University of Geneva

Title: Entangled Hanbury Brown Twiss effects with edge states

Abstract: Electronic analogs of optical Hanbury Brown Twiss correlations are discussed for geometries in which transport is along adiabatically guided edge channels. We consider a two-source Hanbury Brown Twiss experiment which demonstrates strikingly that even in geometries without an Aharonov-Bohm effect in the conductance matrix (second-order interference), correlation functions can (due to fourth-order interference) be sensitive to a flux. Interestingly we find that this fourth-order interference effect is closely related to orbital entanglement. In this geometry, entanglement can be detected via violation a Bell Inequality even so particles emanate from uncorrelated sources.