Quantum heat engine based on quantum interferometry: The SU(1,1) Otto cycle

Journal Article · 17 March 2025 · Physical Review Research

DOI: https://doi.org/10.1103/PhysRevResearch.7.013284 · OSTI ID:2531300

Ferreri, Alessandro ; Wang, Hui ; Nori, Franco ; Wilhelm, Frank K. ; Bruschi, David Edward

We present a quantum heat engine based on a quantum Otto cycle whose working substance reproduces the same outcomes as an $\mathrm{SU}(1,1)$ interference process at the end of each adiabatic transformation. This device takes advantage of the extraordinary quantum metrological features of the $\mathrm{SU}(1,1)$ interferometer to better discriminate the sources of uncertainty of relevant observables during each adiabatic stroke of the cycle. In particular, the $\mathrm{SU}(1,1)$ adiabatic transformations enable high-precision estimations of the energy extracted from the adiabatic stroke, despite the presence of thermal fluctuations. Applications to circuit QED platforms are also discussed. Published by the American Physical Society 2025

• Sponsoring Organization: USDOE
• OSTI ID: 2531300
• Journal Information: Physical Review Research, Journal Name: Physical Review Research Journal Issue: 1 Vol. 7; ISSN 2643-1564; ISSN PPRHAI
• Publisher: American Physical SocietyCopyright Statement
• Country of Publication: United States
• Language: English