Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session J62: Excitons and Exciton Transport in Nanostructures
2:30 PM–5:30 PM,
Tuesday, March 3, 2020
Room: Mile High Ballroom 4C
Sponsoring
Unit:
DMP
Chair: Prashant Padmanabhan
Abstract: J62.00002 : Tunable polarons in a carbon nanotube electromechanical resonator
Presenter:
Sergio De Bonis
(ICFO-The Institute of Photonic Sciences)
Authors:
Sergio De Bonis
(ICFO-The Institute of Photonic Sciences)
Chandan Samanta
(ICFO-The Institute of Photonic Sciences)
Wei Yang
(ICFO-The Institute of Photonic Sciences)
Carles Urgell
(ICFO-The Institute of Photonic Sciences)
Biljana Stamenic
(ECE Department, UCSB)
Brian Thibeault
(ECE Department, UCSB)
Fabio Pistolesi
(CNRS, LOMA, Universite Bordeaux)
Adrian Bachtold
(ICFO-The Institute of Photonic Sciences)
interaction to an unprecedented level. The polaronic nature of charge carriers results in the reduction of the electrical conductance by up to about half its value. The electron-phonon interaction suppresses the resonance frequency of the fundamental phonon mode by up to 25%. Our device is in the so-called ultra-strong coupling regime, where the electromechanical coupling per phonon is one order of magnitude
larger than the resonance frequency. Our work establishes nanotube resonator as a possible platform for the demonstration of mechanical quantum bits and the study of quantum interference effects in the movement of an object consisting of 10^5–10^6 atoms.
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