Classical Emulation of Bright Quantum States

The way to emulate classically a number of fundamental quantum mechanical experiments is shown, such as Hong‐Ou‐Mandel interference, phase measurements with NOON states and specifically structured “revivals” in Jaynes‐Cummings model using coherent states with large number of photons. It is also shown that certain classes of bright non‐classical states can be efficiently emulated by our technique independently of the average photon number of these states. It is shown that to demonstrate fundamental quantum effects in the lab and to test quantum setups, one does not really need sophisticated quantum generators. Moreover, it is shown how to step beyond the few‐photon region. A procedure for classical emulation of a variety of bright quantum states is proposed. Using this procedure, one can emulate classically a number of fundamental quantum mechanical experiments, such as Hong‐Ou‐Mandel interference, phase measurements with NOON states and non‐classical population “revivals” in atom‐field interaction. The method is feasible for demonstrating quantum effects in microwave and radio wavelength regions.