most citedFinite time path field theory and a new type of universal quantum spin chain quench behavior

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quant-ph2024

Finite time path field theory perturbative methods for local quantum spin chain quenches

Domagoj Kuić, Alemka Knapp, Diana Šaponja-Milutinović

We discuss local magnetic field quenches using perturbative methods of finite time path field theory (FTPFT) in the following spin chains: Ising and XY in a transverse magnetic fie…