Speeding up a quantum refrigerator via counterdiabatic driving
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
Series
Physical Review B, Volume 100, issue 3, pp. 1-8
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.Description
| openaire: EC/H2020/742559/EU//SQH | openaire: EC/H2020/766025/EU//QuESTech
Keywords
Other note
Citation
Funo, K, Lambert, N, Karimi, B, Pekola, J P, Masuyama, Y & Nori, F 2019, 'Speeding up a quantum refrigerator via counterdiabatic driving', Physical Review B, vol. 100, no. 3, 035407, pp. 1-8. https://doi.org/10.1103/PhysRevB.100.035407