Motivated by the objective of quantifying the energetic cost of accessing boundary phases through local control, we investigate here a simple, analytically tractable quantum impurity model. This model exhibits a rich boundary phase diagram, characterized by phases with different numbers of edge states. By considering a local quench protocol that drives the system out of equilibrium, we calculate exactly the resulting quantum work distribution across these phases. Our results show that the presence of edge states strongly alters this distribution. In particular, we analytically determine the signatures of these states in the low-, intermediate-, and high-energy sectors.

Close

PrevNext

View figure in article

• Edge states
• Impurities in superconductors
• Spin dynamics
• Topological superconductors
• 1-dimensional spin chains
• Exact solutions for many-body systems
• Single impurity model
• Spin lattice models