Modeling and Deciphering on Two Spin-polariton Entanglement Experiments in NV Centers of Diamond

TL;DR

This paper provides a theoretical analysis of spin-polariton entanglement in NV centers in diamond, explaining experimental results through a Jaynes-Cummings model and quantum optics techniques.

Contribution

It introduces a comprehensive theoretical framework that explains experimental observations of spin-polariton entanglement in NV centers using advanced quantum optical models.

Findings

Consistent explanation of Faraday and Stark effects in NV centers

Model accurately reproduces experimental entanglement phenomena

Provides insights into energy level engineering for entanglement

Abstract

This work is a theoretical investigation on the spin-polariton (polarized single photon) entanglement in nitrogen vacancy (NV) centers in diamond in order to interpret the results of two landmark experiments reported by the teams of Buckley and Togan in Science and Nature. A Jaynes-Cummings model is applied to analyze the off- and on-resonant dynamics of the electronic spin and polarized photon system. Combined with the analysis on the NV center's electron structure and transition rules, this model consistently explained the Faraday effect, Optical Stark effect, pulse echo technology and energy level engineering technology in the way to realize the spin-polariton entanglement in diamond. All theoretical results are consistent well with the reported phenomena and data. This essay essentially aims at applying the fundamental skills the author has learned in Quantum Optics and Nonlinear Optics, especially to the interesting materials not covered in class, in assignments and examinations, such as calculation on matrix form of Hamiltonian, quantum optical dynamics with dressed state analysis, entanglement and so on.