Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Andrea Addazi"'
Autor:
Andrea Addazi, Qingyu Gan
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 6, Pp 1-29 (2024)
Abstract We explore superoscillations within the context of classical and quantum field theories, presenting novel solutions to Klein–Gordon’s, Dirac’s, Maxwell’s and Einstein’s equations. In particular, we illustrate a procedure of second
Externí odkaz:
https://doaj.org/article/9bb39eb7b29240779af0333009f87b92
Publikováno v:
Physics Letters B, Vol 851, Iss , Pp 138574- (2024)
We explore the possibility of detecting resonant conversions of high frequency gravitational waves to radio-signals. We show how the graviton-photon transitions, from Gertsenshtein effect, can be resonantly amplified in a cosmological stochastic magn
Externí odkaz:
https://doaj.org/article/7839e7e174804828a10c055a96b2ec0b
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-6 (2023)
Abstract We suggest an appealing strategy to probe a large class of scenarios beyond the Standard Model simultaneously explaining the recent CDF II measurement of the W boson mass and predicting first-order phase transitions (FOPT) testable in future
Externí odkaz:
https://doaj.org/article/2098f2289df6457c882468322851256d
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-18 (2022)
Abstract We propose a novel model of the modified (Starobinsky-like) old-minimal-type supergravity coupled to a chiral matter superfield, that can simultaneously describe multi-field inflation, primordial black hole (PBH) formation, dark matter (DM),
Externí odkaz:
https://doaj.org/article/fd183a1990f94505b2a7874aa62f4bf2
Autor:
Andrea Addazi, Salvatore Capozziello
Publikováno v:
Physics Letters B, Vol 839, Iss , Pp 137828- (2023)
We show that the so-called chaos bound, proposed by Maldacena, Shenker & Stanford, can be violated in f(T) teleparallel gravity. In particular, it is possible to select a new gravitational Lyapunov parameter, controlling chaotization of circular traj
Externí odkaz:
https://doaj.org/article/e1c513add7d04afe8efe7664960ec44a
Autor:
Andrea Addazi, Kaiqiang Alan Zeng
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-25 (2021)
Abstract We derive a universal expression for the gravitational radiation energy spectrum dE GW /dω at sub-leading order emitted from a generic gravitational hard scattering of multi-particles or multi-bodies. Our result includes all O $$ \mathcal{O
Externí odkaz:
https://doaj.org/article/487d4c17d8254cd0bf17ee93c76d4242
Publikováno v:
Physics Letters B, Vol 835, Iss , Pp 137574- (2022)
We further analyze phenomenological implications of double axion monodromy inflation proposed in Ref. (D'Amico et al. [13]), in gravitational wave physics. We show that in addition to chiral gravitational waves (GW) originating from gauge field insta
Externí odkaz:
https://doaj.org/article/3dc846bc515547618059be9b17269f44
Autor:
Kristian Piscicchia, Antonino Marcianò, Andrea Addazi, Diana Laura Sirghi, Massimiliano Bazzi, Nicola Bortolotti, Mario Bragadireanu, Michael Cargnelli, Alberto Clozza, Luca De Paolis, Raffaele Del Grande, Carlo Guaraldo, Mihail Iliescu, Matthias Laubenstein, Simone Manti, Johann Marton, Marco Miliucci, Fabrizio Napolitano, Federico Nola, Alessio Porcelli, Alessandro Scordo, Francesco Sgaramella, Florin Sirghi, Oton Vazquez Doce, Johann Zmeskal, Catalina Curceanu
Publikováno v:
Universe, Vol 9, Iss 7, p 321 (2023)
This study is aimed to set severe constraints on a whole class of non-commutative space-times scenarios as a class of universality for several quantum gravity models. To this end, slight violations of the Pauli exclusion principle—predicted by thes
Externí odkaz:
https://doaj.org/article/925a6ed628614ffc902d1d6828666821
Autor:
Fabrizio Napolitano, Andrea Addazi, Angelo Bassi, Massimiliano Bazzi, Mario Bragadireanu, Michael Cargnelli, Alberto Clozza, Luca De Paolis, Raffaele Del Grande, Maaneli Derakhshani, Sandro Donadi, Carlo Fiorini, Carlo Guaraldo, Mihail Iliescu, Matthias Laubenstein, Simone Manti, Antonino Marcianò, Johann Marton, Marco Miliucci, Edoardo Milotti, Kristian Piscicchia, Alessio Porcelli, Alessandro Scordo, Francesco Sgaramella, Diana Laura Sirghi, Florin Sirghi, Oton Vazquez Doce, Johann Zmeskal, Catalina Curceanu
Publikováno v:
Symmetry, Vol 15, Iss 2, p 480 (2023)
Modern physics lays its foundations on the pillars of Quantum Mechanics (QM), which has been proven successful to describe the microscopic world of atoms and particles, leading to the construction of the Standard Model. Despite the big success, the o
Externí odkaz:
https://doaj.org/article/3875b5c3cff8411b979d26a354ea2d46
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 10, Pp 1-20 (2020)
Abstract The modified supergravity approach is applied to describe a formation of Primordial Black Holes (PBHs) after Starobinsky inflation. Our approach naturally leads to the two-(scalar)-field attractor-type double inflation, whose first stage is
Externí odkaz:
https://doaj.org/article/343e7ef67352448da2d1443a1827560c