  A recently developed approach to the thermodynamics of open quantum systems,
on the basis of the principle of minimal dissipation, is applied to the
spin-boson model. Employing a numerically exact quantum dynamical treatment
based on the hierarchical equations of motion (HEOM) method, we investigate the
influence of the environment on quantities such as work, heat and entropy
production in a range of parameters which go beyond the weak-coupling limit and
include both the non-adiabatic and the adiabatic regimes. The results reveal
significant differences to the weak-coupling forms of work, heat and entropy
production, which are analyzed in some detail.
