Announcements
Upcoming events
 BetheColloquium by Dieter Zeppenfeld (Karlsruher Institut für Technologie  KIT, TP), November 21st, 2019
 BetheColloquium by UweJens Wiese (University of Bern), December 5th, 2019
 BetheColloquium by Herbert Spohn (TUM), January 9th, 2020
 BetheColloquium by Astrid Eichhorn (SDU, Odense / Heidelberg), January 23rd, 2020
 Lecture Series on the "Cosmic Microwave Background" by Raphael Flauger (UC San Diego), February 10  14, 2020

Bethe Forum "Inflation", March 23  27, 2020
Organizers: M. Peloso (Padua), M. Drees (Bonn), H. P. Nilles (Bonn) and Ivonne Zavala (Swansea)  Bethe Forum "Modular Flavor Symmetries", May 48, 2020
Organizers: M. Ratz (Irvine), F. Feruglio (Padua), T. Kobayashi (Sapporo) and H. P. Nilles (Bonn).
Further information will be given as soon as it is available.
Bethe Colloquium by Dieter Zeppenfeld
This month's Bethe Colloquium will take place on Thursday, November 21st, 2019, at 4:15 pm in Hörsaal I.
 Dieter Zeppenfeld (Karlsruher Institut für Technologie  KIT, TP)
 Diboson production at the LHC
 Hörsaal I, Physikalisches Institut
Abstract: Diboson production processes provide a rich testing ground for SM predictions at the LHC. The talk will discuss recent progress in vector boson pair production from quarkantiquark annihilation as well as vector boson scattering processes. Both put stringent constraints on extensions of the SM as parameterized by effective field theories.
Bethe Colloquium by UweJens Wiese
December's Bethe Colloquium will take place on Thursday, December 5th, 2019, at 5:15 pm in Hörsaal I.
Please take note of the unusual time!
 UweJens Wiese (University of Bern)
 Quantum Simulation of Abelian and nonAbelian Gauge Theories
 Hörsaal I, Physikalisches Institut
Abstract: Strongly coupled gauge theories play an important role in different areas of physics. Quantum Chromodynamics is the nonAbelian SU(2) gauge theory that describes the strong interactions between quarks and gluons in particle physics. Some strongly correlated electron systems in condensed matter physics are described by Abelian U(1) gauge theories, and the toric code, a quantum information storage device, is an Abelian Z(2) gauge theory. Many nontrivial aspects of gauge theories are accessible to accurate numerical simulations on classical computers. However, at high fermion density or in outofequilibrium situations such simulations suffer from notorious sign problems that prevent the importance sampling underlying Monte Carlo calculations. Quantum simulators are accurately controllable quantum devices that mimic other quantum systems. They do not suffer from sign problems, because their hardware is intrinsically quantum mechanical. For example, trapped ions that follow a laserdriven stroboscopic discrete time evolution through a sequence of quantum gate operations, have been used as a digital quantum simulator for particleantiparticle pair creation. Analog quantum simulators, on the other hand, follow the continuous timeevolution of a tunable model Hamiltonian. Using ultracold atoms in optical lattices, analog quantum simulators have been designed for Abelian and nonAbelian gauge theories. Their experimental realization is a challenge for the foreseeable future, which holds the promise to access the realtime dynamics of string breaking, the outofequilibrium decay of a false vacuum, or the evolution af a chiral condensate after a quench, from first principles. Quantum link models which realize gauge theories including QCD, not with classical fields but with discrete quantum degrees of freedom, are ideally suited for implementation in ultracold quantum matter. For example, the nuclear spin of alkalineearth atoms can be used to embody the SU(3) color degrees of freedom of quarks and gluons. SU(3) quantum spin ladders are closely related condensed matter systems which can be quantum simulated in a similar manner.
Bethe Forum "Inflation"
More information and the registration form can be found on the event webpage.
Further events will be announced as soon as possible.