Entanglement in inhomogeneous free-fermion chains

par Viktor Eisler (Institute of Theoretical and Computational Physics TU Graz)

jeudi 7 mai 2026, 11:00 → 12:00 Europe/Paris

Auditorium Vivargent (LAPTh)

The characterization of entanglement has been a long-standing goal of quantum many-body physics. The efforts of the last decades have led to crucial insights, such as the emergence of an entanglement area law for ground states. While the predictions have been abundantly tested and confirmed for translationally invariant states, the picture is still incomplete for systems with genuine inhomogeneities. In my talk I’m gonna address various questions on the structure of entanglement in the inhomogeneous setup, using the simplest testbed of non-interacting fermions. It is demonstrated how these models allow for a consistent field-theoretical description, and what implications it has for the characterization of entanglement. Besides the ground-state scenario, I will also present some results for systems driven far from equilibrium.