Entanglement production in chaotic quantum dots subject to spin-orbit coupling

TL;DR

This paper investigates how spin-orbit coupling influences entanglement generation in chaotic quantum dots, revealing universal features and symmetry-dependent effects that resemble quantum interference corrections.

Contribution

It uncovers the role of spin-orbit coupling in entanglement production and identifies symmetry-related signatures previously unnoticed in such systems.

Findings

Entanglement strongly depends on spin-orbit coupling.

Signatures of time-reversal symmetry correlations are identified.

Universal features emerge for broken symmetries.

Abstract

We study numerically the production of orbital and spin entangled states in chaotic quantum dots for non-interacting electrons. The introduction of spin-orbit coupling permit us to identify signatures of time-reversal symmetry correlations in the entanglement production previously unnoticed, resembling weak-(anti)localization quantum corrections to the conductance. We find the entanglement to be strongly dependent on spin-orbit coupling, showing universal features for broken time-reversal and spin-rotation symmetries.