# Dipolar polaritons squeezed at unitarity

## TL;DR

This paper explores how tuning dipolar polaritons via shape resonance can produce strongly interacting, squeezed polariton populations, offering new insights for quantum photonics applications.

## Contribution

It derives an analytical expression for the polariton coupling constant, revealing conditions for large interactions in experimental settings.

## Key findings

- Large polariton coupling constants are achievable experimentally.
- Squeezed polariton populations can persist on the repulsive side of the resonance.
- Provides a new theoretical approach for enhancing interactions in quantum photonics.

## Abstract

Interaction of dipolar polaritons can be efficiently tuned by means of a shape resonance in their excitonic component. Provided the resonance width is large, a squeezed population of strongly interacting polaritons may persist on the repulsive side of the resonance. We derive an analytical expression for the polariton coupling constant and show that it may have very large values in typical experimental conditions. Our arguments provide a new direction for the quest of interactions in quantum photonics.