A high-resolution molecular spin-photon interface at telecommunication wavelengths.

Authors

Leah R Weiss, Grant T Smith, Ryan A Murphy, Bahman Golesorkhi, José A Méndez Méndez, Priya Patel, Jens Niklas, Oleg G Poluektov, Jeffrey R Long, David D Awschalom

Published in

Science (New York, N.Y.). Volume 390. Issue 6768. Pages 76-81. Oct 02, 2025. Epub Oct 02, 2025.

Abstract

Optically addressable electronic spins in polyatomic molecules are a promising platform for quantum information science, with the potential to enable scalable qubit design and integration through atomistic tunability and nanoscale localization. However, optical state- and site-selection are an open challenge. In this work, we introduce an organo-erbium spin qubit in which narrow (megahertz-scale) optical and spin transitions couple to provide high-resolution access to spin degrees of freedom with telecommunication-frequency light. This spin-photon interface enables demonstration of optical spin polarization and readout that distinguishes between spin states and magnetically inequivalent sites in a molecular crystal. Operation at frequencies compatible with mature photonic and microwave devices provides an opportunity for engineering scalable, integrated molecular spin-optical quantum technologies.

PMID:
41037612
Bibliographic data and abstract were imported from PubMed on 03 Oct 2025.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.