Berlin 2015 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 66: Superconductivity: Tunneling, Josephson Junctions, SQUIDs
TT 66.5: Vortrag
Mittwoch, 18. März 2015, 16:00–16:15, H 2053
The parity effect in a Jospehson junction array — Jared Cole1, Andreas Heimes2, and •Michael Marthaler2 — 1Chemical and Quantum Physics, School of Applied Sciences, RMIT University, Melbourne, Victoria 3001, Australia — 2Institut für Theoretische Festkörperphysik, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany
We study transport in a Josephson junction array for small Josephson energies. For very small Josephson energy the transport is dominated by single quasiparticle tunneling. We consider a regime where there is enough energy to inject quasiparticles by breaking a cooper-pair, but transport inside of the array is dominated by the parity effect. This means that the current is caried by a small number of quasiparticles above the gap. We observer the crossover temperature T*, which is also known from parity experiments in superconducting single electron transistors.