Entangled quantum microwaves:continuous variables for remote state preparation and quantum illumination

纠缠量子微波：用于远程状态制备和量子照明的连续变量

基本信息

批准号：
275168737
负责人：
Dr. Kirill Fedorov
金额：
--
依托单位：
Walther-Meißner-Institut für Tieftemperaturforschung
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2015
资助国家：
德国
起止时间：
2014-12-31 至 2016-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/275168737?language=en
关键词：
Entangled quantum microwaves continuous variables

项目摘要

The field of solid-state quantum information processing rapidly developed during the last decade. In particular, superconducting circuits demonstrated outstanding properties and serve as a platform for all kinds of quantum experiments in the microwave regime. The microwave domain offers exceptional advantages for quantum simulation, quantum communication, and quantum sensing. Due to recent technical and fundamental achievements it is possible now to move towards quantum information processing with propagating quantum photons in the form of squeezed microwaves. We propose experiments with entangled quantum microwaves towards remote state preparation (RSP) and quantum teleportation. We want to employ squeezed microwaves as continuous-variable states for RSP. These states are typically generated by Josephson parametric amplifiers (JPA) implemented by superconducting circuit technology. We plan to study general aspects of RSP physics, such as correlation times of two-mode squeezed states, or displacement operations with squeezed states, and apply them to particular problems such as quantum teleportation with continuous variables in the microwave domain and quantum illumination experiments. Quantum teleportation is one the cornerstones of quantum communication and allows one to safely transmit an unknown quantum state. The quantum illumination idea was proposed recently as a particular application of entangled photon states for sensing of low reflectivity objects. It claims that it is possible to achieve a signal enhancement up to the factor of 4 in power with entangled photons states over classical ones.

在过去十年中，固态量子信息处理的领域迅速发展。特别是，超导电路表现出出色的特性，并作为微波制度中各种量子实验的平台。微波域为量子模拟，量子通信和量子传感提供了出色的优势。由于最近的技术和基本成就，现在有可能以挤压微波的形式以传播量子光子的形式朝着量子信息处理。我们提出了纠缠量子微波炉的实验，用于远程状态制备（RSP）和量子传送。我们希望使用挤压的微波作为RSP的连续变量状态。这些状态通常由超导电路技术实现的约瑟夫森参数放大器（JPA）生成。我们计划研究RSP物理学的一般方面，例如两种模式挤压状态的相关时间，或与挤压状态的位移操作，并将其应用于特定问题，例如在微波域和量子照明实验中使用连续变量的量子传送。量子传送是量子通信的基石之一，可以安全地传输未知的量子状态。量子照明想法最近是作为纠缠光子状态的特定应用，用于感应低反射率对象。它声称，有可能在经典光子状态下实现纠缠光子状态的功率4的信号增强。