The LQP colloquium aims at communicating and promoting outstanding research in the context of local quantum physics, within the LQP community and beyond. The colloquium is held as a webinar and is intended to take place bi-annually.

The next event takes place March 16, 2022, 5pm CET (4pm UTC):

Feng Xu (UC Riverside): Rigorous results about entropy in QFT

Abstract: We will present some  rigorous results about Relative entropy and entropy in QFT, motivated in part by recent physicists work which however depends on heuristic arguments such as introducing cut off and using path integrals. In the particular case of CFT, we will discuss interesting relations between relative entropy, central charge and global dimension of conformal net, and asymptotics of entropy which comes from split property.

Login details for the talk will be distributed via newsletter (follow the link to subscribe).

Past events are available on our youtube channel.

Past events in the series:

  • November 24, 2021: Hirosi Ooguri​ (Caltech & Kavli IPMU): Symmetry in QFT and Gravity​
  • March 17, 2021: Horacio Casini (Bariloche Atomic Centre): Entanglement entropy and the renormalization group flow
  • Sep 16, 2020: Klaus Fredenhagen (U Hamburg): Local covariance and dynamics in algebraic quantum field theory


  • S. Hollands (U. Leipzig & MPI-MiS)
  • Y. Kawahigashi (U. Tokyo)
  • G. Lechner (FAU Erlangen)
  • R. Longo (Roma II)
  • K.-H. Rehren (U. Göttingen)

Contact: J. Zahn (U. Leipzig)