Discreteness of space from GUP in a weak gravitational field

Thumbnail Image
Deb, Soumen
Das, Saurya
Vagenas, Elias C.
Journal Title
Journal ISSN
Volume Title
Quantum gravity effects modify the Heisenberg's uncertainty principle to a generalized uncertainty principle (GUP). Earlier work showed that the GUP-induced corrections to the Schrödinger equation, when applied to a non-relativistic particle in a one-dimensional box, led to the quantization of length. Similarly, corrections to the Klein–Gordon and the Dirac equations, gave rise to length, area and volume quantizations. These results suggest a fundamental granular structure of space. In this work, it is investigated how spacetime curvature and gravity might influence this discreteness of space. In particular, by adding a weak gravitational background field to the above three quantum equations, it is shown that quantization of lengths, areas and volumes continue to hold. However, it should be noted that the nature of this new quantization is quite complex and under proper limits, it reduces to cases without gravity. These results suggest that quantum gravity effects are universal.
Sherpa Romeo green journal. Open access article. Creative Commons Attribution 4.0 International License (CC BY 4.0) applies.
Gravitational field , Spacetime curvature , Generalized uncertainty principle , Discreteness of space
Deb, S., Das, S., & Vagenas, E. C. (2016). Discreteness of space from GUP in a weak gravitational field. Physics Letters B, 755, 17-23. http://dx.doi.org/10.1016/j.physletb.2016.01.059