5. Theoretical Physics (CSN4)

Hanbury Brown and Twiss interference of anyons

by Dr Gabriele Campagnano (Napoli Univ.)

Europe/Rome
Aula Bruno Touschek (LNF)

Aula Bruno Touschek

LNF

Via Enrico Fermi, 40 00044 Frascati (Roma)
Description
We present a study of an Hanbury Brown and Twiss (HBT) interferometer realized with anyons. Such a device can directly probe entanglement and fractional statistics of initially uncorrelated particles. We calculate HBT cross-correlations of Abelian Laughlin anyons. The correlations we calculate exhibit partial bunching similar to bosons, indicating a substantial statistical transmutation from the underlying electronic degrees of freedom. We also find qualitative differences between the anyonic signal and the corresponding bosonic or fermionic signals, indicating that anyons cannot be simply thought as intermediate between bosons and fermions.