Exploració per autor "Astrakharchik, Grigori"
Ara es mostren els items 53-58 de 58
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Ultradilute low-dimensional liquids
Petrov, D. S.; Astrakharchik, Grigori (2016-09-01)
Article
Accés obertWe calculate the energy of one- and two-dimensional weakly interacting Bose-Bose mixtures analytically in the Bogoliubov approximation and by using the diffusion Monte Carlo technique. We show that in the case of attractive ... -
Ultradilute quantum liquid of dipolar atoms in a bilayer
Guijarro Gámez, Grecia; Astrakharchik, Grigori; Boronat Medico, Jordi (American Institute of Physics (AIP), 2022-02-11)
Article
Accés obertWe 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 is no need for stabilizing the system with ... -
Universal dimerized quantum droplets in a one-dimensional lattice
Morera Navarro, Iván; Astrakharchik, Grigori; Polls Martí, Artur; Julia Diaz, Bruno (American Institute of Physics (AIP), 2021-01-11)
Article
Accés obertThe ground-state properties of two-component bosonic mixtures in a one-dimensional optical lattice are studied both from few- and many-body perspectives. We rely directly on a microscopic Hamiltonian with attractive ... -
Universal properties of anisotropic dipolar bosons in two dimensions
Sánchez Baena, Juan; Peña Ardila, Luis Aldemar; Astrakharchik, Grigori; Mazzanti Castrillejo, Fernando Pablo (2022-08-25)
Article
Accés obertThe energy of ultra-dilute quantum many-body systems is known to exhibit a universal dependence on the gas parameter x = n a d 0 , with n the density, d the dimensionality of the space ( d = 1 , 2 , 3 ) and a 0 the s -wave ... -
Universality in ultradilute liquid Bose-Bose mixtures
Cikojevic, V.; Vranješ Markic, Leandra; Astrakharchik, Grigori; Boronat Medico, Jordi (American Physical Society (APS), 2019-02-13)
Article
Accés obertWe have studied dilute Bose-Bose mixtures of atoms with attractive interspecies and repulsive intraspecies interactions using quantum Monte Carlo methods at T=0. Using a number of models for interactions, we determine the ... -
Zero-temperature phase diagram of Yukawa bosons
Osychenko, O.N.; Astrakharchik, Grigori; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi (2012)
Article
Accés obertWe study the zero-temperature phase diagram of bosons interacting via screened Coulomb (Yukawa) potential by means of the diffusion Monte Carlo method. The Yukawa potential is used as a model interaction in the neutron ...