Past Events

Theoretical Physics Seminar: Guilherme Sadovski

2020年10月9日 (金) 14:00
Lab 4, F01

Theoretical Physics Seminar.
Speaker: Guilherme Sadovski (Gravity, Quantum Geometry and Field Theory).
Title: "Why is the world four-dimensional?"

QG Group meeting: S-matrix vs. lightcone formalism in de Sitter space

2020年9月28日 (月) 14:00
Lab 4, E01

This is the weekly QG group meeting.
Speaker: Yasha Neiman.
Title: "S-matrix vs. lightcone formalism in de Sitter space"

Theoretical Physics Seminar: Yasha Neiman

2020年9月25日 (金) 14:00
Lab 4, E01

Theoretical Physics Seminar.
Speaker: Yasha Neiman (Quantum Gravity).
Title: "Scattering in the causal diamond"

Zoom seminar by Peter Woit: twistors and the Standard Model

2020年9月24日 (木) 10:00
Lab 4, E01

Zoom seminar hosted by QG group.
Speaker: Peter Woit (Columbia University).
Title: Twistors and the Standard Model.

The three-body problem from Newton to gravitational waves

2020年9月14日 (月) 13:30 15:30
Lab4 E01

Title: The three-body problem from Newton to gravitational waves

Speaker: Dr. Alessandro Alberto Trani

Abstract:   

The gravitational few-body problem is one of the oldest conundrums in astronomy and classical mechanics. Yet, its simplest instance, the three-body problem, has no general analytical solution and only a partial statistical solution has been achieved so far. With the birth of gravitational wave astronomy and the rise in exoplanet discoveries, the three-body problem is again becoming central to explaining astrophysical phenomena.

 
I will first describe our recent efforts in deriving a complete statistical solution to the non-hierarchical, chaotic three-body problem. I will then review the status of gravitational wave detections and our current understanding of their origin, and show how three-body interactions play a key role in several formation pathways of gravitational wave events. 

Theoretical Physics Seminar: Karol Gietka

2020年8月7日 (金) 14:00
Lab 4, E01

Theoretical Physics Seminar.
Speaker: Karol Gietka (Quantum Systems).
Title: "Quantum Simulators in Other Frames of Reference"

QG Group meeting: D-branes of higher-spin gravity?

2020年7月20日 (月) 14:00
Lab 4, E01

QG group meeting.
Speaker: Yasha Neiman.
Title: "D-branes of higher-spin gravity?"

Theoretical Physics Seminar: Matthias Gohlke

2020年7月10日 (金) 13:30
Lab 4, E01

Theoretical Physics Seminar.
Speaker: Matthias Gohlke (Quantum what's the Matter).
Title: "Kitaev's honeycomb model: an exactly solvable quantum spin liquid"

Group Meeting Talk: Current Algebras and Celestial CFT Correlators

2020年7月6日 (月) 14:00 16:00
Lab4 E01

Title: Current Algebras and Celestial CFT Correlators

Speaker: Sudip Ghosh

Abstract: I will discuss the construction of a SL(2,C) current algebra using the subleading soft graviton theorem and the constraints imposed by this current algebra via null state relations on the spectrum of the putative CFT dual of Einstein gravity in (3+1)-d asymptotically flat spacetimes.

Theoretical Physics Seminar: 'Hannes Schoenke

2020年6月26日 (金) 14:00
Lab 4, E01

Theoretical Physics Seminar.
Speaker: 'Hannes Schoenke (Mathematics, Mechanics, Materials, and other aspects of M Theory).
Title: "A glimpse into the beauty of algebraic geometry (examples included!)"

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