@article{19001,
  abstract     = {We consider two Hamiltonians that are close to each other, H1≈H2, and analyze the time-decay of the corresponding Loschmidt echo M(t):=|⟨ψ0,eitH2e−itH1ψ0⟩|2 that expresses the effect of an imperfect time reversal on the initial state ψ0. Our model Hamiltonians are deformed Wigner matrices that do not share a common eigenbasis. The main tools for our results are two-resolvent laws for such H1 and H2.},
  author       = {Erdös, László and Henheik, Sven Joscha and Kolupaiev, Oleksii},
  issn         = {1573-0530},
  journal      = {Letters in Mathematical Physics},
  publisher    = {Springer Nature},
  title        = {{Loschmidt echo for deformed Wigner matrices}},
  doi          = {10.1007/s11005-025-01904-5},
  volume       = {115},
  year         = {2025},
}