The Background as a Quantum Observable: Einstein’s Hole Argument in a Quasiclassical Context
نویسنده
چکیده
We consider a thought experiment measuring the decoherence for quasiclassical superpositions of gravitational field. The hole argument allows to prove that a covariant (background-free) theory is completely unable to define the outcome of this experiment and is therefore not viable. Instead, the results of experiments of this type allow to reconstruct a common background shared by all superposed gravitational fields.
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تاریخ انتشار 2009