Dresden 2014 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
HL: Fachverband Halbleiterphysik
HL 79: Transport: Topological insulators II (organized by TT)
HL 79.5: Talk
Wednesday, April 2, 2014, 17:30–17:45, HSZ 204
Hanbury Brown-Twiss and Aharonov-Casher effects in a quantum spin Hall Corbino ring — •Anders Ström1, Henrik Johannesson2, and Patrik Recher1 — 1Institute for Mathematical Physics, TU Braunschweig, Germany — 2Department of Physics, University of Gothenburg, Sweden
We study the entanglement production in a quantum spin Hall ring where electrons of different spins are emitted from a biased source and detected in two different grounded detectors. The fermionic Hanbury-Brown Twiss effect gives rise to entanglement in the system, measurable via the current-current correlations between the detectors. The production of entanglement is electrically controlled via the Aharonov-Casher phases arising from the Rashba coupling in the system.