Entanglement hamiltonians in 1D free lattice models after a global quantum quench

Understand

We study the temporal evolution of the entanglement hamiltonian of an interval after a global quantum quenchin free lattice models in one spatial dimension.

• In a harmonic chain we explore a quench of the frequency parameter.
• In a chain of free fermions at half filling we consider the evolution of the ground state of a fully dimerised chain through the homogeneous hamiltonian.
• We focus on critical evolution hamiltonians.