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Name

Vittoria Demozzi

Position

Former member
Member from October 2011 to September 2012
Current position: Department of Electrical Engineering and IT, Patent Attorneys' office Hoffmann-EitlePatent, Munich

Projects

Research directions:

Cosmology and General Relativity

Non-active projects

Cosmic inflation

Christophe Ringeval

The first measurements of acoustic peaks in the CMB anisotropies strongly suggest that the birth of cosmological fluctuations may have taken place during an early inflationary era of the universe.
In this domain, our activities deal with the construction of explicit models of inflation as well as the extraction of their observable consequences. Our fields of expertise comprise some actively debated subjects as the existence of features (e.g. trans-Planckian effects), inflation with non-minimally coupled scalar fields, DBI- and brane inflation as in the context of String Theory.
For all these theories, we are maintaining various numerical tools such as the ASPIC and FieldInf librairies allowing to compute reheating-consistent predictions for comparison with cosmological data.

External collaborators: Jérôme Martin (IAP, Paris, France), Vincent Vennin (Portsmouth, U.K.), Sébastien Clesse (RWTH, Aachen, Germany).

Primordial magnetic fields

Christophe Ringeval

Observations show that magnetic fields are present everywhere in the universe. Planets, galaxies, clusters carry magnetic fields of varying strength and coherence size. There are evidences of their presence also in the intergalactic medium and this strongly suggests that their origin might be primordial. A promising candidate for the generation of primordial magnetic fields is inflation. Our work concerns the construction of efficient inflationary mechanisms which could produce the large-scale magnetic fields observed today and it deals in particular with the possible effects that such mechanisms have on the physics of the universe after inflation.

External collaborators: Chiara Caprini (CEA Saclay, France), Teruaki Suyama (The University of Tokyo, Japan).

Publications in IRMP

All my publications on Inspire

Number of publications as IRMP member: 1

2012

CP3-12-12: Reheating constraints in inflationary magnetogenesis

Vittoria Demozzi and Christophe Ringeval

[Abstract] [PDF] [Journal] [Dial]
Published in JCAP 05 (2012) 009
Refereed paper. February 15.