Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Bulletin of the American Physical Society

Phases and transport in spin- and mass-imbalanced Fermi mixtures in one dimension

Binbin Tian, Yuchi He, Michelle Tomczyk, Anthony Tylan‐Tyler, Patrick Irvin, Jeremy Levy, Roger S. K. Mong, David Pekker

Published Mar 16, 2017• 0 citations
OpenAlex

Related papers

Attractive atom-dimer interaction in a mass-imbalanced Fermi-Fermi mixture

Michael Jag, Matteo Zaccanti, Marko Cetina +5 more

Bulletin of the American Physical Society•Jun 7, 2013•0 citations

Dimer, trimer, and Fulde-Ferrell-Larkin-Ovchinnikov liquids in mass- and spin-imbalanced trapped binary mixtures in one dimension

Marcello Dalmonte, Kai Dieckmann, Tommaso Roscilde +4 more

We present a systematic investigation of attractive binary mixtures in the presence of both spin- and mass-imbalance in one-dimensional setups described by the Hubbard model. After discussing typical cold atomic experimental realizations and the relation between microscopic and effective parameters, we study several many-body features of trapped Fermi-Fermi and Bose-Bose mixtures such as density profiles, momentum distributions, and correlation functions by means of density-matrix-renormalization-group and quantum Monte Carlo simulations. In particular, we focus on the stability of Fulde-Ferrell-Larkin-Ovchinnikov, dimer, and trimer fluids in inhomogeneous situations, as typically realized in cold gas experiments due to the harmonic confinement. We finally consider possible experimental signatures of these phases both in the presence of a finite polarization and of a finite temperature.

arXiv:1203.5999•Physical Review A•Jun 8, 2012•34 citations

Phase Diagram of A One Dimensional Spin-Imbalanced Fermi Gas

Ann Sophie C. Rittner, Yean-an Liao, Tobias Paprotta +3 more

Bulletin of the American Physical Society•May 23, 2009•0 citations

Pairing, crystallization and string correlations of mass-imbalanced atomic mixtures in one-dimensional optical lattices

Tommaso Roscilde, C. Degli Esposti Boschi, M. Dalmonte

We numerically determine the very rich phase diagram of mass-imbalanced binary mixtures of hardcore bosons (or equivalently —fermions, or hardcore Bose/Fermi mixtures) loaded in one-dimensional optical lattices. Focusing on commensurate fillings away from half-filling, we find a strong asymmetry between attractive and repulsive interactions. Attraction is found to always lead to pairing, associated with a spin gap, and to pair crystallization for very strong mass imbalance. In the repulsive case the two atomic components remain instead fully gapless over a large parameter range; only a very strong mass imbalance leads to the opening of a spin gap. The spin-gap phase is the precursor of a crystalline phase occurring for an even stronger mass imbalance. The fundamental asymmetry of the phase diagram is at odds with recent theoretical predictions, and can be tested directly via time-of-flight experiments on trapped cold atoms.

arXiv:1105.1314•Europhysics Letters (EPL)•Jan 1, 2012•16 citations

Spin-imbalance in a one-dimensional Fermi gas

Yean-an Liao, Ann Sophie C. Rittner, Tobias Paprotta +5 more

arXiv:0912.0092•Nature•Sep 1, 2010•530 citations

Multiple phase separation in one-dimensional mixtures of mass- and population-imbalanced attractive Fermi gases

Sangwoo S. Chung, C. J. Bolech

We study the attractive Fermi mixture of a $^{6}\mathrm{Li}\text{\ensuremath{-}}^{40}\mathrm{K}$ gas in one dimension using the continuous matrix product states variational ansatz and obtain the $T=0$ phase diagram. We predict an axial density profile that contains four distinct phases trapped induced along one-dimensional (1D) tubes, which is more intricate than those observed in 1D mass-balanced systems or in higher-dimensional gas clouds. The parameter regimes explored are realistic in view of possible future experiments. This is an application of continuous matrix product states to a nonintegrable fermionic system.

arXiv:1612.03149•Physical Review A•Aug 9, 2017•11 citations
We present a systematic investigation of attractive binary mixtures in the presence of both spin- and mass-imbalance in one-dimensional setups described by the Hubbard model. After discussing typical cold atomic experimental realizations and the relation between microscopic and effective parameters, we study several many-body features of trapped Fermi-Fermi and Bose-Bose mixtures such as density profiles, momentum distributions, and correlation functions by means of density-matrix-renormalization-group and quantum Monte Carlo simulations. In particular, we focus on the stability of Fulde-Ferrell-Larkin-Ovchinnikov, dimer, and trimer fluids in inhomogeneous situations, as typically realized in cold gas experiments due to the harmonic confinement. We finally consider possible experimental signatures of these phases both in the presence of a finite polarization and of a finite temperature.
We numerically determine the very rich phase diagram of mass-imbalanced binary mixtures of hardcore bosons (or equivalently —fermions, or hardcore Bose/Fermi mixtures) loaded in one-dimensional optical lattices. Focusing on commensurate fillings away from half-filling, we find a strong asymmetry between attractive and repulsive interactions. Attraction is found to always lead to pairing, associated with a spin gap, and to pair crystallization for very strong mass imbalance. In the repulsive case the two atomic components remain instead fully gapless over a large parameter range; only a very strong mass imbalance leads to the opening of a spin gap. The spin-gap phase is the precursor of a crystalline phase occurring for an even stronger mass imbalance. The fundamental asymmetry of the phase diagram is at odds with recent theoretical predictions, and can be tested directly via time-of-flight experiments on trapped cold atoms.
We study the attractive Fermi mixture of a $^{6}\mathrm{Li}\text{\ensuremath{-}}^{40}\mathrm{K}$ gas in one dimension using the continuous matrix product states variational ansatz and obtain the T=0T=0T=0 phase diagram. We predict an axial density profile that contains four distinct phases trapped induced along one-dimensional (1D) tubes, which is more intricate than those observed in 1D mass-balanced systems or in higher-dimensional gas clouds. The parameter regimes explored are realistic in view of possible future experiments. This is an application of continuous matrix product states to a nonintegrable fermionic system.