Optical Control of a Quantum Rotor

TL;DR

This paper explores theoretical methods to coherently control a quantum rotor realized by a spin-1 Bose-Einstein condensate in an optical cavity, demonstrating state transformation and detection techniques.

Contribution

It introduces a novel approach to manipulate a quantum rotor using optical fields and proposes a protocol for generating and detecting squeezed states.

Findings

Coherent control over the quantum rotor is theoretically achievable.

A protocol for transforming the ground state into a squeezed state is demonstrated.

Detection via cavity field intensity-correlations is proposed.

Abstract

The possibility to coherently control a quantum rotor is investigated theoretically. The rotor is realized by an antiferromagnetic spin-1 Bose-Einstein condensate, trapped in the optical field of a Fabry-Perot resonator. By tuning the pumping field of the resonator, coherent control over the rotor is achieved. The technique is illustrated by the numerical simulation of a protocol that transforms the rotor's ground state into a squeezed state. The detection of the squeezed state via measurement of intensity-correlations of the cavity field is proposed.