The inherent fluctuations of the pulsed atom laser in F=2 manifold of 87Rb atoms

TL;DR

This paper investigates the intrinsic fluctuations in the pulsed atom laser of 87Rb atoms in the F=2 state, highlighting how atom loss and pulse interference contribute to output variability.

Contribution

It provides a theoretical explanation for the inherent fluctuations in pulsed atom lasers due to atom loss and pulse interference effects.

Findings

Observed intensity fluctuations at low output coupling rate

Identified atom loss as a source of fluctuations

Highlighted interference of output pulses as a fluctuation factor

Abstract

We have observed the intensity fluctuations of the F=2 87Rb atom laser at low output coupling rate. Theoretically, we find that the atom loss of the condensate due to the output of atom laser leads to fluctuations of the laser pulses, which is inherent in all state changing out-coupling such as rf and Raman. Another reason leading to large fluctuations is the interference of output pulses.