The Uncertainty Principle and the Minimal Space–Time Length Element

Quantum gravity theories rely on a minimal measurable length for their formulations, which clashes with the classical formulation of the uncertainty principle and with Lorentz invariance from general relativity. These incompatibilities led to the development of the generalized uncertainty principle...

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Bibliographic Details
Main Authors: David Escors, Grazyna Kochan
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Physics
Subjects:
Online Access:https://www.mdpi.com/2624-8174/4/4/79
Description
Summary:Quantum gravity theories rely on a minimal measurable length for their formulations, which clashes with the classical formulation of the uncertainty principle and with Lorentz invariance from general relativity. These incompatibilities led to the development of the generalized uncertainty principle (GUP) from string theories and its various modifications. GUP and covariant formulations of the uncertainty principle are discussed, together with implications for space–time quantization.
ISSN:2624-8174