Shallow trimers of two identical fermions and one particle in resonant regimes

Naidon, Pascal; Pricoupenko, Ludovic; Schmickler, Christiane

doi:10.21468/SciPostPhys.12.6.185

SciPost Physics

Shallow trimers of two identical fermions and one particle in resonant regimes

Pascal Naidon, Ludovic Pricoupenko, Christiane Schmickler

SciPost Phys. 12, 185 (2022) · published 7 June 2022

doi: 10.21468/SciPostPhys.12.6.185
pdf
Submissions/Reports

Abstract

We consider two identical fermions interacting in the p-wave channel. Each fermion also interacts with another particle in the vicinity of an s-wave resonance. We find that in addition to the Kartavtsev-Malykh universal trimer states resulting from the s-wave particle-fermion interaction, the fermion-fermion p-wave interaction induces one or two shallow trimers in a large domain of the control parameters, including a borromean regime where the ground-state trimer exists in the absence of dimers at any mass ratio between the fermions and the particle. A generic picture of the trimer spectrum emerges from this work in terms of the low-energy parameters of the interactions.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.12.6.185
TI  - Shallow trimers of two identical fermions and one particle in resonant regimes
PY  - 2022/06/07
UR  - https://scipost.org/SciPostPhys.12.6.185
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 12
IS  - 6
SP  - 185
A1  - Naidon, Pascal
AU  - Pricoupenko, Ludovic
AU  - Schmickler, Christiane
AB  - We consider two identical fermions interacting in the p-wave channel. Each fermion also interacts with another particle in the vicinity of an s-wave resonance. We find that in addition to the Kartavtsev-Malykh universal trimer states resulting from the s-wave particle-fermion interaction, the fermion-fermion p-wave interaction induces one or two shallow trimers in a large domain of the control parameters, including a borromean regime where the ground-state trimer exists in the absence of dimers at any mass ratio between the fermions and the particle. A generic picture of the trimer spectrum emerges from this work in terms of the low-energy parameters of the interactions.
ER  -

@Article{10.21468/SciPostPhys.12.6.185,
	title={{Shallow trimers of two identical fermions and one particle in resonant regimes}},
	author={Pascal Naidon and Ludovic Pricoupenko and Christiane Schmickler},
	journal={SciPost Phys.},
	volume={12},
	pages={185},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.12.6.185},
	url={https://scipost.org/10.21468/SciPostPhys.12.6.185},
}

Cited by 6

Authors / Affiliations: mappings to Contributors and Organizations

See all Organizations.

¹ Pascal Naidon,
² Ludovic Pricoupenko,
¹ Christiane Schmickler

Funder for the research work leading to this publication

日本学術振興会 / Japan Society for the Promotion of Science [JSPS]