Título: Entanglement Negativity in Minimal Conformal Field Theories.
(International Institute of Physics, Natal, Brasil)
Abstract: In this seminar, we will reconsider the entanglement in a
tripartite one-dimensional quantum system at the critical point. We
will in particular analyze the reduced density matrix and its partial
transpose, from which one can respectively calculate the entanglement
entropy and the negativity. We will first review how these quantities
can be studied by exploiting the conformal symmetry of the critical
point. Then we will move to present the main results of the the
seminar: we will obtain analytical expressions for the moments of the
reduced density matrix and its partial transpose in terms of conformal
blocks. Finally, we will apply these results to minimal conformal
field theories such as the Tricritical Ising model.
Fecha: jueves 23 de septiembre de 2021
Lugar: Aula 6. Edificio A. Facultad de Ciencias