Repulsive dynamics of strongly attractive one-dimensional quantum gases
arXiv:2107.05594 · doi:10.1103/PhysRevA.105.L011303
Abstract
We analyze the dynamics of one-dimensional quantum gases with strongly attractive contact interactions. We specify a class of initial states for which attractive forces effectively act as strongly repulsive ones during the time evolution. Our findings extend the theoretical results on the super-Tonks-Girardeau gas to a highly nonequilibrium dynamics. The novel mechanism is illustrated on the prototypical problem of the domain stability in a two-component Fermi gas. We also discuss nonlocal interactions and analyze universality of the presented results. Moreover, we use our conclusions to argue for the existence of metastable quantum droplets in the regime of strongly attractive contact and attractive dipolar interactions.
6 pages + 6 pages SM
References in corpus (11)
- The density-matrix renormalization group in the age of matrix product states
- Entanglement entropy for the long range Ising chain
- Time Dependent Variational Principle with Ancillary Krylov Subspace
- Lieb-Liniger model of a dissipation-induced Tonks-Girardeau gas
- Local Correlations in the Super Tonks-Girardeau Gas
- Super-Tonks-Girardeau regime in trapped one-dimensional dipolar gases
- Metastable criticality and the super Tonks-Girardeau gas
- Excitation spectrum of bosons in a finite one-dimensional circular waveguide via the Bethe ansatz
- Exactly solvable model of two trapped quantum particles interacting via finite-range soft-core interactions
- Exploring emergent heterogeneous phases in strongly repulsive Fermi gases
- Many-body molecule formation at a domain wall in a one-dimensional strongly interacting ultracold Fermi gas