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Science 7 April 2006:
Vol. 312. no. 5770, pp. 63 - 64
DOI: 10.1126/science.1125584
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Perspectives

PHYSICS:
New Additions to the Schrödinger Cat Family

Nicolas Gisin

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.

The author is with the Group of Applied Physics, University of Geneva, Ecole de Médecine 20, Geneva 1211, Switzerland. E-mail: nicolas.gisin{at}physics.unige.ch

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Science. ISSN 0036-8075 (print), 1095-9203 (online)