Moty Heiblum

Title

Entangled Electrons in the Solid State: Quantum Interference and Dephasing

Abstract

I will describe two experiments, where pairs of electrons were entangled in a solid state Mach-Zehnder interferometer, leading to entirely different outcomes. In one experiment a 'which path' detector was entangled with an interferometer, leading to total dephasing of the interference. The lost interference was recovered by doing a 'post selection' type measurement; proving that phase information stayed in the system. In another experiment two remote, indistinguishable electrons were entangled without ever interacting with each other. Since they propagated along different paths, interference took place only due to the electrons' exchange statistics.