Atom interferometry based on light pulses : application to the high precision measurement of the ratio h/m and the determination of the fine structure constant

TL;DR

This paper reviews atom interferometry using light pulses, emphasizing high-precision measurement techniques for the ratio h/m and the fine structure constant, combining Bloch oscillations with Ramsey-Bordé interferometry.

Contribution

It introduces a method combining Bloch oscillations and Ramsey-Bordé interferometry for precise measurement of h/m and the fine structure constant.

Findings

Demonstrated high-precision measurement of h/m

Combined Bloch oscillations with Ramsey-Bordé interferometry

Provided insights into applications for fundamental constant determination

Abstract

In this paper we present a short overview of atom interferometry based on light pulses. We discuss different implementations and their applications for high precision measurements. We will focus on the determination of the ratio h/m of the Planck constant to an atomic mass. The measurement of this quantity is performed by combining Bloch oscillations of atoms in a moving optical lattice with a Ramsey-Bord\'e interferometer.