QGSKY

Quantum Universe

 

 

Abstract


General Relativity (GR) predicts numerous observational tests at large distances and late time scales (infrared scales), matching several observations ranging from Solar System tests to large scale structure of the Universe. However, at short distances and small time scales (ultraviolet regimes) GR breaks down by virtue of the appearance of unavoidable singularities (black hole type and cosmological singularities), a possible signal that an unknown (quantum-scale) description of gravity  is required.. In addition, the current cosmological picture of the Universe turns out to be substantially new with respect to the Standard Cosmological Model. In fact, observations provide a composition of the Universe constituents according to which the present Universe is made by a large amount of unknown form of matter and energy. Experimental searches for a direct evidence of dark candidates have not yielded so far any conclusive result. It is therefore reasonable to pursue schemes beyond Einstein’s gravity in order to account for observations and phenomenology without introducing “ad hoc” ingredients. This means to extend the geometric part of the gravitational field equations in view of addressing phenomenology under a geometric standard. However, at suitable scales like Solar System, GR must be recovered to make the picture consistent.
The QGSKY project focuses on theoretical and phenomenological aspects of QFT, GR, and theories beyond GR taking into account observations resulting from the so-called precision cosmology. Our nodes have a joint collaboration in various projects, and although our main interests are in the theoretical and phenomenological aspects, the competences of our IS range from phenomenology of particle physics to cosmology and relativistic astrophysics.The common threads of the IS:
Extended theories of gravity
Non-local QFT and non-local theories of gravity
Dark Matter and Dark energy
QFT in curved space-time
Exact  black hole solutions
Theoretical cosmology 
 
 
 

HIGHLIGHTS OF QUANTUM UNIVERSE

 

We have initiated a series of annual workshops and conferences, devoted to the presentation of  new results and open problems in theoretical physics. We have also contributed to the organization  of the Conferences:
 
SIGRAV CONFERENCES, years 2018, 2016, 2014, 2012, 2010, 2008, 2006, 2004.
 
PROBLEMI ATTUALI DI FISICA TEORICA (Vietri sul Mare (SA), 2004-2019).
DARK SIDE OF THE UNIVERSE (SISSA, October 2013).
THE TIME MACHINE FACTORY (Turin, October 2012).
15th INTERNATIONAL CONFERENCE ON GRAVITATIONAL MICROLENSING (Salerno, January 2011).
QUANTUM GRAVITY AND SPECTRAL GEOMETRY (Naples, July 2001).
 
and three Schools:
 
SIGRAV School, years 2019.2020 (Vietri sul Mare (SA)) 
KARPACZ WINTER SCHOOL 2013, KARPACZ WINTER SCHOOL 2006 (Ladek, February 2013 & February 2006).
COARSE-GRAINED COSMOLOGY (GGI Florence, January 2009).
NEW PATHS TOWARDS QUANTUM GRAVITY (Holbaek, May 2008). 
 
We have published our research activities presented during our annual meetings::
Einstein, Planck and Vera Rubin: relevant encounters between the Cosmological and the Quantum Worlds
P. Salucci, G. Esposito, G. Lambiase, , et al...
Front. Phys., 16 February 2021 ( https://doi.org/10.3389/fphy.2020.603190 )
e-Print: 2011.09278 [gr-qc]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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