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QI: Fachverband Quanteninformation

QI 29: Quantum Thermodynamics and Open Quantum Systems II

QI 29.6: Vortrag

Donnerstag, 9. März 2023, 15:45–16:00, B302

A Rydberg ion quantum engine — •Wilson Martins¹, Igor Lesanovsky^1,2, and Federico Carollo¹ — ¹Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076Tübingen, Germany — ²School of Physics and Astronomy and Centre for the Mathematics and Theoretical Physics of Quantum Non-Equilibrium Systems, The University of Nottingham, Nottingham,NG7 2RD, United Kingdom

We present and analyse a protocol for operating a quantum engine. Our engine is based on trapped laser-driven Rydberg ions, which constitute a quantum simulation platform where internal and external degrees of freedom can be controlled precisely. Our engine operates under out-of-equilibrium conditions in a setting where external laser-driving competes with dissipation and coherent interaction. We show that for a system of two trapped ions extractable work can be stored in the relative external motion of the trapped ions. We explore a driving protocol and quantify the stored work via the so-called ergotropy: the maximum amount of work that can be obtained from a quantum system.