37 citations · 146 across the 12 of their papers we have counts for
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hep-ph2025★ 2 cited
Shower formation in the presence of a string-inspired foam in space-time
Chengyi Li
It was recently proposed that predictions of Lorentz-breaking space-time foam models from string theory may be compatible with the suggestion of light-speed variation from gamma-ra…
hep-ph2025★ 4 cited
Probes for String-Inspired Foam, Lorentz, and CPT Violations in Astrophysics
Chengyi Li, Bo-Qiang Ma
Lorentz invariance is such a basic principle in fundamental physics that it must be constantly tested and that any proposal of its violation and breakdown of CPT symmetry, that mig…
hep-ph2025★ 2 cited
Constraints to Lorentz violation and ultrahigh-energy electrons in D-foamy space-times
Chengyi Li, Bo-Qiang Ma
We entertain the constraints that the absence of vacuum Cherenkov radiation of ultrahigh-energy electrons inferred from LHAASO observations of the Crab Nebula can impose on generic…