Zobrazeno 1 - 10
of 27 274
pro vyhledávání: '"Giovannini A."'
A multiscale QM/classical approach is presented, that is able to model the optical properties of complex nanostructures composed of a molecular system adsorbed on metal nanoparticles. The latter are described by a combined atomistic-continuum model,
Externí odkaz:
http://arxiv.org/abs/2410.21168
Autor:
Giovannini, Massimo
According to the microscopic formulation of Landauer's principle, when information is deleted the Von Neumann entropy of the system gets reduced with a corresponding energy cost. Although within the same perspective the growth of the entropy should r
Externí odkaz:
http://arxiv.org/abs/2409.20417
Autor:
Sepali, Chiara, Goletto, Linda, Lafiosca, Piero, Rinaldi, Matteo, Giovannini, Tommaso, Cappelli, Chiara
A multiscale model based on the coupling of the multiconfigurational self-consistent field (MCSCF) method and the classical atomistic polarizable Fluctuating Charges (FQ) force field is presented. The resulting MCSCF/FQ approach is validated by explo
Externí odkaz:
http://arxiv.org/abs/2408.14891
In a porous medium featuring heterogeneous permeabilities, a wide range of fluid velocities may be recorded, so that significant inertial and frictional effects may arise in high-speed regions. In such parts, the link between pressure gradient and ve
Externí odkaz:
http://arxiv.org/abs/2408.00533
A novel fully atomistic multiscale classical approach to model the optical response of solvated real-size plasmonic nanoparticles (NPs) is presented. The model is based on the coupling of the Frequency Dependent Fluctuating Charges and Fluctuating Di
Externí odkaz:
http://arxiv.org/abs/2407.02650
Autor:
Lafiosca, Piero, Nicoli, Luca, Pipolo, Silvio, Corni, Stefano, Giovannini, Tommaso, Cappelli, Chiara
Investigating nanoplasmonics using time-dependent approaches permits shedding light on the dynamic optical properties of plasmonic structures, which are intrinsically connected with their potential applications in photochemistry and photoreactivity.
Externí odkaz:
http://arxiv.org/abs/2406.10926
Autor:
Giovannini, Massimo
Since the relic gravitons are produced in entangled states of opposite (comoving) three-momenta, their distributions and their averaged multiplicities must determine the maximal frequency of the spectrum above which the created pairs are exponentiall
Externí odkaz:
http://arxiv.org/abs/2406.10169
Autor:
Krezinger, Máté, Baldini, Giovanni, Giroletti, Marcello, Sbarrato, Tullia, Ghisellini, Gabriele, Giovannini, Gabriele, An, Tao, Gabányi, Krisztina É., Frey, Sándor
Publikováno v:
A&A, Volume 690, A321, 14 (2024)
Over the past two decades, our knowledge of the high-redshift (z > 5) radio quasars has expanded, thanks to dedicated high-resolution very long baseline interferometry (VLBI) observations. Distant quasars provide unique information about the formatio
Externí odkaz:
http://arxiv.org/abs/2406.05192
We provide conditions under which a Riemann surface $X$ is the asymptotic boundary of a convex co-compact hyperbolic manifold, homeomorphic to a handlebody, of negative renormalized volume. We prove that this is the case when there are on $X$ enough
Externí odkaz:
http://arxiv.org/abs/2405.07598
Autor:
Giovannini, Massimo
Stationary processes do not accurately describe the diffuse backgrounds of relic gravitons whose correlations are homogeneous in space (i.e. only dependent upon the distance between the two spatial locations) but not in time. The symmetries of the au
Externí odkaz:
http://arxiv.org/abs/2405.02193