caa a22 4500 445386827 CHVBK 20180317143034.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10714-011-1220-8 doi (NATIONALLICENCE)springer-10.1007/s10714-011-1220-8 Stimulated creation of quanta during inflation and the observable universe [Elektronische Daten] [Ivan Agullo, Leonard Parker] Inflation provides a natural mechanism to account for the origin of cosmic structures. The generation of primordial inhomogeneities during inflation can be understood via the spontaneous creation of quanta from the vacuum. We show that when the corresponding stimulated creation of quanta 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 spectrum of primordial inhomogeneities. The non-gaussianities (particularly in the so-called squeezed configuration) in the cosmic microwave background and galaxy distribution can then tell us about the state of the universe that existed at the time when quantum field theory in curved spacetime first emerged as a plausible effective theory. Springer Science+Business Media, LLC, 2011 Cosmology nationallicence Inflation nationallicence Non-gaussianities nationallicence Quantum field theory in curved space-times nationallicence Agullo Ivan Physics Department, Institute for Gravitation and the Cosmos, Penn State, 16802-6300, University Park, PA, USA aut Parker Leonard Physics Department, University of Wisconsin-Milwaukee, P.O. Box 413, 53201, Milwaukee, WI, USA aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/10(2011-10-01), 2541-2545 0001-7701 43:10<2541 2011 43 10714 https://doi.org/10.1007/s10714-011-1220-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-011-1220-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Agullo Ivan Physics Department, Institute for Gravitation and the Cosmos, Penn State, 16802-6300, University Park, PA, USA aut NATIONALLICENCE 700 1- Parker Leonard Physics Department, University of Wisconsin-Milwaukee, P.O. Box 413, 53201, Milwaukee, WI, USA aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/10(2011-10-01), 2541-2545 0001-7701 43:10<2541 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer