Integrated single photon emitters

Abstract

The realization of scalable systems for quantum information processing and networking is of utmost importance to the quantum information community. However, building such systems is difficult because of challenges in achieving all the necessary functionalities on a unified platform while maintaining stringent performance requirements of the individual elements. A promising approach that addresses this challenge is based on the consolidation of experimental and theoretical capabilities in quantum physics and integrated photonics. Integrated quantum photonic devices allow efficient control and read-out of quantum information while being scalable and cost effective. Here, the authors review recent developments in solid-state single photon emitters coupled with various integrated photonic structures, which form a critical component of future scalable quantum devices. Their work contributes to the further development and realization of quantum networking protocols and quantum logic on a scalable and fabrication-friendly platform.

Integrated avalanche photodetectors for visible light

“…As APDs do not require cryogenic environments, unlike integrated superconducting photodetectors, they are advantageous for developing scalable systems for quantum information processing, such as the recently demonstrated 100-mode photonic quantum computer Jiuzhang 28 . Integrated visible-light APDs will enable the photonic integration of various quantum systems operating at visible wavelengths, such as trapped ions, color centers in diamond, quantum dots, and 2D materials 29 .…”

Chip-Scale Quantum Emitters

“…An AFM image of the directly grown few-layer hBN film on silicon nitride is shown in Figure 22e. New insights on the various metrics of performance across multiple platforms of SPEs were recently reviewed [83,84]. These reviews highlighted that the extraction of quantum light from 2D materials is highly efficient due to the atomic thickness of 2D materials and their surface dangling bond.…”

Effects of an External Magnetic Field on the Interband and Intraband Optical Properties of an Asymmetric Biconvex Lens-Shaped Quantum Dot

“…Nanoparticles or quantum dots attract the attention of researchers due to their wide range of possible applications. One of these applications is the development of single photon emitters that can be used for quantum cryptography, optical quantum computing, and the development of highly secure communication networks [ 1 ]. Embedding the quantum dots into multilayer metamaterials and multilayer grating nanostructures can significantly increase the efficiency of such emitters due to the Purcell effect [ 2 ].…”