Bright solitons in non-equilibrium coherent quantum matter

TL;DR

This paper presents a theoretical mechanism for generating bright solitons in non-equilibrium spinor Bose-Einstein condensates, supported by analytical expressions and numerical analysis of their dynamics and interactions.

Contribution

It introduces analytical formulas for bright solitons in non-equilibrium condensates and explores their complex dynamics and interactions.

Findings

Analytical expressions for bright (half) solitons in non-equilibrium systems

Numerical analysis reveals rich soliton dynamics and instabilities

Insights into inter- and intra-competition effects in non-equilibrium condensates

Abstract

We theoretically demonstrate a mechanism for bright soliton generation in spinor non-equilibrium Bose-Einstein condensates made of atoms or quasiparticles such as polaritons in semiconductor microcavities. We give analytical expressions for bright (half) solitons as minimizing functions of a generalized non-conservative Lagrangian elucidating the unique features of inter and intra-competition in non-equilibrium systems. The analytical results are supported by a detailed numerical analysis that further shows the rich soliton dynamics inferred by their instability and mutual cross-interactions.