Experimental generation of “Schrödinger kitten” states of free-propagating light
Alexei Ourjoumtsev, Rosa Tualle-Brouri, Julien Laurat, Philippe Grangier · 2006
We generated ldquoSchrodinger kittenrdquo states, defined as quantum superpositions of small coherent states, by conditional photon subtraction from squeezed light pulses. They present negative Wigner functions and are suitable for quantum information processing.