# Artificial Life in an Exciton-Polariton Lattice

## TL;DR

This paper theoretically demonstrates that an exciton-polariton lattice can emulate life-like cellular automata, supporting diverse stable and dynamic structures capable of universal computation despite dissipation.

## Contribution

It introduces a novel mechanism for realizing complex spatiotemporal structures in exciton-polariton lattices using combined continuous and pulsed excitation.

## Key findings

- Supports stable discrete and oscillating solitons
- Enables chaotic and breathers dynamics
- Facilitates universal computation in polariton systems

## Abstract

We show theoretically that a lattice of exciton-polaritons can behave as a life-like cellular automaton when simultaneously excited by a continuous wave coherent field and a time-periodic sequence of non-resonant pulses. This provides a mechanism of realizing a range of highly sought spatiotemporal structures under the same conditions, including: discrete solitons, oscillating solitons, rotating solitons, breathers, soliton trains, guns, and choatic behaviour. These structures can survive in the system indefinitely, despite the presence of dissipation, and allow universal computation.