Zobrazeno 1 - 10
of 2 606
pro vyhledávání: '"Borzì, A"'
In this work, we explore the magnetic behavior of diluted spin-ice systems, where magnetic moments are randomly removed at various concentrations. We concentrate on features in which the effect of long range dipolar interactions (usually masked by se
Externí odkaz:
http://arxiv.org/abs/2411.04738
The Lindblad equation is a widely used quantum master equation to model the dynamical evolution of open quantum systems whose states are described by density matrices. These solution matrices are characterized by semi-positiveness and trace preservin
Externí odkaz:
http://arxiv.org/abs/2408.13601
Autor:
Szabo, Attila, Grigera, Santiago A., Holdsworth, P. C. W., Jaubert, Ludovic D. C., Moessner, Roderich, Slobinsky, Demian G., Sturla, Mauricio, Borzi, Rodolfo A.
We investigate a simple variant of spin ice whose degenerate ground states are densely packed monopole configurations. An applied field drives this model through a Z2 confinement transition, in absence of any local order parameter. Instead, this hidd
Externí odkaz:
http://arxiv.org/abs/2406.09336
Autor:
Sigcha, Luis, Borzì, Luigi, Pavón, Ignacio, Costa, Nélson, Costa, Susana, Arezes, Pedro, López, Juan-Manuel, De Arcas, Guillermo
Publikováno v:
Engineering Applications of Artificial Intelligence Volume 116, November 2022, 105482
Freezing of gait (FOG) is one of the most incapacitating symptoms in Parkinsons disease, affecting more than 50 percent of patients in advanced stages of the disease. The presence of FOG may lead to falls and a loss of independence with a consequent
Externí odkaz:
http://arxiv.org/abs/2404.03704
Autor:
Borzì, Alessio
We characterize the realizability of a quotient of matroids, over an infinite field $K$, in terms of the realizability over $K$ of a single matroid associated to it, called the Higgs major. This result extends to realizability of flag matroids. Furth
Externí odkaz:
http://arxiv.org/abs/2403.03615
A new optimization framework to design steady equilibrium solutions of the Vlasov-Poisson system by means of external electric fields is presented. This optimization framework requires the minimization of an ensemble functional with Tikhonov regulari
Externí odkaz:
http://arxiv.org/abs/2402.09306
A framework for reconstruction of optical diffusion and absorption coefficients in quantitative photoacoustic tomography is presented. This framework is based on a Tikhonov-type functional with a regularization term promoting sparsity of the absorpti
Externí odkaz:
http://arxiv.org/abs/2401.17569
Autor:
Annunziato, Mario, Borzì, Alfio
A method for the analysis of superresolution microscopy images is presented. This method is based on the analysis of stochastic trajectories of particles moving on the membrane of a cell with the assumption that this motion is determined by the prope
Externí odkaz:
http://arxiv.org/abs/2311.04627
In this paper, we examine the magnetoelectric response of Ising pyrochlores, focusing on both the ordered antiferromagnetic state and the frustrated ferromagnetic case known as "spin-ice". We employ a model which accounts for magnetoelastic effects b
Externí odkaz:
http://arxiv.org/abs/2310.17377
Autor:
Bartsch, Jan, Borzi, Alfio
The construction of feedback-like control fields for a kinetic model in phase space is investigated. The purpose of these controls is to drive an initial density of particles in the phase space to reach a desired cyclic trajectory and follow it in a
Externí odkaz:
http://arxiv.org/abs/2309.00896