Nonequilibrium dynamical renormalization group: Dynamical crossover from weak to infinite randomness in the transverse-field Ising chain

Understand

In this work we formulate the nonequilibrium dynamical renormalization group (ndRG).

• The ndRG represents a general renormalization-group scheme for the analytical description of the real-time dynamics of complex quantum many-body systems.
• In particular, the ndRG incorporates time as an additional scale which turns out to be important for the description of the long-time dynamics.
• It can be applied to both translational invariant and disordered systems.