Natural extension of the Generalised Uncertainty Principle

Details Natural extension of the Generalised Uncertainty Principle Natural extension of the Generalised Uncertainty Principle

2007-09-13

arxiv.org/abs/0709.1965v2

Class.Quant.Grav.25:095006,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 1 figure, v2 with added references, revised and extended as published in CQG

Scientific paper

10.1088/0264-9381/25/9/095006

We discuss a gedanken experiment for the simultaneous measurement of the position and momentum of a particle in de Sitter spacetime. We propose an extension of the so-called generalized uncertainty principle (GUP) which implies the existence of a minimum observable momentum. The new GUP is directly connected to the nonzero cosmological constant, which becomes a necessary ingredient for a more complete picture of the quantum spacetime.

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