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TT: Fachverband Tiefe Temperaturen

TT 12: Fluctuations and Noise

TT 12.2: Talk

Monday, March 18, 2024, 15:15–15:30, H 3007

Noise calculations for transport through quantum dot systems and applications in charge sensing and nano thermodynamics — •Simon Wozny and Martin Leijnse — Division of Solid State Physics and NanoLund, Lund University, Box 118, S-22100 Lund, Sweden

Using full counting statistics we calculate the current and current noise through quantum dot (QD) systems. With this general framework making use of master equations we can investigate many different systems including electron-electron interactions and focus on different aspects. We have, for example, investigated the use of a parallel double QD as a charge sensor and show that it can outperform a single-dot charge sensor. We also explore the connection between the current noise and other thermodynamic quantities. Here relevant relations are for example fluctuation dissipation bounds or thermodynamic uncertainty relations.

Keywords: master equations; transport theory; counting statistics; fluctuations; quantum dots