Continuous measurement boosted adiabatic quantum thermal machiens

We study continuous measurement based quantum thermal machines in static as well as adiabatically driven systems. In the adiabatically driven case, we show how measurement based thermodynamic quantities can be attributed geometric characteristics. We illustrate the aforementioned ideas and study the phenomena of refrigeration in two different paradigmatic examples: a coupled quantum dot and a coupled qubit system. In the time-independent case, we observe that non-linear coupling (in the coupled qubit case) produces cooling effects in certain regime where otherwise heating is expected. We also observe that quantum coherence can improve the performance of measurement based thermal machines. In the adiabatically driven case, we observe that quantum measurement can provide significant boost to the power of adiabatic quantum refrigerators. The measurement based refrigerators can have similar or better coefficient of performance in the driven case compared to the static one in the regime where heat extraction is maximum. Our results have potential significance for future application in devices ranging from measurement based quantum thermal machines to refrigeration in quantum processing networks.