Schrödinger's Kitten
Schrödinger's Kitten is a 1988 novella by American writer George Alec Effinger, which won a Hugo Award, a Nebula Award, a Theodore Sturgeon Award and the Japanese Seiun Award.
The story utilizes a form of the many-worlds hypothesis, and is named after the Schrödinger's cat thought experiment. It first appeared in Omni.