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arXiv · 1905.03480

Speeding-up a quantum refrigerator via counter-diabatic driving

Ken Funo·Neill Lambert·Bayan Karimi·Jukka P. Pekola·Yuta Masuyama·Franco Nori
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Abstract

We study the application of a counter-diabatic driving (CD) technique to enhance the thermodynamic efficiency and power of a quantum Otto refrigerator based on a superconducting qubit coupled to two resonant circuits. Although the CD technique is originally designed to counteract non-adiabatic coherent excitations in isolated systems, we find that it also works effectively in the open system dynamics, improving the coherence-induced losses of efficiency and power. We compare the CD dynamics with its classical counterpart, and find a deviation that arises because the CD is designed to follow the energy eigenbasis of the original Hamiltonian, but the heat baths thermalize the system in a different basis. We also discuss possible experimental realizations of our model.

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Ken Funo, Neill Lambert, Bayan Karimi, Jukka P. Pekola, Yuta Masuyama, Franco Nori. 2019-07-09. Speeding-up a quantum refrigerator via counter-diabatic driving. https://doi.org/10.1103/physrevb.100.035407

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