BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Can semi-classical gravity describe the beginning of the universe?
DTSTART:20190311T140000
DTEND:20190311T153000
DTSTAMP:20260407T064509Z
UID:6de3d321b36178e0e7dd9d6124d864dd5da7e16f9e41c40c15f14bb2
CATEGORIES:Conferences - Seminars
DESCRIPTION:Jean-Luc Lehners (AEI Potsdam)\nCould the universe have arisen
  as a quantum fluctuation? In other words\, could spacetime have “tunnel
 ed” into existence out of nothing? That is the premise of the best known
  theories of initial conditions\, namely the no-boundary and tunneling pro
 posals. To understand these theories\, we must understand the path integra
 l approach to gravity\, which in the past has been hampered by a number of
  technical issues. I will describe recent progress in defining and calcula
 ting gravitational path integrals\, and will discuss the consequences for 
 a semi-classical description of the beginning of the universe.
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR