Assessing the nature of chiral-induced spin-selectivity by magnetic resonance

TL;DR

This paper proposes magnetic resonance experiments using a qubit sensor to investigate the fundamental nature of chiral-induced spin selectivity (CISS) at the single-molecule level, aiming to clarify its mechanisms and potential applications.

Contribution

It introduces novel magnetic resonance experimental methods with a qubit sensor to directly detect CISS signatures and analyze electron transfer in chiral systems.

Findings

Proposes magnetic resonance experiments to detect CISS signatures.

Shows potential for time-resolved electron paramagnetic resonance in solutions.

Highlights implications for quantum computing applications.

Abstract

Understanding chiral induced spin-selectivity (CISS), resulting from charge transport through helical systems, has recently inspired many experimental and theoretical efforts, but is still object of intense debate. In order to assess the nature of CISS, we propose to focus on electron-transfer processes occurring at the single-molecule level. We design simple magnetic resonance experiments, exploiting a qubit as a highly sensitive and coherent magnetic sensor, to provide clear signatures of the acceptor polarization. Moreover, we show that information could even be obtained from time-resolved electron paramagnetic resonance experiments on a randomly-oriented solution of molecules. The proposed experiments will unveil the role of chiral linkers in electron-transfer and could also be exploited for quantum computing applications.