Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 65: Ultra-cold Atoms, Ions and BEC V (joint session A/Q)
Q 65.4: Vortrag
Freitag, 15. März 2024, 15:15–15:30, HS 1010
Towards Probing Heat Transport in an Anharmonic Ion Chain — •Moritz Göb1, Bo Deng1, Lea Lautenbacher2, Giovanni Spaventa2, Daqing Wang1,3, Susana F. Huelga2, Martin B. Plenio2, and Kilian Singer1 — 1Institut für Physik, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany — 2Institut für Theoretische Physik und IQST, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany — 3Institut für Angewandte Physik, Universität Bonn, Wegelerstraße 8, 53115 Bonn, Germany
Trapped ions are a versatile platform, which is well suited for probing thermodynamics down to a single atom [1]. We have indentified non-linear dynamics that results in a Duffing-type resonance that can be used to improve sensing of very small forces [2]. Motivated by these results we present how the experimental setup has relevance in the context of resource theory and how the special features of the tapered ion trap can be exploited to implement a model system for heat transport [3].
[1] J. Roßnagel, S. T. Dawkins, K. N. Tolazzi, O. Abah, E. Lutz, F. Schmidt-Kaler, and K. Singer, A single-atom heat engine, Science 352, 325 (2016).
[2] B. Deng, M. Göb, B. A. Stickler, M. Masuhr, K. Singer, and D. Wang, Amplifying a zeptonewton force with a single-ion nonlinear oscillator, PRL 131, 153601 (2023).
[3] M. Lostaglio, An introductory review of the resource theory approach to thermodynamics, Rep. Prog. Phys. 82 114001 (2019).
Keywords: Trapped Ions; Quantum Thermodynamics; Non-linearity; Heat Transport; Resource Theory