Coherence and Entanglement in Two-Qubit Dynamics: Interplay of the Induced Exchange Interaction and Quantum Noise due to Thermal Bosonic Environment

TL;DR

This paper reviews how a bosonic environment influences two-qubit systems, focusing on the induced exchange interaction and quantum noise, with new calculations for P-donor-electron spins in Si-Ge materials.

Contribution

It provides a comparative analysis of exchange interaction and quantum noise effects, including new calculations for specific spin systems in Si-Ge materials.

Findings

Analysis of the interplay between exchange interaction and quantum noise.

New calculations for P-donor-electron spins in Si-Ge materials.

Discussion of challenges and open problems in the field.

Abstract

We present a review of our recent results for the comparative evaluation of the induced exchange interaction and quantum noise mediated by the bosonic environment in two-qubit systems. We report new calculations for P-donor-electron spins in Si-Ge type materials. Challenges and open problems are discussed.