A5013033573- Cosmology and Gravitation Theories
- Relativity and Gravitational Theory
- Black Holes and Theoretical Physics
- Quantum Mechanics and Applications
- Geophysics and Gravity Measurements
- Pulsars and Gravitational Waves Research
- Quantum Electrodynamics and Casimir Effect
- Galaxies: Formation, Evolution, Phenomena
- Quantum chaos and dynamical systems
- Nonlinear Dynamics and Pattern Formation
- Astrophysics and Cosmic Phenomena
- Noncommutative and Quantum Gravity Theories
University of Insubria
2020-2021
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2021
We follow an old suggestion made by Stueckelberg that there exists intimate connection between weak interaction and gravity, symbolized the relationship Fermi Newton\rq s constants. analyze hypothesis effect of matter upon metric represents gravitational in General Relativity is effective one. This leads us to consider gravitation be result two neutral spinorial fields (G-neutrinos) $ \Psi_{g}$ \Omega_{g}$ with all kinds energy. present three examples only one G-neutrino: static spherically...
We analyze the gravitational waves within Spinor Theory of Gravity and compare it with General Relativity proposal. In case STG a wave may occur if effective metric induced by spinorial field is Ricci flat.
We show that in the realm of general relativity a non minimal coupling between electromagnetic and gravitational fields may produce an era accelerated expansion.
We analyze the recently obtained static and spherically symmetric solution of Spinor Theory Gravity (STG) which, in weak field limit, presents an effective Newtonian potential that contains extra logarithmic behavior. apply this to description galaxy rotation curves finding interesting analogy with dark matter halo profile proposed by Navarro, Frenk White.
An integral translation of Paolo Gulmanelli's seminar notes "Su una teoria dello spin isotopico" (Casa Editrice, Milano, 1957) is presented. This the only exposition that contains all elements Pauli's attempt at a non-Abelian Kaluza-Klein theory in 1953.
In a recent paper we have analyzed the Spinor Theory of Gravity (STG) which is based on intimate relation between Fermi (weak) interaction and gravity. We presented hypothesis that effect matter upon metric represents gravitational in General Relativity an effective one. This lead us to consider gravitation be result two neutral spinorial fields (G-neutrinos) $Ψ_g$ $Ω_g$ with all kinds energy through generation such metric. other words, universal framework constructed weak currents...