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Aktuelle Veranstaltungen

 

Kolloquium

Thema:

Problems in the Foundations of Physics

Datum:

13.12.21

Uhrzeit:

16:15

Ort:

cyberspace

Vortragender:

Dr. Sabine Hossenfelder

FIAS Frankfurt

Inhalt:

In the foundations of physics, we have long-standing open problems such as the nature of dark matter and dark energy, the hierarchy problem, or the missing quantization of gravity. Yet physicists have not made progress on solving those problems for 50 years. In this talk, I discuss how physicists ended up in a vicious cycle of theorizing and null results, and what we can do to overcome the present phase of stagnation.

Ansprechpartner:

W. Pfeiffer

Kolloquium Mathematische Physik

Thema:

20220506-Volker Bach-TBC

Datum:

06.05.22

Uhrzeit:

16:15

Ort:

ZOOM/Konferenzschaltung

Vortragender:

Volker Bach

Technische Universität Braunschweig

Inhalt:

TBC

Ansprechpartner:

M. Baake

Seminar Hochenergiephysik

Thema:

Large Scale Structure and Integrated Sachs-Wolfe Effect Measurements with the Rapid ASKAP Continuum Survey

Datum:

13.01.22

Uhrzeit:

15:36

Ort:

D6-135

Vortragender:

Benedict Bahr-Kalus

Korea Astronomy and Space Science Institute, KASI

Inhalt:

Ansprechpartner:

D. Schwarz

Seminar Kondensierte Materie

Thema:

tba

Datum:

14.01.22

Uhrzeit:

14:15

Ort:

D5-153

Vortragender:

Roman Rausch

TU Braunschweig

Inhalt:

Ansprechpartner:

Jürgen Schnack

Seminar Mathematische Physik

Thema:

On Non-Hermitian Beta-Ensembles

Datum:

14.10.21

Uhrzeit:

16:00

Ort:

D5-153

Vortragender:

Patricia Päßler

Universität Bielefeld

Inhalt:

Log-gases with inverse temperature beta are systems with many applications in physics, for example in the theory of superconductors or the fractional quantum Hall effect. For some specific values of beta a correspondence to random matrix theory (RMT) is well established. The advantage of this connection is the usage of the RMT methods in the study of those systems. The goal of this talk is the discussion of Log-gases in two dimensions, i.e. in the non-Hermitian case, for more general values of the inverse temperature. Therefore, we study in the first part a model of normal 2 × 2 matrices with beta in [0,2] and discuss whether we find a surmise for the nearest-neighbour spacing distribution of large matrices. In the second part of the talk we introduce the study of symmetry classes in non-Hermitian RMT. We conjecture that the classes of complex symmetric and complex quaternion matrices can be effectively described by Log-gases in two dimensions with non-integer inverse temperatures.

Ansprechpartner:

Gernot Akemann

Seminar Bielefeld-Melbourne Zufallsmatrizen

Thema:

20220119-JonasJalowy-TBC

Datum:

19.01.22

Uhrzeit:

09:00

Ort:

ZOOM / Konferenzschaltung

Vortragender:

Jonas Jalowy

Westfälische Wilhelms-Universität Münster

Inhalt:

Ansprechpartner:

Gernot Akemann



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  • | Letzte Änderung: 30.06.2020
  •  Olaf Kaczmarek
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