PD Dr. Stefan Ludwig
Senior Scientist
Core research areas
Expertise
Nanophysics and Quantum Transport
Lecture series, Freie Universität, Berlin
Description: On the nanometer scale many materials exhibit size-dependent electronic, optical, magnetic and mechanical properties, which are governed by quantum mechanical effects. In this lecture, we will explain the physical concepts of these exciting phenomena and discuss topical experiments. The lecture will cover the full range from fundamental basics to applications in quantum technology.
Start date: 19.10.2023
Practice Seminar, Freie Universität, Berlin
Description: The exercises will comprise the discussion of recent literature related to the concepts explained in the lecture "Nanophysics".
Start date: 26.10.2023
Publications
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- Title
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Current density distribution for the quantum Hall effect
- Author
- S. Sirt, S. Ludwig
- Source
- New J. Phys., 28, 053503 (2026)
- DOI:
- 10.1088/1367-2630/ae66a9 (PDI-ID: 3036)
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- Title
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Nature of current flow in the regime of the quantum Hall effect
- Author
- S. Sirt, M. Kamm, V.Y. Umansky, S. Ludwig
- Source
- New J. Phys., 27, 083507 (2025)
- DOI:
- 10.1088/1367-2630/adfc05 (PDI-ID: 3010)
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- Title
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Transition from edge- to bulk-currents in the quantum Hall regime
- Author
- S. Sirt, V.Y. Umansky, A. Siddiki, S. Ludwig
- Source
- Appl. Phys. Lett., 126, 243101 (2025)
- DOI:
- 10.1063/5.0275599 (PDI-ID: 2993)