Generalised Hong-Ou-Mandel Experiments with Bosons and Fermions

Statistical signatures of states orthogonal to the Fock-state ladder of composite bosons

The theory of composite bosons (cobosons) made of two fermions [Phys. Rev. A 71, 034306 (2005), Phys. Rev. Lett. 109, 260403 (2012)] converges to ordinary structureless bosons in the limit of infinitely strong entanglement between the fermionic constituents. For finite entanglement, the annihilation operator ĉ of a composite boson couples the N -coboson Fock-state not only to the (N − 1)-coboso...

Proposal for demonstrating the Hong-Ou-Mandel effect with matter waves.

The Hong-Ou-Mandel effect is a demonstration of destructive quantum interference between pairs of indistinguishable bosons, realised so far only with massless photons. Here we propose an experiment to realize this effect in the matter-wave regime using pair-correlated atoms produced via a collision of two Bose-Einstein condensates and subjected to two laser--induced Bragg pulses. We formulate a...

Zero-transmission law for multiport beam splitters.

The Hong-Ou-Mandel effect is generalized to a configuration of n bosons prepared in the n input ports of a Bell multiport beam splitter. We derive a strict suppression law for most possible output events, consistent with a generic bosonic behavior after suitable coarse graining.

Multimode Hong-Ou-Mandel Interferometry

We review some recent experiments based upon multimode two-photon interference of photon pairs created by spontaneous parametric downconversion. The new element provided by these experiments is the inclusion of the transverse spatial profiles of the pump, signal and idler fields. We discuss multimode Hong-Ou-Mandel interference, and show that the transverse profile of the pump beam can be manip...

Performing Hong-Ou-Mandel-type numerical experiments with repulsive condensates: the case of dark and dark-bright solitons