering hypervolume D of atoms whose scattering length a is on the order of or smaller than the typical range rvdW of the van der Waals attraction. We find that the real part of D behaves universally in this weakly interacting regime (|a|/rvdW≲1) in the absence of trimer resonances. This universality originates from hard-sphere-like collisions that dominate elastic three-body scattering. We use this result to make quantitative predictions for the thermodynamics and elementary excitations of an atomic Bose-Einstein condensate (BEC) in the vicinity of a quantum tricritical point, including quantum droplets stabilized by effective three-body interactions

Original language	English
Article number	1912.10812v1
Number of pages	9
Journal	arXiv
Volume	2019
DOIs	https://doi.org/10.48550/arXiv.1912.10812
Publication status	Published - 23 Dec 2019

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title = "Van der Waals universality near a quantum tricritical point",

abstract = "We study the three-body scattering hypervolume D of atoms whose scattering length a is on the order of or smaller than the typical range rvdW of the van der Waals attraction. We find that the real part of D behaves universally in this weakly interacting regime (|a|/rvdW≲1) in the absence of trimer resonances. This universality originates from hard-sphere-like collisions that dominate elastic three-body scattering. We use this result to make quantitative predictions for the thermodynamics and elementary excitations of an atomic Bose-Einstein condensate (BEC) in the vicinity of a quantum tricritical point, including quantum droplets stabilized by effective three-body interactions",

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author = "Mestrom, {P. M. A.} and Colussi, {V. E.} and T. Secker and Groeneveld, {G. P.} and Kokkelmans, {S. J. J. M. F.}",

note = "9 pages, 8 figures",

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doi = "10.48550/arXiv.1912.10812",

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T1 - Van der Waals universality near a quantum tricritical point

AU - Mestrom, P. M. A.

AU - Colussi, V. E.

AU - Secker, T.

AU - Groeneveld, G. P.

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

N1 - 9 pages, 8 figures

PY - 2019/12/23

Y1 - 2019/12/23

N2 - We study the three-body scattering hypervolume D of atoms whose scattering length a is on the order of or smaller than the typical range rvdW of the van der Waals attraction. We find that the real part of D behaves universally in this weakly interacting regime (|a|/rvdW≲1) in the absence of trimer resonances. This universality originates from hard-sphere-like collisions that dominate elastic three-body scattering. We use this result to make quantitative predictions for the thermodynamics and elementary excitations of an atomic Bose-Einstein condensate (BEC) in the vicinity of a quantum tricritical point, including quantum droplets stabilized by effective three-body interactions

AB - We study the three-body scattering hypervolume D of atoms whose scattering length a is on the order of or smaller than the typical range rvdW of the van der Waals attraction. We find that the real part of D behaves universally in this weakly interacting regime (|a|/rvdW≲1) in the absence of trimer resonances. This universality originates from hard-sphere-like collisions that dominate elastic three-body scattering. We use this result to make quantitative predictions for the thermodynamics and elementary excitations of an atomic Bose-Einstein condensate (BEC) in the vicinity of a quantum tricritical point, including quantum droplets stabilized by effective three-body interactions

KW - physics.atom-ph

KW - cond-mat.quant-gas

U2 - 10.48550/arXiv.1912.10812

DO - 10.48550/arXiv.1912.10812

M3 - Article

VL - 2019

JO - arXiv

JF - arXiv

M1 - 1912.10812v1

ER -

Van der Waals universality near a quantum tricritical point

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