Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Malvezzi, André L."'
Publikováno v:
Scientific Reports 13 (2023)
Machine learning has revolutionized many fields of science and technology. Through the $k$-Nearest Neighbors algorithm, we develop a model-independent classifier, where the algorithm can classify phases of a model to which it has never had access. Fo
Externí odkaz:
http://arxiv.org/abs/2109.00625
Publikováno v:
Phys. Rev. B 73, 193407 (2006)
We discuss the interplay between electronic correlations and an underlying superlattice structure in determining the period of charge density waves (CDW's), by considering a one-dimensional Hubbard model with a repeated (non-random) pattern of repuls
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604523
Publikováno v:
Phys. Rev. B 66, 064430 (2002)
We consider fermions in one-dimensional superlattices (SL's), modeled by site-dependent Hubbard-U couplings arranged in a repeated pattern of repulsive (i.e., U>0) and free (U=0) sites. Density Matrix Renormalization Group (DMRG) diagonalization of f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205266
Autor:
Laukamp, Markus, Martins, George Balster, Gazza, Claudio J., Malvezzi, Andre L., Dagotto, Elbio, Hansen, Patricia M., Lopez, Alfredo C., Riera, Jose
Spin models that have been proposed to describe dimerized chains, ladders, two dimensional antiferromagnets, and other compounds are here studied when some spins are replaced by spinless vacancies, such as it occurs by $Zn$ doping. A small percentage
Externí odkaz:
http://arxiv.org/abs/cond-mat/9707261
Akademický článek
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