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pro vyhledávání: '"Tocchio, A."'
We study a three-orbital Hubbard-Kanamori model relevant for iron-based superconductors using variational wave functions, which explicitly include spatial correlations and electron pairing. We span the nonmagnetic sector ranging from a filling $n=4$,
Externí odkaz:
http://arxiv.org/abs/2406.13634
Publikováno v:
J. Phys.: Condens. Matter 36, 395602 (2024)
We perform variational Monte Carlo simulations of the single-band Hubbard model on the square lattice with both nearest ($t$) and next-nearest ($t'$) neighbor hoppings. Our work investigates the consequences of increasing hole doping on the instaurat
Externí odkaz:
http://arxiv.org/abs/2403.02073
Autor:
Iguaz, F. J., Bombelli, L., Meo, S., Orsini, F., Schöeder, S., Tocchio, A., Trcera, N., Vantelon, D.
Publikováno v:
2023 JINST 18 T06011
DANTE is a new Digital Pulse Processor (DPP) developed for fluorescence detectors, like silicon drift detectors (SDDs) or High Purity Germanium detectors (HPGe), used in X-ray Fluorescence (XRF) and X-ray Absorption Spectroscopy (XAS) experiments at
Externí odkaz:
http://arxiv.org/abs/2303.09479
Autor:
Wu, Dian, Rossi, Riccardo, Vicentini, Filippo, Astrakhantsev, Nikita, Becca, Federico, Cao, Xiaodong, Carrasquilla, Juan, Ferrari, Francesco, Georges, Antoine, Hibat-Allah, Mohamed, Imada, Masatoshi, Läuchli, Andreas M., Mazzola, Guglielmo, Mezzacapo, Antonio, Millis, Andrew, Moreno, Javier Robledo, Neupert, Titus, Nomura, Yusuke, Nys, Jannes, Parcollet, Olivier, Pohle, Rico, Romero, Imelda, Schmid, Michael, Silvester, J. Maxwell, Sorella, Sandro, Tocchio, Luca F., Wang, Lei, White, Steven R., Wietek, Alexander, Yang, Qi, Yang, Yiqi, Zhang, Shiwei, Carleo, Giuseppe
Publikováno v:
Science 386, 296-301 (2024)
The continued development of computational approaches to many-body ground-state problems in physics and chemistry calls for a consistent way to assess its overall progress. In this work, we introduce a metric of variational accuracy, the V-score, obt
Externí odkaz:
http://arxiv.org/abs/2302.04919
Autor:
Tocchio, Gabriel Guilhen, Neto, Ismael de Marchi, da Silva, Rodrigo Corrêa, de Lima, Rafael Sene, Salvo, Ricardo de Vasconcelos, Galante, Renan Manozzo, Michels, Roger Nabeyama
Publikováno v:
In Journal of Building Engineering 1 November 2024 96
Publikováno v:
SciPost Phys. 12, 180 (2022)
By using variational quantum Monte Carlo techniques, we investigate the instauration of stripes (i.e., charge and spin inhomogeneities) in the Hubbard model on the square lattice at hole doping $\delta=1/8$, with both nearest- ($t$) and next-nearest-
Externí odkaz:
http://arxiv.org/abs/2111.04623
Publikováno v:
Phys. Rev. Research 3, 043082 (2021)
The existence of a gapped chiral spin liquid has been recently suggested in the vicinity of the metal-insulator transition of the Hubbard model on the triangular lattice, by intensive density-matrix renormalization group (DMRG) simulations [A. Szasz,
Externí odkaz:
http://arxiv.org/abs/2105.00920
Publikováno v:
Phys. Rev. B 102, 115150 (2020)
The Hubbard model and its strong-coupling version, the Heisenberg one, have been widely studied on the triangular lattice to capture the essential low-temperature properties of different materials. One example is given by transition metal dichalcogen
Externí odkaz:
http://arxiv.org/abs/2005.09345
Akademický článek
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Metallic and insulating stripes and their relation with superconductivity in the doped Hubbard model
Publikováno v:
SciPost Phys. 7, 021 (2019)
The dualism between superconductivity and charge/spin modulations (the so-called stripes) dominates the phase diagram of many strongly-correlated systems. A prominent example is given by the Hubbard model, where these phases compete and possibly coex
Externí odkaz:
http://arxiv.org/abs/1905.02658