Announcements

• The current newsletter is available here.
• Bethe-Colloquium by Hitoshi Murayama (Berkeley / Tokyo), May 3rd, 2018
• 21st International Conference
  "Planck 2018 - From the Planck Scale to the Electroweak Scale", May 21st - 25th, 2018
  Local organizing committee: M. Chakraborti, M. Drees (co-chair), H. Dreiner (chair), S. H. Im, M. E. Krauss, V. Martín-Lozano, H. P. Nilles (co-chair), A. Trautner
• Bethe Forum "Grand Unification in the Real World", May 28th - June 1st, 2018
  Organizers: S. Raby (Columbus), L. Anderson (Blacksburg), K. Babu (Stillwater), and H. Dreiner (Bonn).
• Bethe-Colloquium by Ruth Durrer (Geneva), June 21st, 2018
• Bethe Forum "String Theory Challenges in Particle Physics and Cosmology", July 9th - 13th, 2018
  Organizers: M. Ratz (Irvine), G. Honecker (Mainz), H. P. Nilles (Bonn) and Sakura Schäfer-Nameki (Oxford).

Further information will be given as soon as it is available.

The next Bethe Colloquium is scheduled for Thursday, May 3rd (4:15 pm) in Hörsaal I:

• Hitoshi Murayama (Berkeley / Tokyo)
• New Developments on Spontaneous Symmetry Breaking: universal theme to all physics
• Hörsaal I, Physikalisches Institut

Abstract: The concept of spontaneous symmetry breaking was developed by a group of outstanding physicists including both condensed matter and particle physicists. Every textbook on Quantum Field Theory quotes the Goldstone's theorem, which states that there are dim (G/H) gapless excitations when the symmetry group G of the Hamiltonian is spontaneously broken with only its subgroup H respected by the ground state. Its has been known for more than half a century that this "theorem" doesn't work in a simple piece of magnet on the fridge. I discuss how the "theorem" is generalized when applied to systems without Lorentz invariance, and a deep mathematical structure behind it called pre-sympletic structure on homogeneous spaces. I will also discuss applications of the newly developed framework to spacetime symmetries, skyrmions, etc.

The 21st International Conference "Planck 2018 - From the Planck Scale to the Electroweak scale" will take place from May 21st to May 25th, 2018, at Universität Bonn.

The conference is organized by the Bethe Center for Theoretical Physics (bctp) of the Universität Bonn for a network consisting of several European research groups: Bonn, CERN, Trieste, Madrid, Oxford, Padua, Paris and Warsaw.
More information as well as the registration form are available here.

There is an accompanying Bethe Forum Program in the week following the conference.

The Bethe Forum on "Grand Unification in the Real World" follows the 21st International Conference "Planck 2018 - From the Planck Scale to the Electroweak Scale" and is scheduled from May 28th to June 1st, 2018. It will take place in the Bethe Center for Theoretical Physics, Bonn. The Bethe Forum is open to master and phd students as well as junior and senior scientists. Apart from talks there will be plenty of time for discussions.
The organizers are Stuart Raby (Columbus), Lara Anderson (Blacksburg, Kaladi S. Babu (Stillwater) and Herbert Dreiner (Bonn).

Registration is free. The registration form as well as more information are available on the event webpage.