18 papers
Phantom crossing from the Standard Model and General Relativity
Jinglong Liu, Tucker Manton, Yifu Cai +1
Suggestions of a late-time phantom crossing from DESI baryon acoustic oscillation measurements, combined with cosmic microwave background and Type-Ia supernova observations, have r…
Noise-induced stabilization of Schwarzschild--AdS black holes under stochastic Ricci flow
Jihui Wang, Matteo Lulli, Antonino Marciano
We investigate the stochastic Ricci flow of spherically symmetric perturbations of the Schwarzschild--Anti de Sitter black-hole metric. Elaborating on the Ricci-flow analysis of He…
Emergent Gravity from Topological Quantum Field Theory: Stochastic Gradient Flow Perspective away from the Quantum Gravity Problem
Andrea Addazi, Salvatore Capozziello, Jinglong Liu +3
We propose a scenario according to which the ultraviolet completion of General Relativity is realized through a stochastic gradient flow towards a topological BF theory. Specifical…
Machine Learning for Multi-messenger Probes of New Physics and Cosmology: A Review and Perspective
Andrea Addazi, Konstantin Belotsky, Vitaly Beylin +18
The multi-messenger exploration of dark matter and physics beyond the Standard Model has emerged as a central direction in modern astro-particle physics, particularly following the…
Fermion Condensate Inflation, Dynamical Waterfall Mechanism and Primordial Black Holes
Stephon Alexander, Pisin Chen, Jinglong Liu +3
Fermion condensate inflation, where inflation emerges from four-fermion interactions induced by spacetime torsion, removes the need for additional scalar fields beyond the Standard…
When identical particles cease to be indistinguishable: violation of statistics in quantum spacetime
Nicola Bortolotti, Catalina Curceanu, Antonino Marciano +1
Quantum gravity may modify the fundamental symmetries that govern identical particles. In particular, noncommutative spacetime frameworks predict deformations of Bose and Fermi sta…