Quantum channel for states of light as based on integrals of motion
V. N. Gorbachev, A. I. Trubilko · Journal of Experimental and Theoretical Physics Letters · 2006
A method based on integrals of motion for collective processes has been proposed for constructing physical schemes in which the state of one of the subsystems is insensitive to interaction. Decoherence-free quantum channels that allow transmission of an arbitrary light state including the Fock state through an absorbing medium are considered as an example.