Dressed Spin of Polarized 3He in a Cell

TL;DR

This paper investigates how a dressing field affects the precession frequency of polarized 3He atoms in a cell, combining experimental measurements with quantum optics calculations to understand the phenomenon.

Contribution

It provides the first detailed experimental measurement of 3He precession frequency modification due to a dressing field and compares results with quantum optics models.

Findings

Precession frequency is significantly modified by the dressing field.

Experimental results agree with quantum optics calculations.

The effect spans a broad range of dressing field parameters.

Abstract

We report a measurement of the modification of the effective precession frequency of polarized 3He atoms in response to a dressing field in a room temperature cell. The 3He atoms were polarized using the metastability spin-exchange method. An oscillating dressing field is then applied perpendicular to the constant magnetic field. Modification of the 3He effective precession frequency was observed over a broad range of the amplitude and frequency of the dressing field. The observed effects are compared with calculations based on quantum optics formalism.