# Electromagnetically Induced Transparency with Superradiant and Subradiant states

## TL;DR

This paper proposes a novel method to achieve electromagnetically induced transparency by coupling superradiant and subradiant states, enabling precise subwavelength measurements and applications in nuclear quantum optics.

## Contribution

It introduces a dynamic coupling scheme between superradiant and subradiant states for EIT, expanding its potential applications in metrology and quantum optics.

## Key findings

- EIT spectra can measure atomic distance with high precision.
- The scheme reveals transparency points influenced by counter-rotating wave terms.
- Applicable to many-atom systems in nuclear quantum optics.

## Abstract

We construct the electromagnetically induced transparency (EIT) by dynamically coupling a superradiant state with a subradiant state. The superradiant and subradiant states with enhanced and inhibited decay rates act as the excited and metastable states in EIT, respectively. Their energy difference determined by the distance between the atoms can be measured by the EIT spectra, which renders this method useful in subwavelength metrology. The scheme can also be applied to many atoms in nuclear quantum optics, where the transparency point due to counter-rotating wave terms can be observed.