Theoretical Cosmology meetings

To actively encourage the field of theoretical cosmology and to set an informal stage for the exchange of ideas, the Dutch theoretical cosmology community organizes Friday afternoon meetings approximately 6 times a year — usually on the first Friday of the month. The meetings typically start in the afternoon with a main speaker, followed by a short break to continue with another seminar or journal club discussion on some topic of current interest. We end the afternoon with drinks. The supporting institutes in Leiden, Amsterdam, Groningen, Utrecht where recently joined by the strings and cosmology group in Leuven and take turns in hosting the event.

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June 2017

Utrecht Summer 2017: Joint Cosmology & Holography

02/06/2017 @ 14:00 - 18:00
Institute for Theoretical Physics Utrecht,
Princetonplein 5
Utrecht, 3584 CE Netherlands
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Utrecht on Friday, June 2, 2017 Location: Atlas Lecture Hall, Koningsberger Building, Utrecht Science Park Schedule 13:30 – 14:00 Tea & Coffee 14:00 – 15:00 Talk by Brando Bellazzini (IPhT CEA Saclay) Title: Softness, amplitudes’ positivity, and EFT for spinning particles. Abstract: Not every EFT admits a UV completion which is consistent with S-matrix theory. I will review some of the…

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July 2017

Lorentz Center Workshop: Theoretical Approaches to Cosmic Acceleration

03/07/2017 - 07/07/2017

Lorentz Center Workshop: Theoretical Approaches to Cosmic Acceleration Connecting String, Supergravity and Quantum Field Theory Aspects of (Near-) De Sitter Space from 3 Jul 2017 through 7 Jul 2017 Venue: Leiden, Lorentz Center@Oort Link to the program and registration: https://www.lorentzcenter.nl/lc/web/2017/913/info.php3?wsid=913&venue=Oort Scientific organizers: Ana Achúcarro (Leiden, The Netherlands) Renata Kallosh (Stanford, CA, USA) Andrei Linde (Stanford, CA, USA) Diederik Roest (Groningen, The Netherlands)…

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October 2017

Leiden Fall 2017

06/10/2017 @ 14:00 - 17:00
Institute Lorentz Leiden,
Niels Bohrweg 2
Leiden, 2333 CA Netherlands
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Leiden, October 6h, 2017 The meeting will take place in the Casimir room, Oort 276, Institute Lorenz coffee room. 14:00-15:00 Talk by Kepa Sousa (IFT Madrid) Title: Supertranslations at black hole horizons and gauge redundancies Abstract:  Classical “no-hair theorems” state that stationary black holes in Einstein-Maxwell theory are characterised by their mass, angular momentum and electric charge. Hawking et al.…

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November 2017

Amsterdam Fall 2017

10/11/2017 @ 14:00 - 17:00
NIKHEF,
Science Park 105
Amsterdam, 1098 XG
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Amsterdam, November 10th, 2017 The meeting will take place at Nikhef in room H331. 14:00-15:00 Talk by William Cottrell (UvA) Title: Weak Gravity Constraints in Inflation Abstract: 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…

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December 2017

Utrecht Fall 2017

01/12/2017 @ 14:00 - 17:00
Institute for Theoretical Physics Utrecht,
Princetonplein 5
Utrecht, 3584 CE Netherlands
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Utrecht, December 1st, 2017 The meeting will take place at Utrecht University, Buys Ballot building (BBG) in room BBG 065. 14:00-15:00 Talk by Yvette Welling (Leiden University) Title: Scaling symmetry & hyperbolic field space in inflation Abstract: We explore different corners of the parameter space of inflation with multiple fields. In all cases we find quite counterintuitive phenomenology. First, we…

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January 2018

Groningen Winter 2017

January 12 @ 12:00 - 17:00
Academy Building,
Broerstraat 5
Groningen, 9712CP
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Groningen, January 12th, 2018 The meeting will take place at the Academy building downtown, Broerstraat 5, room A900, which you can find by entering a small building to the left (i.e. west) of the academy building itself, adjacent to the Kilroy store – or ask at the reception of the academy building. 11:45-12:00 Coffee 12:00-13:00 Talk by Andrew Tolley (Imperial…

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March 2018

Utrecht Winter 2018

March 9 @ 08:00 - 17:00
Institute for Theoretical Physics Utrecht,
Princetonplein 5
Utrecht, 3584 CE Netherlands
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Utrecht, March 9th, 2018 The meeting will take place at Utrecht University, Buys Ballot building (BBG) 14:00-15:00 Talk by Cristiano Germani (Barcelona University), Title:Primordial Black Holes from single field inflation Abstract: In this talk I will discuss whether primordial black holes can be formed, and under which conditions, by large (small-scales) curvature perturbations generated during single field inflation. 15:00 –…

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April 2018

Leiden Spring 2018

April 6 @ 14:00 - 17:00
Institute Lorentz Leiden,
Niels Bohrweg 2
Leiden, 2333 CA Netherlands
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Leiden, April 6th, 2018 The meeting will take place in Leiden, room 408 in the Snellius Building (Niels Bohrweg 1). 14:00 – 15:00 Talk by José Juán Blanco Pillado (UPV-EHU Bilbao), Title: Gravitational Waves from Cosmic Strings Abstract: I will give a brief introduction to the theory of cosmic strings in the early universe and discuss recent progress in our…

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May 2018

Cosmological Frontiers in Fundamental Physics

May 14 @ 08:00 - May 16 @ 17:00

Brussels, May 14-16th, 2018 The workshop is part of a series organized jointly by the International Solvay Institutes, Laboratoire APC (University Paris VII, France) and the Perimeter Institute (Waterloo, Canada). The series aims to discuss, in an informal setting, recent developments at the interface of cosmology and fundamental physics. The previous edition was held by the Perimeter Institute in June…

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June 2018

Groningen Spring 2018

June 8 @ 13:00 - 17:00
Lecture room 112,
Oude Boteringstraat 34
Groningen, Groningen 9712 GK Netherlands
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Groningen, June 8th, 2018 Location: lecture room 112 in the Oude Boteringstraat 34 (Faculty of Arts), Groningen 13:00 – 14:00:  Talk by Djuna Croon (Dartmouth College), Title: Model discrimination in Gravitational Waves from Phase Transitions Abstract: Besides the EWPT, various dark phase transitions could give an observable broken power-law spectrum at LISA. In this talk I will consider the opportunities for model…

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