2021
DOI: 10.3390/atoms9040110
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Asymmetric Lineshapes of Efimov Resonances in Mass-Imbalanced Ultracold Gases

Abstract: The resonant profile of the rate coefficient for three-body recombination into a shallow dimer is investigated for mass-imbalanced systems. In the low-energy limit, three atoms collide with zero-range interactions, in a regime where the scattering lengths of the heavy–heavy and the heavy–light subsystems are positive and negative, respectively. For this physical system, the adiabatic hyperspherical representation is combined with a fully semi-classical method and we show that the shallow dimer recombination sp… Show more

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Cited by 4 publications
(2 citation statements)
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“…The few-body aspects of heteronuclear mixtures attracted significant interest in the last decade, both theoretical [11][12][13][14][15][16][17][18][19][20][21] and experimental [22][23][24][25][26][27][28][29]. The 6 Li-133 Cs mixture is the most extreme mass imbalanced system in which Efimov features were observed up to date making it favorable for the attempt to reveal the few-body physics at a narrow Feshbach resonance.…”
Section: Introductionmentioning
confidence: 99%
“…The few-body aspects of heteronuclear mixtures attracted significant interest in the last decade, both theoretical [11][12][13][14][15][16][17][18][19][20][21] and experimental [22][23][24][25][26][27][28][29]. The 6 Li-133 Cs mixture is the most extreme mass imbalanced system in which Efimov features were observed up to date making it favorable for the attempt to reveal the few-body physics at a narrow Feshbach resonance.…”
Section: Introductionmentioning
confidence: 99%
“…Apart from the particle statistics, our study addresses the effect of unequal massed three-body collisions. In 3D gases, it is known that highly mass-imbalanced systems exhibit rich resonant effects [46][47][48][49][50][51], or they favor the observation of multiple successive Efimov states [52][53][54]. Therefore, the inclusion of unequal masses here provides a comprehensive description of the dynamic properties of 2D threebody collisions ranging from light-light-heavy (LLH) to heavy-heavy-light (HHL) systems.…”
Section: Introductionmentioning
confidence: 99%