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QI: Fachverband Quanteninformation

QI 18: Poster II

QI 18.8: Poster

Wednesday, March 20, 2024, 11:00–14:30, Poster A

A model for energy conversion in photovoltaic systems from quantum resource theories of thermodynamics — •Nicolas Schubel, Giovanni Spaventa, Susana F. Huelga, and Martin B. Plenio — Institute of Theoretical Physics, Ulm University, Ulm, Germany

Quantum Resource Theories have proven themselves to be a useful tool to analyse problems from a information-theoretic perspective. Here this formalism gets used to analyse Shockley and Queisser's well known result on the efficiency of solar cells. A model will be presented which recovers this limit in the framework of the resource theory of athermality and which subsequently is expanded to hot carrier solar cells. To that end, the initial model will be broken down to its core components, thus rendering it suitable for a resource-theoretical analysis. The applied method excels at predicting bounds based on fundamental limitations, which will then be exploited in calculating the maximum efficiency over a family of possible density of states.

Keywords: Resource Theories; Athermality; Solar cells