Time paradox in Quantum Gravity
Alfredo Macias, Hernando Quevedo
TL;DR
This paper reviews the conflicting concepts of time in quantum mechanics and general relativity, highlighting the incompatibility and issues arising from their differing treatments of time.
Contribution
It provides a comprehensive analysis of the conceptual differences of time in quantum mechanics and general relativity, emphasizing the need for a unified understanding.
Findings
Quantum mechanics treats time as absolute and fixed.
General relativity considers time as a dynamical, flexible entity.
The incompatibility poses fundamental challenges for quantum gravity theories.
Abstract
The aim of this work is to review the concepts of time in quantum mechanics and general relativity to show their incompatibility. We show that the absolute character of Newtonian time is present in quantum mechanics and also partially in quantum field theories which consider the Minkowski metric as the background spacetime. We discuss the problems which this non-dynamical concept of time causes in general relativity that is characterized by a dynamical spacetime.
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Taxonomy
TopicsQuantum Mechanics and Applications · Noncommutative and Quantum Gravity Theories · Cosmology and Gravitation Theories