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Aktuelle Veranstaltungen

 

Kolloquium

Thema:

tba

Datum:

01.02.21

Uhrzeit:

16:15

Ort:

cyberspace

Vortragender:

JProf. Francesca Cuteri

Goethe-Universität Frankfurt

Inhalt:

Ansprechpartner:

F. Karsch/TR211

Kolloquium Mathematische Physik

Thema:

15/01/2021 - TBC

Datum:

15.01.21

Uhrzeit:

16:15

Ort:

ZOOM/Konferenzschaltung

Vortragender:

Simone Warzel

Technical University of Munich

Inhalt:

TBC

Ansprechpartner:

G. Akemann

Seminar Hochenergiephysik

Thema:

Quantum computing quantum field theory problems

Datum:

15.12.20

Uhrzeit:

14:15

Ort:

cyberspace

Vortragender:

Niklas Mueller

BNL

Inhalt:

I will present an overview over the exciting field of quantum computation from a high energy / nuclear theory perspective (No hardware, sorry!). After a brief but pedagogical introduction into the basic concepts, and into some of the interesting physics problems, I will try to explain what “quantum computing” a (lattice) field theory problem actually requires one to do: from digitizing the Hilbert space of ones favorite theory to coming up with an algorithm including preparing states and extracting information by measurement. As an example, I will mostly focus on quantum computation of a dynamical problem (scattering) in scalar phi^4 theory, and will be contrasting the current state-of-the-art approach by Jordan, Lee and Preskill with one we are currently developing. I might talk about quantum computation/simulation of gauge theories, if time permits.

Ansprechpartner:

S. Schlichting

Seminar Kondensierte Materie

Thema:

Evaluation der Genauigkeit des Tschebyscheff-Algorithmus zur Bestimmung thermodynamischer Funktionen am Beispiel einer Heisenberg-Spin-Leiter

Datum:

11.09.20

Uhrzeit:

14:00

Ort:

ZOOM / Konferenzschaltung

Vortragender:

Henrik Schlüter

Universität Bielefeld

Inhalt:

Es wird eine Einführung in die numerische Berechnung thermodynamischer Funktionen mithilfe des Tschebyscheff-Algorithmus gegeben. Anschließend findet eine Bewertung der Ergebnisse am Beispiel einer Heisenberg-Spin-Leiter in Abhängigkeit der Tschebyscheff-Parameter statt.

Ansprechpartner:

Jürgen Schnack

Seminar Mathematische Physik

Thema:

Statistics of Extremes in Eigenvalue-counting Staircases

Datum:

04.06.20

Uhrzeit:

16:00

Ort:

ZOOM / Konferenzschaltung

Vortragender:

Yan Fyodorov

King's College London

Inhalt:

We consider the counting function (“spectral staircase”) for eigenvalues of a random unitary matrix, drawn from the corresponding beta-ensemble. Our goal is to characterize the statistics of maximum deviation of this staircase from its mean slope in a fixed interval, when size of the matrix N >>1. We will show that one-sided extremes can be addressed by exploiting a mapping onto the statistical mechanics of log-correlated random processes and using an extended Fisher-Hartwig conjecture. The resulting statistics exhibits combined features of counting statistics of Fermions with Sutherland-type interaction and extremal statistics of the fractional Brownian motion with Hurst index H = 0. Some of the features are expected to be universal. The talk is based on the paper Fyodorov-Le Doussal arXiv:2001.04135.

Ansprechpartner:

Gernot Akemann

Seminar Bielefeld-Melbourne Zufallsmatrizen

Thema:

Strong Asymptotics of Planar Orthogonal Polynomials: Gaussian Weight Perturbed by Point Charges

Datum:

25.11.20

Uhrzeit:

09:00

Ort:

ZOOM / Konferenzschaltung

Vortragender:

Meng Yang

University of Copenhagen

Inhalt:

Please see linked file

Ansprechpartner:

Thorsten Neuschel



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  • | Letzte Änderung: 30.06.2020
  •  Olaf Kaczmarek
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