https://doi.org/10.1140/epjc/s10052-024-12858-8
Regular Article - Theoretical Physics
Observational tests of 4D double field theory
1
Department of mathematicas and applied mathematics, Beijing University of Chemical Technology, 100029, Beijing, China
2
School of Physics and Astronomy, University of Nottingham, University Park, NG7 2RD, Nottingham, UK
3
Nottingham Centre of Gravity, University of Nottingham, NG7 2RD, Nottingham, UK
Received:
4
March
2024
Accepted:
26
April
2024
Published online:
14
May
2024
Although General Relativity (GR) is a very successful theory of gravity, it cannot explain every observational phenomenon. People have tried many kinds of modified gravity theory to explain these phenomena which GR cannot explain very well, such as string theory. In recent years Double Field Theory (DFT) has been an exciting research area in string theory. The most general, spherically symmetric, asymptotically flat, static vacuum solution to double field theory has been derived by S.M. Ko, J.H. Park and M. Suh. In this article, we calculate the minor corrections to the three predictions in GR: optical deflation, planet precession and gravitational redshift. These three predictions should be able to tested by observations and find the discrepancies between GR and DFT in the future.
© The Author(s) 2024
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