BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Gravitational waves from primordial fluctuations DTSTART:20220310T143000Z DTEND:20220310T160000Z DTSTAMP:20260701T052945Z UID:fc668eac-6e6c-4fd7-8bdc-1ae26b897461 SEQUENCE:2 CREATED:20220307T110027Z DESCRIPTION:Abstract:The evolution of primordial fluctuations in the early universe is accompanied by a production of gravitational waves. The so-ca lled induced gravitational waves are the cosmic messenger of primordial fl uctuations on the smallest scales\, which may have been generated during c osmic inflation. In this talk\, I will discuss how they may be used to exp lore the early universe'\;s initial conditions and expansion history. This includes gravitational waves induced by oscillatory features in the p rimordial spectrum\, early isocurvature fluctuations and a primordial blac k hole dominated universe. LAST-MODIFIED:20220307T110110Z LOCATION:Sala de Seminários do DF\, Pavilhão de Física\, 2º piso URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/gravitational-waves-from-p rimordial-fluctuations/ X-ALT-DESC;FMTTYPE=text/html:

Abstract:
The evolution of primordial fluctuations in the early universe is accomp anied by a production of gravitational waves. The so-called induced gravit ational waves are the cosmic messenger of primordial fluctuations on the s mallest scales\, which may have been generated during cosmic inflation. In this talk\, I will discuss how they may be used to explore the early univ erse'\;s initial conditions and expansion history. This includes gravi tational waves induced by oscillatory features in the primordial spectrum\ , early isocurvature fluctuations and a primordial black hole dominated un iverse.

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