Two-photon coherent control of atomic collisions by light with entangled polarization

TL;DR

This paper introduces a novel method for controlling atomic collision outcomes using entangled polarization light, enabling selective channeling of collision fragments based on transition symmetry.

Contribution

It presents a new approach to coherently control atomic collisions through entangled polarization light, a technique not previously demonstrated.

Findings

Entangled polarization light can direct collision fragment channels.

Control over transition symmetry in atomic collisions is achieved.

The method enables selective internal transition outcomes.

Abstract

We describe a new method of coherent optical control of internal dynamics of atomic collisions by means of two correlated light beams having entangled polarizations. We show that if excitation of a colliding pair of atoms is by two photons having entangled polarizations, it is possible to redirect the output fragments of the collision into certain channels with a selected type of internal transition symmetry. The transition symmetry is defined in the body-fixed coordinate frame which has random and originally unknown orientation in space.