NOUCI

Non-gaussianities in the observable universe and the origin of cosmic inhomogeneities

 Coordinatore THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE 

 Organization address address: The Old Schools, Trinity Lane
city: CAMBRIDGE
postcode: CB2 1TN

contact info
Titolo: Ms.
Nome: Renata
Cognome: Schaeffer
Email: send email
Telefono: +44 1223 333543
Fax: +44 1223 332988

 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 209˙033 €
 EC contributo 209˙033 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2011-IEF
 Funding Scheme MC-IEF
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-08-01   -   2016-04-11

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE

 Organization address address: The Old Schools, Trinity Lane
city: CAMBRIDGE
postcode: CB2 1TN

contact info
Titolo: Ms.
Nome: Renata
Cognome: Schaeffer
Email: send email
Telefono: +44 1223 333543
Fax: +44 1223 332988

UK (CAMBRIDGE) coordinator 209˙033.40

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

initial    galaxy    universe    inflation    cosmic    creation    predictions    inhomogeneities    proposals    stimulated    observations    vacuum    inflationary    onset    effect    primordial   

 Obiettivo del progetto (Objective)

'Inflation provides a natural mechanism to account for the origin of cosmic structures. The generation of primordial inhomogeneities during inflation is usually computed as the result of the (gravitationally-induced) spontaneous creation of quanta from an initial vacuum state. However, as recently pointed out by Agullo and Parker, when the corresponding stimulated creation is considered, the characteristics of the state of the universe at the onset of inflation are not diluted by the inflationary expansion and can be imprinted in the distribution of primordial inhomogeneities. The objective of this research project is to provide a detailed analysis of the consequences of the stimulated creation effect during inflation.

We will analyze the consequences of having a totally arbitrary initial state describing metric perturbations at the onset of inflation for the predictions of inflation regarding the Cosmic Microwave Background (CBM) anisotropies and galaxy distribution. We will pay special attention to the effects concerning non-gaussianites. This analysis will provide a characterization of the pattern expected from a generic non-vacuum state and, on the other hand, will show what information about that state can be extracted from observations.

On the other hand, the stimulated creation effect opens a window towards the observation of pre-inflationary effects in the CMB and galaxy distribution. The objective of this part of the research project is to work out in detail the predictions arising from quantum gravity proposals of the early universe, and the potential that forthcoming observations have to constrain those proposals.'

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