Inelastic decay rate of quasiparticles in a two-dimensional spin-orbit coupled electron system

TL;DR

This paper investigates how spin-orbit interactions, including Rashba and Dresselhaus effects, influence the inelastic decay rate of quasiparticles in a two-dimensional electron gas using the G0W0 approximation.

Contribution

It provides a comprehensive analysis of the impact of general spin-orbit interactions on quasiparticle decay rates in 2D electron systems.

Findings

Spin-orbit interaction modifies quasiparticle decay rates.

Decay rates depend on the strength of Rashba and Dresselhaus interactions.

Theoretical predictions can guide experimental measurements.

Abstract

We present a study of the inelastic decay rate of quasiparticles in a two-dimensional electron gas with spin-orbit interaction. The study is done within the G0W0 approximation. The spin-orbit interaction is taken in the most general form that includes both Rashba and Dresselhaus contributions linear in magnitude of the electron 2D momentum. Spin-orbit interaction effect on the inelastic decay rate is examined at different parameters characterizing the interaction strength in the electron gas.