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CAREER: Engineering Interacting Photons in Superconducting-Circuit Lattices

职业：超导电路晶格中相互作用光子的工程

基本信息

批准号：
2047732
负责人：
Alicia Kollar
金额：
$ 67.5万
依托单位：
University of Maryland, College Park
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-06-15 至 2026-05-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2047732&HistoricalAwards=false
关键词：
CAREER Engineering Interacting Photons Superconducting

项目摘要

Photons are particles of light which exist all across the electromagnetic spectrum, from radio and microwaves to visible and ultra-violet light. By making use of superconductors, which carry current without generating heat when cooled to very low temperatures, it is possible to make microwave circuits where, unlike in most room-temperature devices, the photons live for very long times and stay confined in small regions in space. Since these photons stay put instead of flying away, they become more like conventional particles such as electrons, and the full might and diversity of microwave engineering can be used to control how they see and interact with the world. By controlling how these photons interact with each other and the world around them, this project will probe the fundamental building blocks of the materials around us and learn about how the environment in which a particle lives affects its properties. The project will also build upon the recently-initiated Virtual AMO Seminar, of which the PI is a board member, to develop an auxiliary small-group program series aimed at engaging non-physicists and undergraduate students in online research seminars in a meaningful way and facilitating communication in the ever-broadening quantum workforce.Among this project’s specific research goals is to harness arrays of superconducting microwave resonators to produce microwave metamaterials in which photon-photon interactions can be mediated by superconducting qubits. Building on previous theoretical work showing that these metamaterials can access unconventional band structures, such as lattices with gapped flat bands and also much more general mathematical objects such as tree-like and hyperbolic graphs, the PI will implement unconventional microwave lattices and incorporate qubits to mediate interactions. Investigation will begin with one-dimensional lattices and move toward higher-dimensional structures during the course of the project.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

光子是光的粒子，存在于电磁波谱中，从无线电和微波到可见光和紫外光。通过利用超导体，当冷却到非常低的温度时，超导体携带电流而不产生热量，可以制造微波电路，与大多数室温设备不同，光子可以存活很长时间，并被限制在空间的小区域内。由于这些光子停留在原地而不是飞走，它们变得更像电子等传统粒子，微波工程的全部力量和多样性可以用来控制它们如何看待世界和与世界互动。通过控制这些光子如何相互作用以及它们周围的世界，该项目将探索我们周围材料的基本组成部分，并了解粒子所处的环境如何影响其特性。该项目还将以最近发起的虚拟AMO研讨会为基础，其中PI是董事会成员，开发一个辅助小组计划系列，旨在以有意义的方式让非物理学家和本科生参与在线研究研讨会，并促进永远的沟通，该项目的具体研究目标之一是利用超导微波谐振器阵列来产生微波超材料，其中光子-光子相互作用可以由超导量子比特介导。基于先前的理论工作，这些超材料可以访问非常规的能带结构，例如具有带隙平坦带的晶格以及更一般的数学对象，例如树状图和双曲图，PI将实现非常规的微波晶格，并将量子位用于调解相互作用。调查将开始与一维晶格，并在项目过程中向更高维的结构。这个奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。