We show that a harmonic lattice model with PT-symmetrically arranged amplifying and attenuating elements, when coupled to two thermal baths, exhibits unique heat transport properties. Some of these novel features include anomalous non-equilibrium steady state heat currents, negative differential thermal conductance, as well as non-reciprocal heat transport. We propose an electronic experimental set-up based in LRC transmission lines, where our predictions can be tested. |
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