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SAMOP 2023 – scientific programme

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QI: Fachverband Quanteninformation

QI 10: Quantum Thermodynamics and Open Quantum Systems I

QI 10.6: Talk

Tuesday, March 7, 2023, 12:30–12:45, B302

A Trapped Ion Anharmonic Oscillator — •Bo Deng, Moritz Göb, Max Masuhr, Daqing Wang, and Kilian Singer — Experimentalphysik I, Universität Kassel, Heinrich Plett Str. 40, 34132 Kassel, Germany

In a tapered trap used for the realization of a single ion heat engine, the coupling of radial and axial modes implements an anharmonic mechanical oscillator. In this talk, we show that this coupling can be approximately described by the radiation-pressure Hamiltonian in the context of optomechanics. We further characterize the nonlinearity of this oscillator and the resulting mechanical bi-stability. Finally, we will discuss possible applications for thermal machines in the quantum regime.

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