“…To date, numerous analytical and numerical techniques have been employed to study the NESB, each providing varying levels of insight into its heat transport characteristics. These include perturbative master equations [1,21], nonequilibrium Green's function methods [24,25], path integral techniques [26][27][28][29], the reaction-coordinate method [30,31], the hierarchical equations of motion (HEOM) [32][33][34][35][36][37], and the time-evolving matrix product operator technique [38], among others. Perturbative master equations constitute a standard tool of open quantum systems theory [39] and have been shown to capture resonant heat transfer in the NESB up to second-order in the system-bath coupling.…”