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X-WR-CALNAME:Observing the Big Bang
X-ORIGINAL-URL:https://cosmology.nl
X-WR-CALDESC:Events for Observing the Big Bang
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TZID:Europe/Amsterdam
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TZOFFSETFROM:+0100
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DTSTART:20170326T010000
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TZNAME:CET
DTSTART:20171029T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Amsterdam:20171110T140000
DTEND;TZID=Europe/Amsterdam:20171110T170000
DTSTAMP:20260513T132342
CREATED:20171027T104101Z
LAST-MODIFIED:20171106T145358Z
UID:354-1510322400-1510333200@cosmology.nl
SUMMARY:Amsterdam Fall 2017
DESCRIPTION:Amsterdam\, November 10th\, 2017 \nThe meeting will take place at Nikhef in room H331. \n14:00-15:00 Talk by William Cottrell (UvA)\nTitle: Weak Gravity Constraints in Inflation \nAbstract:  \n In this talk I will summarize constraints that the axionic form of the Weak Gravity Conjecture places on inflation models and attempts to circumvent these constraints.  I will also discuss applications of the Weak Gravity Conjecture to monodromy models.\n\n� \n15:00 – 15:30 Coffee \n15:30-16:30 Talk by Vincent Vennin (APC\, Paris & Portsmouth U.\, ICG)\nTitle: Stochastic Inflation and Primordial Black Holes \nAbstract: \nIn the inflationary paradigm\, the transition from quantum fluctuations to classical but stochastic density perturbations plays an important role. In particular\, it implies that the super-Hubble degrees of freedom can be described with a classical stochastic theory\, the “stochastic inflation” formalism.In this framework\, the short-wavelength quantum fluctuations act as a classical noise on the dynamics of the super-Hubble scales. \nI will explain which signatures are left by this quantum backreaction on the correlation functions of primordial cosmological perturbations. I will discuss the conditions under which these can be large even at sub-Planckian energy\, and I will explain which prospects it opens for probing quantum gravity effects on inflationary dynamics. As an application\, I will show how the formation of primordial black holes from inflation is dominated by these stochastic effects.\n \n� \n16:30: Borrel
URL:https://cosmology.nl/event/amsterdam-fall-2017/
LOCATION:NIKHEF\, Science Park 105\, Amsterdam\, 1098 XG
CATEGORIES:THC meeting
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