Physicists suggest time may not be a fundamental aspect of reality but an emergent property from quantum entanglement. A study published in Physical Review A proposes the Page and Wootters mechanism, where time emerges through the entanglement between a clock and the system it measures, offering a potential resolution to the inconsistency of time in quantum mechanics and general relativity.
This article discusses the implementation of a procedure for defining time using entangled systems according to the Page and Wootters approach. The authors study how quantum dynamics transform into classical-like behavior and analyze the relations that must hold between quantities of the system and the clock for the overall picture to represent physical dynamics.
