21 citations · 69 across the 15 of their papers we have counts for
15 papers
Mobile impurity interacting with a Hubbard chain and the role of Friedel oscillations
Felipe Isaule, Abel Rojo-Francàs, Duc Tuan Hoang +3
This work examines a mobile impurity interacting with a bath of a few spin- and spin- fermions in a small one-dimensional open lattice system. We study ground…
Quantum Monte Carlo study of systems interacting via long-range interactions mediated by a cavity
Marta Domínguez-Navarro, Abel Rojo-Francàs, Bruno Juliá-Díaz +1
We study one-dimensional quantum gases in continuous space with cavity-mediated infinite-range interactions using the variational and the diffusion Monte Carlo methods. Starting fr…
Coordinate space representation of a one-dimensional odd-parity pseudopotential
Marc Camus-Sais, Abel Rojo-Francàs, 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…
Bose-Einstein condensation in exotic lattice geometries
Kamil Dutkiewicz, Marcin Płodzień, Abel Rojo-Francàs +3
Modern quantum engineering techniques allow for synthesizing quantum systems in exotic lattice geometries, from self-similar fractal networks to negatively curved hyperbolic graphs…
Counterflow of lattice polarons in harmonically confined optical lattices
Felipe Isaule, Abel Rojo-Francàs, Luis Morales-Molina +1
We study a mobile impurity in a one-dimensional harmonically confined optical lattice interacting repulsively with a bosonic bath. The behavior of the impurity across baths with su…
Bardeen-Cooper-Schrieffer State Representation and Pairing in the Fermionic Tonks-Girardeau Gas
Francesc Sabater, Abel Rojo-Francàs, Grigori E. Astrakharchik +1
We introduce an alternative expression for the ground state wave function of the fermionic Tonks-Girardeau gas. Our wave function is constructed based on the occupation numbers and…
Stable collective charging of ultracold atoms quantum batteries
Abel Rojo-Francàs, Felipe Isaule, Alan C. Santos +2
We propose a novel quantum battery realized with a few interacting particles in a three-well system with different on-site energies, which could be realized with ultracold atom pla…
Enhanced strong interaction effect in synthetic spin-orbit coupling with mixed spin symmetry
Ayaka Usui, Abel Rojo-Francàs, James Schloss +1
Synthetic spin-orbit coupling in cold atoms couples the pseudo-spin and spatial degrees of freedom, and therefore the inherent spin symmetry of the system plays an important role.…
Bound impurities in a one-dimensional Bose lattice gas: low-energy properties and quench-induced dynamics
Felipe Isaule, Abel Rojo-Francàs, Bruno Juliá-Díaz
We study two mobile bosonic impurities immersed in a one-dimensional optical lattice and interacting with a bosonic bath. We employ the exact diagonalization method for small perio…
Anomalous quantum transport in fractal lattices
Abel Rojo-Francàs, Priyanshu Pansari, Utso Bhattacharya +2
Fractal lattices are self-similar structures with repeated patterns on different scales. As in other aperiodic lattices, the absence of translational symmetry can give rise to quan…
Universal composite boson formation in strongly interacting one-dimensional fermionic systems
Francesc Sabater, Abel Rojo-Francàs, Grigori E. Astrakharchik +1
Attractive -wave one-dimensional fermions are studied in the fermionic Tonks-Girardeau regime in which the diagonal properties are shared with those of an ideal Bose gas. We stu…
Machine learning one-dimensional spinless trapped fermionic systems with neural-network quantum states
J. W. T. Keeble, M. Drissi, A. Rojo-Francàs +2
We compute the ground-state properties of fully polarized, trapped, one-dimensional fermionic systems interacting through a gaussian potential. We use an antisymmetric artificial n…
Few particles with an impurity in a one-dimensional harmonic trap
Abel Rojo-Francàs, Felipe Isaule, Bruno Juliá-Díaz
We present a comprehensive study of the static properties of a mobile impurity interacting with a bath with a few particles trapped in a one-dimensional harmonic trap. We consider…
On the direct diagonalization method for a few particles trapped in harmonic potentials
Abel Rojo-Francàs, Felipe Isaule, Bruno Juliá-Díaz
We describe a procedure to systematically improve direct diagonalization results for few-particle systems trapped in one-dimensional harmonic potentials interacting by contact inte…
Static and dynamic properties of a few spin interacting fermions trapped in an harmonic potential
Abel Rojo-Francàs, Artur Polls, Bruno Juliá-Díaz
We provide a detailed study of the properties of a few interacting spin fermions trapped in a one-dimensional harmonic oscillator potential. The interaction is assumed to be…