Quantum Superposition of Parametrically Amplified Multiphoton Pure States whitin a Decoherence-Free Schroedinger-Cat Structure

F. A. Bovino, F. De Martini, V. Mussi

The new process of quantum-injection into an optical parametric amplifier operating in entangled configuration is adopted to amplify into a large dimensionality spin 1/2 Hilbert sp…