Junior Coffee Breaks

With the proof of Widom’s conjecture giving new insights on the entanglement properties of the non-relativistic free Fermi gas, it is a natural question whether this situation extends to the relativistic case, where the single-particle Hamiltonian is given by the free Dirac operator. In this talk I give a brief introduction to both the Widom-Sobolev […]

We study the dynamical density and current responses of a class of non-interacting, one-dimensional gapless lattice Fermi systems subjected to density-type perturbations slowly varying in space and time, in the infinite-volume and zero-temperature limit. In addition, we analyse the edge density and current responses for quantum Hall lattice systems defined on a cylindrical geometry. We […]