11 papers
Exotic critical states as fractional Fermi seas in the one-dimensional Bose gas
Alvise Bastianello, Yi Zeng, Sudipta Dhar +7
Critical quantum field theories occupy a central position in modern theoretical physics for their inherent universality stemming from long-range correlations. As an example, the To…
Realization of fractional Fermi seas
Yi Zeng, Alvise Bastianello, Sudipta Dhar +7
The Pauli exclusion principle is a cornerstone of quantum physics: it governs the structure of matter. Extensions of this principle, such as Haldane's generalized exclusion statist…
Superfluid response of bosonic fluids in composite optical potentials: angular dependence and Leggett's bounds
Daniel Pérez-Cruz, Grigori E. Astrakharchik, Pietro Massignan
We study the superfluid response of a dilute bosonic fluid in the presence of two-dimensional composite potentials (such as triangular, Kagomé and quasiperiodic potentials, or sup…
Coordinate space representation of a one-dimensional odd-parity pseudopotential
Marc Camus-Sais, Abel Rojo-Francà s, Grigori E. Astrakharchik +1
We propose a discrete-space representation of a one-dimensional zero-range odd-parity pseudopotential. The proposed representation is validated by applying it to the analytically s…
Quantum Monte Carlo study of systems interacting via long-range interactions mediated by a cavity
Marta DomÃnguez-Navarro, Abel Rojo-Francà s, Bruno Juliá-DÃaz +1
We study one-dimensional quantum gases in continuous space with cavity-mediated infinite-range interactions using variational and diffusion Monte Carlo methods. Starting from the e…
Realization of repulsive polarons in the strongly correlated regime
René Henke, Jesper Levinsen, Meera M. Parish +4
Mobile impurities interacting with a quantum medium form quasiparticles known as polarons, a central concept in many-body physics. While the quantum impurity problem has been exten…