What is it like to be a Schrödinger cat?

dn22336-1_300Hrvoje Nikolic
The possibility of quantum interference of a composite object with many internal degrees of freedom is studied from the point of view of the object itself.
The internal degrees play a role of an internal environment.
In particular, if the internal degrees have a capacity for an irreversible record of which-path information, then the internal-environment induced decoherence prevents external experimentalists from observing interference. Interference can be observed only if the interfering object is sufficiently isolated from the external environment, so that the object cannot record which-path information.
Extrapolation to a hypothetical interference experiment with a conscious object implies that being a Schrödinger cat would be like being an ordinary cat living in a box without any information about the world external to the box….
… Read more at http://arxiv.org/pdf/1406.3221v1.pdf

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