“Time” replaced by quantum correlations
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Abstract coordinate time is not observable, but “clock time” is observable, Therefore, any statement about temporal evolution can be replaced, without loss of observational content, by a statement about correlations between a clock and another physical system. We show that information about such correlations can be represented just as well in a single “timeless” quantum state as in a whole history of states. It is therefore not necessary to include “time” as a basic element in the description of the world.
KeywordsField Theory Elementary Particle Quantum Field Theory Temporal Evolution Physical System
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