Zobrazeno 1 - 10
of 432
pro vyhledávání: '"LAMBIASE, GAETANO"'
General Relativity suffers for two main problems which have not yet been overcome: it predicts spacetime singularities and cannot be formulated as a perturbative renormalizable theory. In particular, many attempts have been made for avoiding singular
Externí odkaz:
http://arxiv.org/abs/2412.13629
Dark matter (DM) within the solar system induces deviations in the geodetic drift of gyroscope spin due to its gravitational interaction. Assuming a constant DM density as a minimal scenario, we constrain DM overdensity within the Gravity Probe B (GP
Externí odkaz:
http://arxiv.org/abs/2412.09575
Neutron Stars (NSs), among the densest objects in the Universe, are exceptional laboratories for investigating Dark Matter (DM) properties. Recent theoretical and observational developments have heightened interest in exploring the impact of DM on NS
Externí odkaz:
http://arxiv.org/abs/2412.09381
The high speeds seen in rapidly rotating pulsars after supernova explosions present a longstanding puzzle in astrophysics. Numerous theories have been suggested over the years to explain this sudden "kick" imparted to the neutron star, yet each comes
Externí odkaz:
http://arxiv.org/abs/2412.08446
This paper links the advanced formulation of the Generalized Uncertainty Principle, termed the Asymptotic Generalized Extended Uncertainty Principle (AGEUP), to the corpuscular framework to derive the AGEUP-inspired black hole metric. The former inco
Externí odkaz:
http://arxiv.org/abs/2412.00303
Two notable anomalies in radio observations -- the excess radiation in the Rayleigh-Jeans tail of the cosmic microwave background, revealed by ARCADE2, and the twice-deeper absorption trough of the global 21cm line, identified by EDGES -- remain unre
Externí odkaz:
http://arxiv.org/abs/2411.09042
In this paper we study the Oppenheimer-Snyder (OS) gravitational collapse in the general framework of scale-dependent gravity. We explore the collapse in spherically symmetric solutions suggested both by asymptotically safe gravity (positive $\om$-pa
Externí odkaz:
http://arxiv.org/abs/2410.15904
Gravitational waves (GWs) can undoubtedly serve as a messenger from the early Universe acting as well as a novel probe of the underlying gravity theory. In this work, motivated by one-loop vacuum-polarization effects on curved spacetime, we investiga
Externí odkaz:
http://arxiv.org/abs/2408.17259
Publikováno v:
EPL 148 (2024) 49001
As a way to explore the potential consequences of Lorentz symmetry breaking on gravitational and cosmological phenomena, the Bumblebee model was proposed as a type of modified gravity theory that incorporates spontaneous Lorentz symmetry breaking, ac
Externí odkaz:
http://arxiv.org/abs/2408.09620
Autor:
Alok, Ashutosh Kumar, Chall, Trambak Jyoti, Chundawat, Neetu Raj Singh, Gangal, Shireen, Lambiase, Gaetano
Coherence, which represents the superposition of orthogonal states, is a fundamental concept in quantum mechanics and can also be precisely defined within quantum resource theory. Thus exploring quantum coherence in neutrino oscillations can not only
Externí odkaz:
http://arxiv.org/abs/2407.16742