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Weekly Seminars for November 2019 Print E-mail
Thursday November 7th, 2019 - h 11:00
  ICRANet Pescara (Meeting room, 1st Floor)
 
ICRANet Seminar
 
 
 
Speaker: Dr. Orchidea Maria Lecian

Institution: La Sapienza University of Rome

Title: Quantum-systems investigations vs optical-systems ones​
 
Abstract:  
The features of quantum systems, quantum-optical-systems and optical systems can be outlined according to the possibility for the study of the properties of matter fields and of the gravitational field. Quantum properties of particles and of the background gravitational field at quantum scales, at the semi-classical regime and at the classical level are analyzed by quantum systems and optical-systems devices, for which the experimental features of the research are compared. Investigation in cosmology and in early cosmology can be envisaged. The features of quantum operators to be evaluated by these techniques are pointed out. The properties of relativistic objects are this way examined. The features of the Einstein field equations and of their initial conditions are defined. The degrees of freedom available for the Einstein field equations and their initial conditions are characterized.
 
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ICRANet Secretariat
ICRANet
Piazza della Repubblica 10
65122 Pescara (PE)
Italy
tel.: +39 085 23054200
fax: +39 085 4219252
email: secretariat@icranet.org
 




Friday November 15th, 2019 - h 11:00
  ICRANet Pescara (Meeting room, 1st Floor)
 
ICRANet Seminar
 
 
 
Speaker: Seddigheh Tizchang

Institution: School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), Teheran, Iran

Title: Probing the effect of background fields on the polarization of photons from CMB to lasers​
 
Abstract:  
It is known that the polarization of photons can partly rotate and/or convert to circular polarization via forward Compton scattering in the presence of a background field. Based on this fact, we show that Compton scattering in presence of non-trivial background and scalar perturbation of metric, in addition to generate circularly polarized microwaves, can lead to a B-mode polarization for the CMB. Besides, we proposed an earth-based experiment in which the polarization of the laser photon convert to circular one via forward scattering by high energy charged lepton beam in presence of non-trivial background fields such as Non-commutative space-time and Lorentz violation.
 
*************************************************
ICRANet Secretariat
ICRANet
Piazza della Repubblica 10
65122 Pescara (PE)
Italy
tel.: +39 085 23054200
fax: +39 085 4219252
email: secretariat@icranet.org
 

 
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