Scalable cavity quantum electrodynamics system for quantum computing

TL;DR

This paper presents a scalable cavity quantum electrodynamics platform using coupled photonic crystal cavities with Dirac cone modes, enabling quantum information storage and entanglement among multiple quantum dots for quantum computing.

Contribution

The paper introduces a novel scalable QED system with Dirac cone modes, facilitating quantum information processing with multiple entangled quantum dots.

Findings

Energy exchange between quantum dot and Dirac modes is sinusoidal.

Quantum dots become entangled with Dirac modes and each other.

System demonstrates potential for scalable quantum computing.

Abstract

We introduce a new scalable cavity quantum electrodynamics platform which can be used for quantum computing. This system is composed of coupled photonic crystal (PC) cavities which their modes lie on a Dirac cone in the whole super crystal band structure. Quantum information is stored in quantum dots that are positioned inside the cavities. We show if there is just one quantum dot in the system, energy as photon is exchanged between the quantum dot and the Dirac modes sinusoidally. Meanwhile the quantum dot becomes entangled with Dirac modes. If we insert more quantum dots into the system, they also become entangled with each other.