Kay Joerg Wiese, Andrei A. Fedorenko. Depinning transition of charge-density waves: mapping onto $O(n)$ symmetric $\phi^4$ theory with $n\to -2$ and loop-erased random walks.
Physical Review Letters, American Physical Society, 2019,
⟨10.1103/PhysRevLett.123.197601⟩.
⟨hal-02276450⟩