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Calendar of Physics Talks Vienna
| General Relativity from a Quantum Field Theory Perspective |
| Speaker: | Prof. John F. Donoghue (Univ. of Massachusetts Amherst) |
| Abstract: | 2. Vorlesung im Rahmen der Schrödinger-Gastprofessur 2015 |
| Date: | Tue, 20.10.2015 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | P.T. Chrusciel, A. Hoang, H. Neufeld |
| Large-field inflation in string theory? — Evading no-go-theorems from the Weak Gravity Conjecture |
| Speaker: | Lukas Witkowski (University of Heidelberg) |
| Abstract: | Promising approaches to large-field inflation from string theory are difficult to construct, even at a superficial level. The simplest constructions fail and one requires technically involved models which face many challenges from data as well as from the model building side. Are these difficulties a hint that string theory does not admit large-field inflation? Indeed, recently it was argued that the Weak Gravity Conjecture — a folk theorem about consistent theories of Quantum Gravity — is in conflict with a large class of inflation models from string theory. In this talk I want to review this conjecture and explain its significance for large-field inflation from string theory. Interestingly, the conjecture leaves a loophole for large-field inflation and I will explore to what extent string theory can exploit this loophole. |
| Date: | Thu, 22.10.2015 |
| Time: | 10:30 |
| Duration: | 60 min |
| Location: | SEM, TU Wien, Freihaus, yellow tower, 3rd floor (Wiedner Hauptstr. 8-10, A-1040 Vienna) |
| Contact: | Timm Wrase |
| Introduction to uniqueness problems in general relativity and the reconstruction of linear waves from radiative properties |
| Speaker: | Volker Schlue (Laboratoire Jacques-Louis Lions Université Paris 6 – Pierre et Marie Curie Sorbonne Universités) |
| Abstract: | im Rahmen des Seminars in Geometric Analysis and Physics
(GAP Seminar) |
| Date: | Thu, 22.10.2015 |
| Time: | 11:00 |
| Duration: | 60 min |
| Location: | Arbeitsgruppe Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock, 1090 Wien |
| Contact: | M. Bauer (Fak. Math, U.V.), V. Branding (Fak. Math, T.U.), D. Fajman (Fak. Phys, U.V.), J. Joudioux (Fak. Phys, U.V.) |
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