Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session S65: Superlattices and Nanostructures II: Transport and Electronic Phenomena
11:15 AM–1:27 PM,
Thursday, March 5, 2020
Room: Mile High Ballroom 4F
Sponsoring
Unit:
DCMP
Chair: Simone Assali, Ecole Polytechnique de Montreal
Abstract: S65.00006 : Incoherent Effects in Hot-Electron Quantum Optics*
View Presentation Abstract
Presenter:
Clarissa Barratt
(Univ of Newcastle)
Authors:
Clarissa Barratt
(Univ of Newcastle)
Lewis Clark
(Univ of Newcastle)
Clive Emary
(Univ of Newcastle)
In this contribution, we discuss coupling single-electron sources into interferometer geometries, such as the Mach-Zehnder interferometer, where the visibility of the quantum interference acts as a sensitive probe of the properties both of the emitted electrons and their environment. We investigate the effect of the uncertainty in injection energy on the phase contributions of the path lengths and quantum point contacts.
We also present theoretical calculations of the decay rate of a hot electron subject to phonon scattering, and determine how these rates are affected by parameters such as the electron injection energy and the magnetic field. Using our calculations for both phase averaging and phonon rates, we derive strategies for minimising the effects of these processes, thus maximising the quantum-coherent properties of the electrons.
*This research was supported by EPSRC Grant EP/P034012/1
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