Triple

Target class: nonequilibrium system
Context triple: [Floquet systems, instanceOf, nonequilibrium system]

• A. model of irreversibility
  A model of irreversibility is a conceptual framework that represents processes or systems whose evolution cannot be exactly reversed, typically due to entropy increase, information loss, or path-dependent dynamics.
• B. nonperturbative effect
  A nonperturbative effect is a physical phenomenon that cannot be captured by any finite-order expansion in a small parameter (such as a coupling constant) and instead arises from intrinsically non-linear or exponentially suppressed contributions, like instantons or tunneling.
• C. phase transition theory
  Phase transition theory is the conceptual framework that explains how and why systems undergo abrupt qualitative changes in state or behavior when external conditions, such as temperature or pressure, cross critical thresholds.
• D. critique of Boltzmann’s H-theorem
  A critique of Boltzmann’s H-theorem examines the assumptions and limitations of his statistical derivation of the second law of thermodynamics, particularly issues of time-reversal invariance, molecular chaos, and the emergence of irreversibility from reversible microscopic dynamics.
• E. nonperturbative method
  A nonperturbative method is a theoretical or computational approach that captures the full behavior of a system without relying on expansions in a small parameter, allowing it to describe strong-coupling or highly nonlinear regimes where perturbation theory fails.
• F. None of above. chosen