Coupling a single spin to the motion of a carbon nanotube
Artikel i vetenskaplig tidskrift, 2025
The ability to couple a solitary spin to high-frequency motion is a crucial advancement for a range of applications, including quantum sensing, intermediate and long-distance spin-spin coupling, and quantum information processing. Although proposed theoretically over a decade ago, experimental demonstrations have remained elusive. Here we report the observation of spin-mechanical coupling in a carbon nanotube device. We demonstrate this coupling in two configurations: off-resonant, with spin and mechanics excited by separate tones, and resonant, driven by a single tone. The coupling manifests as a shift and broadening of the electric dipole spin resonance (EDSR), respectively. Our theoretical model, which accounts for the tensor character of the coupling and mechanical non-linearity, reproduces the data with very good agreement. Our results demonstrate a previously unobserved spin-mechanical coupling, offering versatile tools for exploring macroscopic quantum phenomena, quantum thermodynamics, and quantum simulation.
Författare
Federico Fedele
University of Oxford
Federico Cerisola
University of Exeter
University of Oxford
Léa Bresque
Université Grenoble Alpes
Florian Vigneau
University of Oxford
Juliette Monsel
Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik
Jorge Tabanera-Bravo
Universidad Complutense de Madrid
Kushagra Aggarwal
University of Oxford
Jonathan Dexter
University of Oxford
Sofia Sevitz
Universität Potsdam
Joe Dunlop
University of Exeter
Alexia Auffèves
Centre for Quantum Technologies (CQT)
Universiti Kebangsaan Singapura (NUS)
Juan M.R. Parrondo
Universidad Complutense de Madrid
András Pályi
Budapesti Muszaki es Gazdasagtudomanyi Egyetem
Janet Anders
University of Exeter
Universität Potsdam
Natalia Ares
University of Oxford
Nature Communications
2041-1723 (ISSN) 20411723 (eISSN)
Vol. 16 1 11454Värmeströmsfluktuationer och dens inverkan på lokala temperaturer och potentialer
Vetenskapsrådet (VR) (2018-05061), 2019-01-01 -- 2022-12-31.
Ämneskategorier (SSIF 2025)
Teoretisk kemi
Den kondenserade materiens fysik
Annan fysik
DOI
10.1038/s41467-025-66331-5
PubMed
41390666
Relaterade dataset
Supplementary data [dataset]
DOI: 10.5281/zenodo.17434941