Coupled 'electron interferometers': entanglement, dephasing, and phasing

Seminar
Colloquium
Speaker
Prof. Moty Heiblum, Braun Center for Submicron Research, Department of Condensed Matter Physics, Weizmann Institute
Date
14/05/2012 - 13:45Add to Calendar 2012-05-14 13:45:00 2012-05-14 13:45:00 Coupled 'electron interferometers': entanglement, dephasing, and phasing Experiments involving entangling of particles (or systems) may lead either to decoherence, or, alternatively, to coherent interference. I will present three examples of mesoscopic systems, which consist of a two-path electronic Mach-Zehnder interferometer (MZI) coupled to:  (a) 1-d current carrying channel, with shot noise; (b) Fabry-Perot interferometer in a form of a quantum dot (QD); and (c) Another MZI, revealing two-particle interference. In (a), 'post selection' measurement (cross-correlation' of current fluctuations), will recover the lost interference due to the dephasing process.   Physics Buld. 301 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Physics Buld. 301
Abstract

Experiments involving entangling of particles (or systems) may lead either to decoherence, or, alternatively, to coherent interference. I will present three examples of mesoscopic systems, which consist of a two-path electronic Mach-Zehnder interferometer (MZI) coupled to:  (a) 1-d current carrying channel, with shot noise; (b) Fabry-Perot interferometer in a form of a quantum dot (QD); and (c) Another MZI, revealing two-particle interference. In (a), 'post selection' measurement (cross-correlation' of current fluctuations), will recover the lost interference due to the dephasing process.

 

Last Updated Date : 05/12/2022