Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Francesco Cianfrani"'
Autor:
Francesco Cianfrani, Giovanni Montani
Publikováno v:
Physics Letters B, Vol 769, Iss C, Pp 328-332 (2017)
We re-analyze the physical conditions for Magneto-rotational Instability (MRI) within a steady axisymmetric stratified disk of plasma, in order to account for the so-called isorotation theory (the spatial profile of differential angular velocity depe
Externí odkaz:
https://doaj.org/article/91e7d79e8aef427bafc24cabd74fefea
Publikováno v:
Entropy, Vol 21, Iss 4, p 394 (2019)
The most widely used forms of model selection criteria, the Bayesian Information Criterion (BIC) and the Akaike Information Criterion (AIC), are expressed in terms of synthetic indicators of the residual distribution: the variance and the mean-square
Externí odkaz:
https://doaj.org/article/5043cabb1da24d8e92019fb0afd427f2
This book aims to present a pedagogical and self-consistent treatment of the canonical approach to Quantum Gravity, starting from its original formulation to the most recent developments in the field.We start with an innovative and enlightening intro
A new mechanism for pressure profile relaxations in an edge tokamak plasma is derived from simulations within the two-fluid three-dimensional turbulence code EMEDGE3D. The relaxation is due to diamagnetic coupling in the resistive ballooning/drift wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0b273d29dbbbd7bf5418152505a10b3
Autor:
Francesco Cianfrani
Publikováno v:
Class.Quant.Grav.
Class.Quant.Grav., 2021, 38 (24), pp.245002. ⟨10.1088/1361-6382/ac33bd⟩
Class.Quant.Grav., 2021, 38 (24), pp.245002. ⟨10.1088/1361-6382/ac33bd⟩
A manifestly Lorentz-covariant formulation of Loop Quantum Gravity (LQG) is given in terms of finite-dimensional representations of the Lorentz group. The formulation accounts for discrete symmetries, such as parity and time-reversal, and it establis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5adab5906c970c1e55e7dee49b85e8ef
https://hal.archives-ouvertes.fr/hal-03171406
https://hal.archives-ouvertes.fr/hal-03171406
We describe the evolution of a plasma equilibrium having a toroidal topology in the presence of constant electric resistivity. After outlining the main analytical properties of the solution, we illustrate its physical implications by reproducing the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6f18d01a2b5a3e8cdd65c7838e3058f
Publikováno v:
Nuclear Fusion
We investigate for a generic tokamak equilibrium the performance of alpha channelling driven by a mode-converted ion Bernstein wave with the effect of Alfvenic turbulence accounted for through an outward particle flux at the threshold magnetic moment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7132855f30b12a726b7453a499c81667
Publikováno v:
Physics of Plasmas. 28:012503
Alpha particle channeling, the attempt to extract energy from high-energy fusion alpha particles using a combination of high- and low-frequency waves introduced in the plasma with antennae, is studied using a guiding center code. We examine the effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::469642a8194ff5bb520a100a361f557d
https://doi.org/10.1063/5.0033497
https://doi.org/10.1063/5.0033497
We analyse the semi-classical and quantum dynamics of the isotropic Universe in the framework of the Polymer Quantum mechanics, in order to implement a cut-off physics on the initial singularity. We first identify in the Universe cubed scale factor (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe5ef7a08d5562bdeae5afe760cf3730
http://arxiv.org/abs/1806.10364
http://arxiv.org/abs/1806.10364
Publikováno v:
Nuclear Fusion
We investigate the simplest model of alpha channelling, in which high-frequency electrostatic wave interacts with fusion alpha particles and the effect of low-frequency waves is modeled by an outward flux of particles at the threshold energy E w for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c81289bfd17676c428626f027d62bf9