Organic Rare-Earth Single Photon Sources for Quantum Information Technology

量子信息技术（QITs）将对我们的计算、通信和信息安全方法产生革命性的变化。将量子技术集成到可扩展平台上，以制造量子集成电路的能力是圣杯，目前光子方法看起来非常有前途，因为它们可以在室温下操作并利用现代光子集成电路（PIC）技术。然而，所有量子信息技术的光子方法都需要外部单光子源，目前依赖于光子的参数下转换；这是昂贵的，笨重的，需要精确的光纤耦合到PIC，并且极大地限制了可以实现的复杂性。本提案旨在展示一种超低功耗单光子发射器（SPE）源，该源可以直接集成到光子集成电路（pic）中，并且可以电泵浦。这是一项变革性的技术，可以将许多spe直接集成到pic上的波导中，从而产生可在室温下工作的可扩展量子处理器。

Quantum information technologies (QITs) will produce a revolutionary change in our approach to computation, communication, and information security. The ability to integrate quantum technology onto a scalable platform, to make a quantum integrated circuit, is the holy-grail, and currently photonic approaches look highly promising as they can operate at room temperature and utilise modern photonic integrated circuit (PIC) technologies. However, all photonic approaches to QIT require external single photon sources, which currently rely on parametric down-conversion of photons; this is expensive, bulky, requires precise optical fibre coupling to the PIC, and hugely limits the complexity that can be achieved. This proposal seeks to demonstrate an ultra-low power single photon emitter (SPE) source that can be directly integrated into photonic integrated circuits (PICs) and which can be electrically pumped. This is a transformative technology that will allow for the integration of numerous SPEs directly into waveguides on PICs and hence lead to scalable quantum processors that operate at room temperature.