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Abstract
We study the application of a counterdiabatic 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 nonadiabatic 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.
Original language | English |
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Article number | 035407 |
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Physical Review B |
Volume | 100 |
Issue number | 3 |
DOIs | |
Publication status | Published - 8 Jul 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- PYTHON FRAMEWORK
- DYNAMICS
- QUTIP
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SQH: Superconducting quantum heat engines and refrigerators
Pekola, J., Karimi, B., Singh, S., Blanchet, F., Peltonen, J., Subero Rengel, D., Upadhyay, R., Gubaydullin, A., Wang, L., Chang, Y., Mäkinen, I., Marín Suárez, M., Thomas, G., Lvov, D., Mannila, E., Senior, J., Strelnikov, A., Chiang, K., Lemziakov, S., Satrya, C., Chen, Z., Serrati, E. & Praks, E.
27/09/2017 → 30/09/2023
Project: EU: ERC grants
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QuESTech: QUantum Electronics Science and TECHnology training
Pekola, J., Karimi, B. & Peltonen, J.
01/01/2018 → 31/12/2021
Project: EU: Framework programmes funding
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QTF: Finnish Centre of Excellence in Quantum Technology
Pekola, J., Blanchet, F., Golubev, D., Maillet, O., Marín Suárez, M., Mannila, E. & Senior, J.
01/01/2018 → 31/12/2020
Project: Academy of Finland: Other research funding