Quantum Sources of Light Based on Single Erbium Ions in a Trapped Nanocrystal

量子技术有望在计算和保证安全通信方面实现指数级的加速。这笔拨款将用于支持为未来量子技术创造单光子源的研究。与单光子探测器一样，单光子源是使用单光子、量子密码学和飞行量子比特进行量子计算的关键组成部分。单光子探测器是一种相对成熟的技术（市场上有几种产品），相比之下，单光子源仍然需要开发，并且有商业来源可以根据需要提供无法区分的单光子。理想情况下，这些光子应该在低损耗光纤带中产生。******为了满足这一需求，我们正在研究基于单铒离子单发射器的单光子源。该平台基于我的研究小组最近使用纳米孔径光学镊子在单个纳米晶体中分离出的单铒离子。在提议的项目中，我的小组将进行单光子测量，以证明单铒纳米晶体的单光子源能力。如果成功，这将通过提供第一种确定性方法来提供单光子铒发射器，从而影响该领域，该发射器高度稳定，并在低损耗光纤窗口中以所需的电信波长工作。

Quantum technologies promise exponential speed-up in computing and guaranteed secure communication. This grant will be used to support research on creating single photon sources for future quantum technologies. Along with single photon detectors, single photon sources are a key component of quantum computing using single photons, quantum cryptography, and flying quantum bits. Compared to single photon detectors that are a relatively mature technology (several products available in the market), single photon sources still need to be developed and there are commercial sources available that provide indistinguishable single photons on demand. Ideally, these photons should be generated in the low-loss optical fiber band. ******To address this need, we are investigating single photon sources based on single Erbium ion single emitters. The patform is based on single Erbium ions that my research group has recently isolated in individual nanocrystals by using nanoaperture optical tweezers. In the proposed project, my group will perform single photon measurements to demonstrate single photon source capability of the single-Erbium containing nanocrystals. If successful, this will impact the field by providing the first deterministic way to provide single photon Erbium emitters, that are highly stable and operate at the desired telecommunication wavelength in the low-loss fiber optic window.