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Q: Fachverband Quantenoptik und Photonik

Q 12: Quantum Technology

Q 12.4: Poster

Mittwoch, 22. September 2021, 16:30–18:30, P

Autonomous Single Atom Heat Engine — •Bo Deng, Moritz Göb, Max Masuhr, Kilian Singer, and Daqing Wang — Institut für Physik, Universität Kassel, Kassel, Germany

Here, we present our recent advances towards realizing an autonomous heat engine with a single atomic ion. The engine is based on a single ⁴⁰Ca⁺-ion confined in a tapered Paul trap. We propose implementing thermal baths with two tightly focused laser beams at different frequency detunings from the Doppler cooling transition. Furthermore, we employ a sub-Hertz linewidth laser system to address the 4²S_1/2 to 3²D_5/2 quadrupole transition. This will be used to perform side-band resolved ground state cooling, enabling the utilization of quantum reservoirs^[1] to drive the single-atom heat engine.

[1]A. Levy, M. Göb, B. Deng, K. Singer, E. Torrontegui and D. Wang, Single-atom Heat Engine as A Sensitive Thermal Probe, New Journal of Physics 22.9(2020)