The generalized Aubry-André model exhibits an ergodic-MBL transition whose critical disorder strength is characterized via the Frobenius norm of the adiabatic gauge potential, with finite-size scaling and Thouless time analysis.
We first calculate the eigenstates of the GAA Hamiltonian by exact diagonal- isation and calculate the observables such as adjacent gap ratio ⟨r⟩ and fidelity susceptibility F
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Characterization of Thermalization Behaviour in a Generalized Aubry-Andr\'e Model
The generalized Aubry-André model exhibits an ergodic-MBL transition whose critical disorder strength is characterized via the Frobenius norm of the adiabatic gauge potential, with finite-size scaling and Thouless time analysis.