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How higher-dimensional torsion traps fermions on our brane

Allan R. P. Moreira, Fernando M. Belchior, Guo-Hua Sun, Shi-Hai Dong

May 21, 2026

In braneworld models where our universe is a slice of a five-dimensional space, getting matter to stick to the brane requires a mechanism. Adding a torsion-based Gauss-Bonnet term to gravity reshapes the effective potential felt by fermions, locking only one chiral component to the brane and generating resonant quasi-bound states in the massive spectrum. Shannon entropy measures confirm the torsional corrections produce tighter localization than standard models — a concrete handle on how higher-order gravity terms influence matter trapping in extra dimensions.
Published as New mechanism for fermion localization in $f(T,T_G)$-brane arXiv:2605.21838
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