Dissipation-induced correlations in 1D bosonic systems

TL;DR

This paper numerically investigates how dissipation can induce correlations in one-dimensional bosonic systems, revealing that two-particle loss can generate correlations that inhibit particle dissipation, with implications for quantum photonic systems.

Contribution

It demonstrates how dissipative two-particle interactions can induce correlations in 1D bosonic systems, using TEBD simulations relevant to stationary-light polaritons.

Findings

Two-particle loss induces correlations that inhibit dissipation.

Similar local correlations are generated by elastic repulsion and two-particle loss.

Differences are observed in non-local correlations between the two mechanisms.

Abstract

The quantum dynamics of interacting bosons in a one-dimensional system is investigated numerically. We consider dissipative and conservative two-particle interactions, and integrate the master equation describing the system dynamics via a time-evolving block-decimation (TEBD) algorithm. Our numerical simulations directly apply to stationary-light polaritons in systems where atoms and photons are confined to the hollow core of a photonic crystal fibre. We show that a two-particle loss term can drive an initially uncorrelated state into a regime where correlations effectively inhibit the dissipation of particles. The correlations induced by two-particle losses are compared with those generated by an elastic repulsion. For the considered time range, we find a similar behaviour in local density-density correlations but differences in non-local correlations.