Reversible computation in integrated photonics

Sold-state microphotonics allows to build circuitswhich transform w light beams in a unitary way.Such a circuit transforms a w-dimensional complex vector by meansof a unitary w X w matrix.For the synthesis of the optical circuit,we can learn a lot from properties of quantum circuits, subject to adaptation of the interpretation of the matrix decompositions.Sold-state microphotonics allows to build circuitswhich transform w light beams in a unitary way.Such a circuit transforms a w-dimensional complex vector by meansof a unitary w X w matrix.For the synthesis of the optical circuit,we can learn a lot from properties of quantum circuits, subject to adaptation of the interpretation of the matrix decompositions.P