One-state vector formalism for the evolution of a quantum state through nested Mach-Zehnder interferometers
One-state vector formalism for the evolution of a quantum state through nested Mach-Zehnder interferometers
Linear-optical interferometers play a key role in designing circuits for quantum information processing and quantum communications. Even though nested Mach-Zehnder interferometers appear easy to describe, there are occasions when they provide unintuitive results. This paper explains the results of a highly discussed experiment performed by Danan et al. [Phys. Rev. …