Fictitious Magnetic Resonance by Quasi-Electrostatic Field

TL;DR

This paper introduces a novel spin manipulation technique using a fictitious magnetic field generated by a quasi-electrostatic field, demonstrated experimentally with cold rubidium atoms and Bose-Einstein condensates, offering advantages like low photon scattering and local control.

Contribution

It presents a new method for spin control using a quasi-electrostatic field to create a fictitious magnetic field, applicable to all atoms with electron spins, with experimental validation.

Findings

Successful demonstration with cold rubidium atoms

Observation of Rabi oscillations in hyperfine states

Method shows low photon scattering and high local addressability

Abstract

We propose a new kind of spin manipulation method using a {\it fictitious} magnetic field generated by a quasi-electrostatic field. The method can be applicable to every atom with electron spins and has distinct advantages of small photon scattering rate and local addressability. By using a $\rm{CO_2}$ laser as a quasi-electrostatic field, we have experimentally demonstrated the proposed method by observing the Rabi-oscillation of the ground state hyperfine spin F=1 of the cold $\rm{^{87}Rb}$ atoms and the Bose-Einstein condensate.