Quench dynamics and zero-energy modes: The case of the Creutz model
Quench dynamics and zero-energy modes: The case of the Creutz model
In most lattice models, the closing of a band gap typically occurs at high-symmetry points in the Brillouin zone. Differently, in the Creutz model $-$ describing a system of spinless fermions hopping on a two-leg ladder pierced by a magnetic field $-$ the gap closing at the quantum phase transition …