Zobrazeno 1 - 10
of 2 794
pro vyhledávání: '"Caldarelli, P."'
For the large class of systems described via a time-dependent self-consistent mean field Hamiltonian including (screened) Hartree-Fock exchange, we demonstrate that any electronic linear response function allows for a formulation which is variational
Externí odkaz:
http://arxiv.org/abs/2410.22889
In crystalline materials, low lattice thermal conductivity is often associated with strong anharmonicity, which can cause significant deviations from the expected Lorentzian lineshape of phonon spectral functions. These deviations, occurring in an ov
Externí odkaz:
http://arxiv.org/abs/2410.13485
We show that the many-body features of graphene band structure and electronic response can be accurately evaluated by applying many-body perturbation theory to a tight-binding (TB) model. In particular, we compare TB results for the optical conductiv
Externí odkaz:
http://arxiv.org/abs/2409.17645
Autor:
Gili, Tommaso, Avila, Bryant, Pasquini, Luca, Holodny, Andrei, Phillips, David, Boldi, Paolo, Gabrielli, Andrea, Caldarelli, Guido, Zimmer, Manuel, Makse, Hernán A.
In his book 'A Beautiful Question', physicist Frank Wilczek argues that symmetry is 'nature's deep design,' governing the behavior of the universe, from the smallest particles to the largest structures. While symmetry is a cornerstone of physics, it
Externí odkaz:
http://arxiv.org/abs/2409.02674
Publikováno v:
J. Stat. Mech.: Theory Exp. 2024, 084002 (2024)
The renormalization group (RG) constitutes a fundamental framework in modern theoretical physics. It allows the study of many systems showing states with large-scale correlations and their classification in a relatively small set of universality clas
Externí odkaz:
http://arxiv.org/abs/2406.02337
Autor:
De Domenico, Manlio, Allegri, Luca, Caldarelli, Guido, d'Andrea, Valeria, Di Camillo, Barbara, Rocha, Luis M., Rozum, Jordan, Sbarbati, Riccardo, Zambelli, Francesco
The adoption of digital twins (DTs) in precision medicine is increasingly viable, propelled by extensive data collection and advancements in artificial intelligence (AI), alongside traditional biomedical methodologies. However, the reliance on black-
Externí odkaz:
http://arxiv.org/abs/2405.09649
Community detection algorithms try to extract a mesoscale structure from the available network data, generally avoiding any explicit assumption regarding the quantity and quality of information conveyed by specific sets of edges. In this paper, we sh
Externí odkaz:
http://arxiv.org/abs/2405.04896
Autor:
Moi, Jacopo, Chirici, Gherardo, Chiesi, Leonardo, Francini, Saverio, Borghi, Costanza, Costa, Paolo, Gramellini, Bianca, Caldarelli, Guido
Green areas are a crucial element in evolution of a city, contributing to improve citizens' life, to reduce effects of climate change, and to make possible the survival of other species in urban areas. Unfortunately, the above effects are difficult t
Externí odkaz:
http://arxiv.org/abs/2404.12902
Autor:
Caldarelli, Edoardo, Chatalic, Antoine, Colomé, Adrià, Molinari, Cesare, Ocampo-Martinez, Carlos, Torras, Carme, Rosasco, Lorenzo
In this paper, we study how the Koopman operator framework can be combined with kernel methods to effectively control nonlinear dynamical systems. While kernel methods have typically large computational requirements, we show how random subspaces (Nys
Externí odkaz:
http://arxiv.org/abs/2403.02811
Autor:
Tsekenis, Georgios, Cimini, Giulio, Kalafatis, Marinos, Giacometti, Achille, Gili, Tommaso, Caldarelli, Guido
Publikováno v:
Scientific Reports 14:5266 (2024)
We define bipartite and monopartite relational networks of chemical elements and compounds using two different datasets of inorganic chemical and material compounds, as well as study their topology. We discover that the connectivity between elements
Externí odkaz:
http://arxiv.org/abs/2402.11774