  Interferometry is a powerful tool for entanglement production and detection
in multiterminal mesoscopic systems. Here we propose a setup to produce,
manipulate and detect entanglement in the electron-hole degree of freedom by
exploiting Andreev reflection on chiral one-dimensional channels via
interferometry. We study the best possible case in which two-particle
interferometry produces superpositions of maximally entangled states. This is
achieved by mixing chiral Dirac channels through chiral Majorana modes. We show
that it is possible to extract entanglement witnesses through current
cross-correlation measurements.
