Resonant superradiant backward-scattering as a source for many-particle entanglement

TL;DR

This paper explores resonant superradiant backward-scattering in Bose-Einstein condensates, demonstrating control over atom pair production and strong correlations, which could enable many-particle entanglement.

Contribution

It introduces a method to extend control over superradiant scattering using two-frequency driving, enabling precise manipulation of atom pairs and their correlations.

Findings

Extended pulse duration and intensity range by two orders of magnitude.

Achieved full control over scattered atom numbers in both directions.

Demonstrated strong correlations indicative of potential entanglement.

Abstract

We investigate the atom pair production by superradiant backward-scattering from a Bose-Einstein condensate. By driving the superradiant process with two frequencies we can extend both the range of pulse duration and intensity by two orders of magnitude and obtain full control over the number of scattered atoms in forward and backward direction. We show that the atoms scattered in forward direction are strongly correlated with the atoms scattered in backward direction, which makes resonant superradiant backward-scattering a promising candidate for many-particle entanglement.