Project Paradoxe Antwort- und Fluktuationseffekte in Josephson-Kontakten

Basic data

Title:
Paradoxe Antwort- und Fluktuationseffekte in Josephson-Kontakten
Duration:
19/10/2006 to 08/08/2011
Abstract / short description:
In this project two different, quite unusual pheomena in Josephson junctions are investigated theoretically and experimentally: 1. Absolute negative resistance, i.e. the system generates a negative voltage as a response to a positive applied electric current and vice versa. 2. A reduction in temperature causes an increase of the quantum mechanical tunneling rate in appropriately arranged Josephson junctions, and hence of the electric voltage drop across a system biased at constant current. The project is performed in close collaboration between the groups in theoretical physics (P. Reimann and R. Eichhorn, Bielefeld) and in experimental physics (D. Kölle and R. Kleiner, Tübingen). We implement theoretical predictions experimentally by using Josephson junctions. Furthermore, novel experimental results in such systems are analyzed theoretically.
Annotation:
Joint project with P. Reimann, R. Eichhorn (Univ. Bielefeld)
Keywords:
absolut negativer Widerstand
Josephson effect
Josephson-Effekt

Staff

Managers

Faculty of Science
University of Tübingen
Institute of Physics (PIT)
Department of Physics, Faculty of Science
Transregio 21 - Control of Quantum Correlations in Tailored Matter
Collaborative research centers and transregios
Center for Light Matter Interaction, Sensors & Analytics (LISA+)
Centers

Local organizational units

Institute of Physics (PIT)
Department of Physics
Faculty of Science

Funders

Bonn, Nordrhein-Westfalen, Germany
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