Local magnetic resonance of scalar spin chirality

Abstract:Quantum states with finite scalar spin chirality carry an orbital magnetic moment that has so far eluded direct measurement. We show that, whereas uniform electron spin resonance preserves chirality, a local drive breaks the cyclic symmetry and activates chirality-changing transitions, providing direct access to the chiral orbital magnetic moment. Lindblad simulations demonstrate experimentally accessible signatures in platforms with local spin addressability, including electron spin resonance with a scanning tunneling microscope, donor spins in silicon, and quantum-dot spin qubits.

Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Quantum Physics (quant-ph)

arXiv:2608.17040 [cond-mat.mes-hall]

(or arXiv:2608.17040v1 [cond-mat.mes-hall] for this version)

https://doi.org/10.48550/arXiv.2608.17040 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.