Środowiskowe Seminarium z Informacji i Technologii Kwantowych

The Hong-Ou-Mandel effect is a fundamental quantum interference phenomena of two photons in a ballanced beamsplitter, which consists in the cancelation of the amplitude of the two photons being detected separated. Generalizations of this effect in higher order interferometers are called suppression laws. It was recently suggested that the bosonic suppression laws follow from a common permutation symmetry in the input quantum state and in the unitary matrix of the interferometer. Our results reveals that, even on asymmetric interferometers, there are a whole families of suppression laws for the interference of Fock states, beyond the previously formulated permutation symmetry principle.