A null test of general relativity based on a long-term comparison of atomic transition frequencies
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-018-0156-2
Abstract: The local position invariance principle of general relativity stipulates that non-gravitational experiments should give outcomes that are independent of the position and orientation of the reference frames in which they have been performed. Here, we… read more here.
Keywords: test general; relativity; long term; null test ... See more keywords
Null test of cosmic curvature using deep learning method
Sign Up to like & getrecommendations! Published in 2025 at "Chinese Physics C"
DOI: 10.1088/1674-1137/ae0b42
Abstract: Determining the spatial curvature of the Universe, a fundamental parameter defining the global geometry of spacetime, remains crucial yet contentious due to existing observational tensions. Although Planck satellite measurements have provided precise constraints on spatial… read more here.
Keywords: deep learning; null test; test cosmic; geometry ... See more keywords
A coincidence null test for Poisson-distributed events
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DOI: 10.1103/physrevd.103.042003
Abstract: When transient events are observed with multiple sensors, it is often necessary to establish the significance of coincident events. We derive a universal null test for an arbitrary number of sensors motivated by the archetypal… read more here.
Keywords: gravitational wave; test; poisson distributed; null test ... See more keywords