Abstract
We propose and theoretically analyse a superconducting electric circuit which can be used to experimentally realize an autonomous quantum heat engine. Using a quasiclassical, non-Markovian theoretical model, we demonstrate that coherent microwave power generation can emerge solely from the heat flow through the circuit determined by non-linear circuit quantum electrodynamics. The predicted energy generation rate is sufficiently high for experimental observation with contemporary techniques, rendering this work a significant step toward the first experimental realization of an autonomous quantum heat engine based on Otto cycles.
| Original language | English |
|---|---|
| Article number | 101 |
| Journal | SciPost Physics |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Oct 2025 |
| MoE publication type | A1 Journal article-refereed |
Funding
This work was funded by the Academy of Finland Centre of Excellence program (Projects No. 352925 and No. 336810) and Academy of Finland Grants No. 316619 and No. 349594 (THEPOW). We also acknowledge funding from the European Research Council under Advanced Grant No. 101053801 (ConceptQ).