Bonn 2025 – scientific programme
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QI: Fachverband Quanteninformation
QI 38: Quantum Thermodynamics
QI 38.6: Talk
Friday, March 14, 2025, 12:15–12:30, HS IX
Non-Markovian Noise Driving a Single-Atom Heat Engine — •Moritz Göb1, Bo Deng1,2, Milton Aguilar3, Max Masuhr1,2, Daqing Wang1,2, Eric Lutz3, and Kilian Singer1 — 1Experimental Physics I, Institute of Physics, University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel — 2Institute of Applied Physics, University of Bonn, Wegelerstraße 8, 53115 Bonn — 3Institute for Theoretical Physics I, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart
We present a Paul trap with a tapered geometry [1]. The radio frequency electrodes are angled in axial direction. This configuration yields a coupling of the motional radial and axial degrees of freedom, allowing for the implementation of a single-atom heat engine [2] and duffing-like oscillator [3]. In this contribution, we present the design, implementation, and characterization of such an ion trap. Furthermore, we present first results of using non-Markovian noise to drive a heat engine.
[1] B. Deng, M. Göb, M. Masuhr, J. Roßnagel, G. Jacob, D. Wang and K. Singer, Quantum Sci. Technol. 10 015017 (2025).
[2] J. Roßnagel, S. T. Dawkins, K. N. Tolazzi, O. Abah, E. Lutz, F. Schmidt-Kaler, and K. Singer, Science 352, 325 (2016).
[3] B. Deng, M. Göb, B. A. Stickler, M. Masuhr, K. Singer and D. Wang, PRL 131, 153601 (2023).
Keywords: Trapped Ion; Non-Linear Oscillator; Tapered Paul Trap; Heat Engine