millikelvin - microwave -photonic probestation

在明斯特大学物理研究所，混合量子器件被开发用于光子量子信息处理。对于成熟的量子通信技术，由量子光源和/或探测器组成的多功能发射器和接收器是关键部件。在这里，集成光子电路(IQPC)可以说是集成所需功能的最有前途的平台之一。此外，实际实现需要灵活的混合体系结构，既结合各个组件的独特优势，又避免个别组件的缺点。所要求的仪器是一个标准化的源和检测设备测试和开发系统，用于验证IQPC设备及其单个组件的性能。中心设备是一个配备了光纤端口和微波连接的光子探测器，设计和指定的工作温度为毫秒级。所需的仪器将用于不同相互连接的研究轨道。第一个轨道涉及微波域和光域之间的转换。这里，例如，微波表面声波脉冲通过动态调制集成量子发射器或单个光子电路元件来编程单光子态。微波域和光子域之间的反馈控制使可编程量子协议的实施和验证能够从源产生符合目的的输出状态。第二个轨道针对的是现代混合IQPC源设备，包括新兴类别的量子发射体，例如托管在现代2D半导体中的量子发射体。在这一高度探索性的轨道上，相干光学和自旋性质的研究以及器件的开发和优化同样是可能的。在第三个研究轨道中，该仪器作为使用超导单光子探测器的接收器的基准和验证平台。所要求的系统以完全模块化的方式设计，并允许直接采用新开发的标准化方法。为此，各个组件都配备了接口，以确保不同功能之间的互操作。因此，该设备可以重新配置，以满足未来的需求，例如集成不同波长波段的新兴量子光源，或创建从静止微波超导或自旋量子比特到飞行光子量子比特的双向量子传输方案。

At the Institute of Physics at University of Münster, hybrid quantum devices are developed for applications in photonic quantum information processing. For fully-fledged quantum communication technologies, versatile emitter and receiver devices comprising quantum light sources and / or detectors are key components. Here, integrated photonic circuits (IQPCs) are arguably one of the most promising platforms to integrate the required functionalities. Moreover, practical implementations demand flexible hybrid architectures which combine the unique strengths of individual components and at the same time avoid individual shortcomings.The requested instrument is a standardized test and development system for source and detection devices to validate the performance of IQPC devices and their individual components. The central apparatus is a photonic probestation equipped with optical fiber ports and microwave connections designed and specified for operation at millikelvin temperatures.The requested instrument will be used for different interconnected research tracks. The first track involves the transduction between the microwave and optical domains. Here for instance microwave surface acoustic wave pulses program single photon states by dynamically modulating integrated quantum emitters or individual photonic circuit elements. Feedbacked control between the microwave and photonic domains enable the implementation and validation of programmable quantum protocols to generate purpose-fit output states from sources. The second track targets modern hybrid IQPC source devices comprising emerging classes of quantum emitters involves for instance hosted in modern 2D semiconductors. In this highly exploratory track, the investigation of the coherent optical and spin properties and the development and optimization of the devices is equally possible. In the third research track, the instrument serves as a benchmarking and validation platform for receivers employing superconducting single photon detectors.The requested system is designed in a fully modular way and allows the straightforward adoption of newly developed standardized methodologies. To this end, individual components are equipped with interfaces to ensure interoperation between different functionalities. Thus, the apparatus can be reconfigured to meet future demands for instance to integrate emerging quantum light sources in different wavelength bands or create bidirectional quantum transduction schemes from stationary microwave superconducting or spin qubits to flying photonic qubits.