Stability of long-sustained oscillations induced by electron tunneling
Journal article, 2024
Self-oscillations are the result of an efficient mechanism generating periodic motion from a constant power source. In quantum devices, these oscillations may arise due to the interaction between single electron dynamics and mechanical motion. We show that, due to the complexity of this mechanism, these self-oscillations may irrupt, vanish, or exhibit a bistable behavior causing hysteresis cycles. We observe these hysteresis cycles and characterize the stability of different regimes in both single- and double-quantum-dot configurations. In particular cases, we find these oscillations stable for over 20 s, many orders of magnitude above electronic and mechanical characteristic timescales, revealing the robustness of the mechanism at play.
Author
Jorge Tabanera-Bravo
Complutense University
Florian Vigneau
University of Oxford
Juliette Monsel
Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics
Kushagra Aggarwal
University of Oxford
Léa Bresque
Grenoble Alpes University
Federico Fedele
University of Oxford
Federico Cerisola
University of Exeter
University of Oxford
G. A.D. Briggs
University of Oxford
Janet Anders
University of Exeter
University of Potsdam
Alexia Auffèves
Centre for Quantum Technologies
MajuLab
Juan M.R. Parrondo
Complutense University
Natalia Ares
University of Oxford
Physical Review Research
26431564 (ISSN)
Vol. 6 1 013291Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
Condensed Matter Physics
DOI
10.1103/PhysRevResearch.6.013291