Quantum thermodynamics in superconducting circuits: interference and thermalization
Jukka Pekola (Aalto University, Espoo, Finland)
Superconducting circuits combined with engineered heat baths form a basis to investigate quantum thermodynamics on a chip [1]. I will present our experimental work on bolometric detection of quantum interference in such a system. We consider a driven system composed of a strongly coupled qubit and a cavity [2,3]. As a second topic, I introduce ideas of thermalization in isolated quantum circuits [4,5,6].
[1] Christoforus Dimas Satrya, Yu-Cheng Chang, Aleksandr S. Strelnikov, Rishabh Upadhyay, Ilari K. Makinen, Joonas T. Peltonen, Bayan Karimi, Jukka P. Pekola, Nat. Commun. 16, 4435 (2025).
[2] Oleh V. Ivakhnenko, Christoforus Dimas Satrya, Yu-Cheng Chang, Rishabh Upadhyay, Joonas T. Peltonen, Sergey N. Shevchenko, Franco Nori, Jukka P. Pekola, arXiv:2508.03188 (2025).
[3] Christoforus Dimas Satrya, Aleksandr S. Strelnikov, Luca MagazzĂą, Yu-Cheng Chang, Rishabh Upadhyay, Joonas T. Peltonen, Bayan Karimi, Jukka P. Pekola, arXiv:2510.23092 (2025).
[4] J. P. Pekola, and B. Karimi, Phys. Rev. Research 6, L042023 (2024).
[5] J. P. Pekola, B. Karimi, M. Cattaneo, and S. Maniscalco, Long-time relaxation of a finite spin bath linearly coupled to a qubit, Open Syst. Inf. Dyn. 30, 2350009 (2023).
[6] Bayan Karimi, Xuntao Wu, Andrew Cleland, and Jukka Pekola, arXiv:2508.13489 (2025).