Scheme of 2-dimensional atom localization for a three-level atom via quantum coherence

TL;DR

This paper proposes a method for 2D atom localization in a three-level system using quantum coherence and standing wave fields, achieving high-precision localization by tuning control parameters.

Contribution

It introduces a novel scheme for 2D atom localization leveraging quantum coherence and phase control in a three-level atomic system.

Findings

Localization probability can reach near unity.

Phase and detuning significantly influence localization.

Atomic coherence enhances sub-wavelength localization.

Abstract

We present a scheme for two-dimensional (2D) atom localization in a three-level atomic system. The scheme is based on quantum coherence via classical standing wave fields between the two excited levels. Our results show that conditional position probability is significantly phase dependent of the applied field and frequency detuning of spontaneously emitted photons. We obtain a single localization peak having probability close to unity by manipulating the control parameters. The effect of atomic level coherence on the sub-wavelength localization has also been studied. Our scheme may be helpful in systems involving atom-field interaction.