Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 22: Posters: Quantum Optics and Photonics II
Q 22.44: Poster
Tuesday, March 10, 2020, 16:30–18:30, Empore Lichthof
Dynamics of a single-ion heat engine: towards a sensitive bath sensor — •Bo Deng1, Moritz Goeb1, Erik Torrontegui2, Amikam Levy3,4, Samuel Dawkins1, Kilian Singer1, and Daqing Wang1 — 1Experimentalphysik I, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany — 2Instituto de Fisica Fundamental IFF-CSIC, Calle Serrano 113b, E-28006 Madrid, Spain — 3Department of Chemistry, University of California Berkeley, Berkeley, California — 4The Raymond and Beverly Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 69978, Israel
Recently, a single-ion heat engine was demonstrated [1]. Here, we present analytical and numerical modelling of its dynamical behaviors under the driving of thermal and non-thermal baths. A convenient and sensitive method to characterize unknown heat baths is developed. To realize the measurement, a controlled bath with a known temperature is required for reference. The unknown bath to be tested and the reference bath interact with the ion periodically. The characterization of the unknown bath is extracted from the evolution of the ion's axial oscillation. The sensitivity of this method is analyzed and compared to traditional methods of temperature measurement. Recent experimental progress is presented.
[1] J. Rossnagel, S. T. Dawkins, K. N. Tolazzi, O. Abah, E. Lutz, F. Schmidt-Kaler and K. Singer, Science 352 325 (2016).