New Additions to the Schrödinger Cat Family

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Science  07 Apr 2006:
Vol. 312, Issue 5770, pp. 63-64
DOI: 10.1126/science.1125584

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Schrödinger cat states entail superpositions of seemingly opposite quantum states, metaphorically like a cat being both dead and alive. Femotsecond laser pulses can now induce photons into small and unbound Schrödinger kitten states.