Loschmidt Echo for Deformed Wigner Matrices

László Erdős, Joscha Henheik, Oleksii Kolupaiev

We consider two Hamiltonians that are close to each other, $H_1\approx H_2$, and analyze the time-decay of the corresponding Loschmidt echo $\mathfrak{M}(t) := |\langle ψ_0, \mat…