Zobrazeno 1 - 10
of 1 231
pro vyhledávání: '"Castro G, P."'
We compute the branching fractions of vector quarkonia ($V_Q=J/\psi, \psi', \Upsilon(nS)$) decays into neutrino pairs, considering both Dirac and Majorana types, within the Standard Model (SM) and beyond. The vector nature of quarkonium states yields
Externí odkaz:
http://arxiv.org/abs/2411.09124
Impurities immersed in hard-core Bose gases offer exciting opportunities to explore polaron and bipolaron physics. We investigate the ground state properties of a single and a pair of impurities throughout the superfluid and insulating (charge densit
Externí odkaz:
http://arxiv.org/abs/2411.06275
We introduce a refined tight-binding (TB) model for Pt-based jacutingaite materials Pt$_{2}N$X$_{3}$, ($N$ = Zn, Cd, Hg; X = S, Se, Te), offering a detailed representation of the low-energy physics of its monolayers. This model incorporates all eleme
Externí odkaz:
http://arxiv.org/abs/2410.07522
Autor:
Fernandez-Lopez, M., Benaglia, P., Cichowolski, S., Correra, F. S., Cristiani, G., Dominici, T. P., Duronea, N., de Castro, G. Gimenez, Lepine, J. R. D., Mirabel, I. F., Raulin, J. P., Saldano, H., Suad, L., Valotto, C.
The Large Latin American Millimeter Array (LLAMA for short) is a joint scientific and technological undertaking of Argentina and Brazil whose goal is to install and to operate an observing facility capable of performing observations of the Universe a
Externí odkaz:
http://arxiv.org/abs/2312.12210
Ultracold dipolar particles pinned in optical lattices or tweezers provide an excellent platform for studying out-of-equilibrium quantum magnetism with dipole-mediated couplings. Starting with an initial state with spins of opposite orientation in ea
Externí odkaz:
http://arxiv.org/abs/2311.18091
Autor:
Łącki, Mateusz, Korbmacher, Henning, Domínguez-Castro, G. A., Zakrzewski, Jakub, Santos, Luis
Publikováno v:
PhysRevB 109, 125104 (2024)
Recent experiments on ultracold dipoles in optical lattices open exciting possibilities for the quantum simulation of extended Hubbard models. When considered in one dimension, these models present at unit filling a particularly interesting ground-st
Externí odkaz:
http://arxiv.org/abs/2311.14606
Polar lattice gases are usually assumed to have an inter-site interaction that decays with the inter-particle distance $r$ as $1/r^3$. However, a loose-enough transversal confinement may strongly modify the dipolar decay in one-dimensional lattices.
Externí odkaz:
http://arxiv.org/abs/2303.07217
Publikováno v:
Phys. Rev. A 108, 013313 (2023)
We study the temporal growth and spatial propagation of quantum correlations in a two-dimensional bilayer realising a spin-1/2 quantum XXZ model with couplings mediated by long-range and anisotropic dipolar interactions. Starting with an initial stat
Externí odkaz:
http://arxiv.org/abs/2302.09059
Autor:
Ding, Shanshan, Domínguez-Castro, G. A., Julku, Aleksi, Camacho-Guardian, Arturo, Bruun, Georg M.
Publikováno v:
SciPost Phys. 14, 143 (2023)
Quasiparticles and their interactions are a key part of our understanding of quantum many-body systems. Quantum simulation experiments with cold atoms have in recent years advanced our understanding of isolated quasiparticles, but so far they have pr
Externí odkaz:
http://arxiv.org/abs/2212.00890
We show that the long-distance behavior of the two-body density correlation functions and the Cooper-pair probability density of a balanced mixture of a two-component Fermi gas at $T = 0$, is universal along the BEC-BCS crossover. Our result is demon
Externí odkaz:
http://arxiv.org/abs/2211.03832