期刊
MODERN PHYSICS LETTERS A
卷 33, 期 19, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217732318501109
关键词
Gravitation; gravitational time advancement; brane world models
资金
- National Natural Science Foundation of China [11773080, 11473072, 11533004]
Solar System tests of a brane world, which is called DMPR model, were studied in recent works. The correction of DMPR model to the general relativity (GR) in the four-dimensional curved spacetime can be parametrized by a tidal charge parameter Q. The parameter Q in this model was obtained and improved as vertical bar Q vertical bar less than or similar to 6.7 m(2) by the Earth-Mercury ranging. A new test of the DMPR model based on gravitational time advancement is proposed and investigated in this work. The advancement is a gravitational consequence on round-trip proper time duration of a photon. For ranging a distant spacecraft, it is shown that (1) the tidal charge parameter can make the advancement larger or smaller than the one of GR, depending on the sign of Q; (2) the superior conjunction (SC) and the inferior conjunction (IC) are all suitable for detecting the advancement; (3) the advancement can be complementary to the classical test of Shapiro time delay for detecting the brane world; and (4) the implementation of optical clocks and planetary laser ranging will provide more insights on the brane world model in the future.
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