Quartet superfluid in two-dimensional mass-imbalanced Fermi mixtures

R Liu, W Wang, X Cui - Physical Review Letters, 2023 - APS
Quartet superfluid (QSF) is a distinct type of fermion superfluidity that exhibits high-order
correlation beyond the conventional BCS pairing paradigm. In this Letter, we report the …

Emergence of crystalline few-body correlations in mass-imbalanced Fermi polarons

R Liu, C Peng, X Cui - Cell Reports Physical Science, 2022 - cell.com
Polarons can serve as an ideal platform to identify few-body correlations in tackling complex
many-body problems. In this work, we reveal various crystalline few-body correlations …

Universal clusters in quasi-two-dimensional ultracold Fermi mixtures

R Liu, T Shi, M Zaccanti, X Cui - Physical Review Research, 2024 - APS
We study universal clusters in quasi-two-dimensions (q2D) that consist of a light (L) atom
interacting with two or three heavy (H) identical fermions, forming the trimer or tetramer …

Heavy-light clusters of two-dimensional fermions

J Givois, A Tononi, DS Petrov - SciPost Physics, 2024 - scipost.org
We study binding of $ N $ identical heavy fermions by a light atom in two dimensions
assuming zero-range attractive heavy-light interactions. By using the mean-field theory valid …

Competing few-body correlations in ultracold Fermi polarons

R Liu, X Cui - AAPPS Bulletin, 2024 - Springer
Polaron, a typical quasi-particle that describes a single impurity dressed with surrounding
environment, serves as an ideal platform for bridging few-and many-body physics. In …

Self-binding of one-dimensional fermionic mixtures with zero-range interspecies attraction

J Givois, A Tononi, D Petrov - SciPost Physics, 2023 - scipost.org
For sufficiently large mass ratios the attractive exchange force caused by a single light atom
interacting with a few heavy identical fermions can overcome their Fermi degeneracy …

Self-bound clusters of one-dimensional fermionic mixtures

MC Gordillo - Physical Review Research, 2023 - APS
Diffusion Monte Carlo calculations on the possibility of having self-bound one-dimensional
droplets of SU (6)× SU (2) ultracold fermionic mixtures are presented. We found that, even …

Absence of binding of heavy fermions by two light atoms in two dimensions

J Givois, DS Petrov - Few-Body Systems, 2024 - Springer
By developing the mean-field theory valid for large N, we investigate the problem of two light
fermions interacting via a zero-range potential with N heavy fermions in two dimensions. We …

Several fermions strongly interacting with a heavy mobile impurity in a one-dimensional harmonic trap

D Włodzyński - Physical Review A, 2022 - APS
We propose a numerically exact method for a mixture with a single impurity immersed in
several majority fermions, confined in a harmonic potential. We separate one of the degrees …

Bipolaron in one-dimensional fermions with three-body interaction

O Hryhorchak, G Panochko, V Pastukhov - arXiv preprint arXiv …, 2024 - arxiv.org
The properties of the one-dimensional $ SU (3) $ population-imbalanced fermions are
discussed. The system is assumed to be in the two-body resonance where all two-body …