Dynamical backaction cooling with free electrons - Université Claude Bernard Lyon 1 Access content directly
Journal Articles Nature Communications Year : 2015

Dynamical backaction cooling with free electrons

Abstract

The ability to cool single ions, atomic ensembles, and more recently macroscopic degrees of freedom down to the quantum ground state has generated considerable progress and perspectives in fundamental and technological science. These major advances have been essentially obtained by coupling mechanical motion to a resonant electromagnetic degree of freedom in what is generally known as laser cooling. Here, we experimentally demonstrate the first self-induced coherent cooling mechanism that is not mediated by an electromagnetic resonance. Using a focused electron beam, we report a 50-fold reduction of the motional temperature of a nanowire. Our result primarily relies on the sub-nanometre confinement of the electron beam and generalizes to any delayed and spatially confined interaction, with important consequences for near-field microscopy and fundamental nanoscale dissipation mechanisms.
Fichier principal
Vignette du fichier
ncomms9104.pdf (2.17 Mo) Télécharger le fichier
Origin : Publication funded by an institution

Dates and versions

hal-02307277 , version 1 (03-02-2021)

Licence

Attribution

Identifiers

Cite

A. Nigues, A. Siria, Pierre Verlot. Dynamical backaction cooling with free electrons. Nature Communications, 2015, 6, pp.8104. ⟨10.1038/ncomms9104⟩. ⟨hal-02307277⟩
27 View
32 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More