Integrated Sources of Entangled and Indistinguishable Photons

纠缠和不可区分光子的集成源

• 批准号: 263348684
• 负责人: Professor Dr. Stephan Reitzenstein
• 金额: --
• 依托单位: Institut für Festkörperphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/263348684?language=en
• 关键词: Integrated; Sources; Entangled; Indistinguishable; Photons

The transformative nature of quantum optics and quantum information processing research has already changed the way we think about nature and its relation to information. Moreover, devices for secure communications have been commercialized based on the laws of quantum physics. Many of the most spectacular developments in the field have to do with quantum states of light.This project will take the production of these states to the next level in terms of miniaturization and integration and aims at an in-depth understanding of the underlying physical processes. In a III-V semiconductor system we will develop and study a quantum optics platform of nonlinear optical elements, single quantum emitters and other waveguide optical elements. We will take advantage of the fact that resonantly excited quantum dots can emit very clean single photons where subsequent photons are indistinguishable from each other, which is crucial for any use in multi-photon protocols, for example in quantum repeaters. Moreover, we will utilize Bragg-reflection waveguides to facilitate efficient nonlinear conversion of light. The desired process is spontaneous parametric down-conversion, which converts a shorter wavelength pump photon to an entangled pair of photons in the telecommunications wavelength band. Within an on-chip approach we will study and optimize the generation of single and entangled photon pairs by resonantly coupling the output of electrically pumped whispering gallery mode micro-lasers to single quantum dots embedded in adjacent micropillar cavities and Bragg-reflection waveguides. While all of these structures and building blocks have been realized before, no one has achieved the level of integration that we are targeting. Besides technological challenges, there exist a number of exciting physical questions such as an in-depth understanding of the non-linear processes involved in the generation of entangled photon pairs which will be tackled by our project.Our work will set the ground for a quantum optics platform that could revolutionize the way we conduct quantum optics experiments and may in the long run become a new quantum technology.

量子光学和量子信息处理研究的变革性质已经改变了我们思考自然及其与信息关系的方式。此外，基于量子物理定律的安全通信设备已经商业化。该领域许多最引人注目的发展都与光的量子态有关。该项目将在小型化和集成方面将这些状态的产生提升到一个新的水平，旨在深入了解底层的物理过程。在III-V半导体系统中，我们将开发和研究非线性光学元件、单量子发射器和其他波导光学元件的量子光学平台。我们将利用这样一个事实，即共振激发的量子点可以发射非常干净的单光子，其中后续的光子彼此无法区分，这对于多光子协议中的任何使用（例如在量子中继器中）至关重要。此外，我们将利用布拉格反射波导来促进光的高效非线性转换。所需的过程是自发参数下转换，它将较短波长的泵浦光子转换为电信波长带中的一对纠缠光子。在片上方法中，我们将通过将电泵回音壁模式微型激光器的输出谐振耦合到嵌入相邻微柱腔和布拉格反射波导中的单个量子点来研究和优化单个光子对和纠缠光子对的生成。虽然所有这些结构和构建模块以前都已实现，但没有人达到我们目标的集成水平。除了技术挑战之外，还存在许多令人兴奋的物理问题，例如对纠缠光子对生成所涉及的非线性过程的深入理解，这些问题将由我们的项目解决。我们的工作将为量子光学平台奠定基础，该平台可以彻底改变我们进行量子光学实验的方式，并可能从长远来看成为一种新的量子技术。

项目成果

An electrically driven cavity-enhanced source of indistinguishable photons with 61% overall efficiency

• DOI: 10.1063/1.4939831
• 发表时间: 2016-04-01
• 期刊: APL PHOTONICS
• 影响因子: 5.6
• 作者: Schlehahn, A.;Thoma, A.;Reitzenstein, S.
• 通讯作者: Reitzenstein, S.

A Pulsed Nonclassical Light Source Driven by an Integrated Electrically Triggered Quantum Dot Microlaser

• DOI: 10.1109/jstqe.2015.2418219
• 发表时间: 2015-03
• 期刊: IEEE Journal of Selected Topics in Quantum Electronics
• 影响因子: 4.9
• 作者: Pierce Munnelly;T. Heindel;M. Karow;S. Hofling;M. Kamp;C. Schneider;S. Reitzenstein

On-chip optoelectronic feedback in a micropillar laser-detector assembly

• DOI: 10.1364/optica.4.000303
• 发表时间: 2017-03
• 作者: Pierce Munnelly;B. Lingnau;M. Karow;T. Heindel;M. Kamp;S. Höfling;K. Lüdge;C. Schneider;S. Reitzenstein

Photon-number parity of heralded single photons from a Bragg-reflection waveguide reconstructed loss-tolerantly via moment generating function

来自布拉格反射波导的预示单光子的光子数奇偶性通过矩生成函数进行无损重建

• DOI: 10.1088/1367-2630/ab42ae
• 发表时间: 2019
• 期刊: New Journal of Physics
• 影响因子: 3.3
• 作者: K. Laiho;M. Schmidt;H. Suchomel;M. Kamp;S. Höfling;C. Schneider;J. Beyer;G. Weihs;S. Reitzenstein
• 通讯作者: S. Reitzenstein

Electrically Tunable Single-Photon Source Triggered by a Monolithically Integrated Quantum Dot Microlaser

• DOI: 10.1021/acsphotonics.7b00119
• 发表时间: 2017-04-01
• 期刊: ACS PHOTONICS
• 影响因子: 7
• 作者: Munnelly, Pierce;Heindel, Tobias;Reitzenstein, Stephan
• 通讯作者: Reitzenstein, Stephan