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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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DTSTART;TZID=Europe/Amsterdam:20181207T120000
DTEND;TZID=Europe/Amsterdam:20181207T170000
DTSTAMP:20260616T003825
CREATED:20181019T124945Z
LAST-MODIFIED:20181205T090531Z
UID:385-1544184000-1544202000@cosmology.nl
SUMMARY:Amsterdam Fall 2018
DESCRIPTION:Amsterdam\, December 7th 2018 \nThe last THC meeting of the solar year takes place in Amsterdam. This meeting includes the opportunity to attend Daniel Baumann’s inaugural lecture for his appointment as full professor at University of Amsterdam. Detailed schedule and locations below. \nProgram \n12:00 – 12:30: Arrival with lunch  Location: Roeterseiland complex\, lecture room REC E0.22 \n12:30 – 13:30: Talk by Rafael Porto (DESY & ICTP Sao Paulo) \nTitle: Gravitational Collider Physics: From the LHC to LISA \nAbstract: \nIt is indisputable that gravitational wave (GW) science will play a transformative role in astrophysics. It is\, however\, less clear what impact GW measurements will have to shed light on phenomena beyond our current understanding of gravity and particle physics. In principle\, the non-perturbative regime in the dynamics of binary systems may carry the imprint of ‘new physics’. However\, the need for numerical modeling\, together with the small number of cycles involved\, may hinder our ability to pinpoint different scenarios if restricted only to the merger phase. In contrast\, an accurate analytic reconstruction of the signal during the inspiral offers a unique opportunity to study physics beyond the Standard Model through GW precision data (GWPD). Yet\, the associated computational challenges are enormous. While current GW templates for compact binary sources may be sufficient for detection and crude parameter estimation\, they are still too coarse for precision physics. We then find ourselves in a situation similar to particle physics in the pre-LHC era: for key processes within empirical reach theoretical uncertainties may dominate. To move forward\, and profit the most from GW observations\, more accurate waveforms will be needed. The “effective field theory” approach to the binary inspiral problem in general relativity has been instrumental for the construction of the state-of-the-art GW template bank. In this talk I will review how these novel techniques will provide the building blocks that will enable foundational investigations in physics through GWPD: from probes of dynamical spacetime and strongly interacting matter\, to the potential to discover exotic compact objects and ultra-light particles in nature. To conclude I will discuss the theoretical challenges ahead\, in modeling the binary’s dynamics\, to maximize the discovery potential of GW observations in a new era of explorations of the cosmos. \n13:30 – 13:45: Coffee Break \n13:45 – 14:45: Talk by Liam McAllister (Cornell University) \nTitle: The Kreuzer-Skarke Axiverse \nAbstract: \nI will describe a large ensemble of compactifications of type IIB string theory on Calabi-Yau threefold hypersurfaces\, obtained by triangulating polytopes from the Kreuzer-Skarke list. We have developed methods to compute effective theories in the previously-inaccessible region with many Kahler moduli that plausibly contains almost all vacua in this class. We find that ultralight axions are ubiquitous when the $\alpha^{\prime}$ expansion is under control. I will explain how these results can be used to advance our understanding of the string landscape and to test ideas about inflation and weak gravity. \n15:00 – 16:00: move to lecture hall Location: Aula Oude Lutherse Kerk \nSuggested route here \n16:00 – 17:00: Inaugural lecture Daniel Baumann(UvA) \nInfo here \n17:00: Drinks
URL:https://cosmology.nl/event/amsterdam-fall-2018/
LOCATION:Roeterseiland Campus\, Roetersstraat 11 \, Amsterdam\, 1018 WB\, Netherlands
CATEGORIES:THC meeting
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