[hep-th] Seminar grupe za cestice i gravitaciju

[Branislav Cvetkovic]

Postovane kolege,

u petak 25. oktobra u 11 h na Institutu za fiziku, u sali 300,
Carlo Nicola Colacuno ce odrzati seminar pod
naslovom "The Stochastic Gravitational-Wave Background (SGWB):
Theory and  detection issues". Apstrakt vam prosledjujem u prilogu.

                                           Pozdrav Branislav

Abstract: The SGWB is the most elusive and most mysterious source of  
gravitational radiation. There is an astrophysical component, due to a  
superposition in frequency of a number of unresolved binary systems  
("foreground") and there is the real background, of cosmological  
origin, generated by processes which took place when the Universe was  
less than a picosecond old. Its detection could mark a real turning  
point in cosmology -far more profound that that given by the discovery  
of the Cosmic Microwave Background Radiation (CMBR), generated at  
photon decoupling, t= 400000 years- and quantum gravity, therefore the  
SGWB has been also called "the Rosetta Stone" of cosmology. Since it  is 
characterised only by its statistical properties, it is  
undistinguishable in principle from noise, making its detection a very  
hard task. I will talk about sources and also about detection and data- 
analysis strategies. I will also touch upon some quantum optics issues  
that have become hot topics in interferometric gravitational-wave  
detection and whose theoretical developments could give us some  
interesting hints about the tormented relationship between General  
Relativity and Quantum Mechanics.