35 citations · 120 across the 13 of their papers we have counts for
13 papers
Josephson dynamics and localization revivals in ultradilute quantum liquids
Piotr Wysocki, Krzysztof Jachymski, Grigori E. Astrakharchik +1
We study the Josephson junction made of a one-dimensional ultradilute quantum liquid in a double-well potential. We analyze the dynamics as a function of the interaction strength a…
Self-Assembled Chains and Solids of Dipolar Atoms in a Multilayer
G. Guijarro, G. E. Astrakharchik, G. Morigi +1
We predict that ultracold bosonic dipolar gases, confined within a multilayer geometry, may undergo self-assembling processes, leading to the formation of chain gases and solids. T…
Superfluid fraction of interacting bosonic gases
Daniel Pérez-Cruz, Grigori E. Astrakharchik, Pietro Massignan
The superfluid fraction of a quantum fluid is defined in terms of the response of the system to a weak and constant drag. Notably, Leggett long ago derived two simple expressio…
Superfluid rings as quantum pendulums
Antonio Muñoz Mateo, Grigory E. Astrakharchik, Bruno Juliá-Díaz
A feasible experimental proposal to realize a non-dispersive quantum pendulum is presented. The proposed setup consists of an ultracold atomic cloud, featuring attractive interatom…
Gas-to-soliton transition of attractive bosons on a spherical surface
A. Tononi, G. E. Astrakharchik, D. S. Petrov
We investigate the ground state properties of bosons with attractive zero-range interactions characterized by the scattering length and confined to the surface of a spher…
Asymmetric Bethe Ansatz
Steven G. Jackson, Hélène Perrin, Gregory E. Astrakharchik +1
The recently proposed exact quantum solution for two -function-interacting particles with a mass-ratio in a hard-wall box [Y. Liu, F. Qi, Y. Zhang and S. Chen, iScienc…
Quantum droplets with particle imbalance in one-dimensional optical lattices
Jofre Vallès-Muns, Ivan Morera, Grigori E. Astrakharchik +1
We study the formation of particle-imbalanced quantum droplets in a one-dimensional optical lattice containing a binary bosonic mixture at zero temperature. To understand the effec…
Thermal fading of the -tail of the momentum distribution induced by the hole anomaly
Giulia De Rosi, Grigori E. Astrakharchik, Maxim Olshanii +1
We study the thermal behavior of correlations in a one-dimensional Bose gas with tunable interaction strength, crossing from weakly-repulsive to Tonks-Girardeau regime. A reference…
Correlation properties of a one-dimensional repulsive Bose gas at finite temperature
Giulia De Rosi, Riccardo Rota, Grigori E. Astrakharchik +1
We present a comprehensive study shedding light on how thermal fluctuations affect correlations in a Bose gas with contact repulsive interactions in one spatial dimension. The pair…
Many-body bound states and induced interactions of charged impurities in a bosonic bath
G. E. Astrakharchik, L. A. Peña Ardila, K. Jachymski +1
Induced interactions and bound states of charge carriers immersed in a quantum medium are crucial for the investigation of quantum transport. Ultracold atom-ion systems can provide…
Superexchange Liquefaction of Strongly Correlated Lattice Dipolar Bosons
Ivan Morera, Rafał Ołdziejewski, Grigori E. Astrakharchik +1
We propose a mechanism for liquid formation in strongly correlated lattice systems. The mechanism is based on an interplay between long-range attraction and superexchange processes…
Ultradilute quantum liquid of dipolar atoms in a bilayer
G. Guijarro, G. E. Astrakharchik, J. Boronat
We show that ultradilute quantum liquids can be formed with ultracold bosonic dipolar atoms in a bilayer geometry. Contrary to previous realizations of ultradilute liquids, there i…
The dynamics of digits: Calculating pi with Galperin's billiards
X. M. Aretxabaleta, M. Gonchenko, N. L. Harshman +3
In Galperin billiards, two balls colliding with a hard wall form an analog calculator for the digits of the number . This classical, one-dimensional three-body system (counting…