Starts 27 Nov 2018 11:00
Ends 27 Nov 2018 12:00
Central European Time
SISSA, Via Bonomea 265, Room 128
Critical lattice models with a non-hermitian Hamiltonian are described by non-unitary CFTs. There are many physical applications such as open quantum systems, geometrical problems or electronic disordered systems. We know that in many cases we can define the notion of effective central charge.I will show why this quantity is important in two problems: the scaling of the entanglement entropy and the identification of universality classes in truncated models. I will illustrate the discussion with examples such as the XXZ model, supersymmetric spin chains, loop models and truncations of the Brownian motion.