Heat current across a capacitively coupled double quantum dot

摘要: We study the heat current through two capacitively coupled quantum dots in series with conducting leads at different temperatures ${T}_{L}$ and ${T}_{R}$ spinless case (valid for a high applied magnetic field). Our results are also valid single dot strongly ferromagnetic pointing opposite directions (so that electrons given spin can jump only to one lead) or degenerate levels destructive interference field. Although charge is always zero, finite when interdot Coulomb repulsion $U$ taken into account due many-body effects. thermal conductance as function of temperature dependence couplings leads, ${T}_{L}\ensuremath{-}{T}_{R}$, energy $U$, including conditions which an orbital Kondo regime takes place. When different, device has rectifying properties current. find ratio between resulting from bias ${T}_{L}g{T}_{R}$ ${T}_{L}l{T}_{R}$ maximized particular values levels, above other below Fermi level.