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Photonic transistor and router using a single quantum-dotconfined spin in a single-sided optical microcavity

机译:在单面光学微腔中使用单量子点限制自旋的光子晶体管和路由器

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摘要

The future Internet is very likely the mixture of all-optical Internet with low power consumption and quantum Internet with absolute security guaranteed by the laws of quantum mechanics. Photons would be used for processing, routing and com-munication of data, and photonic transistor using a weak lightto control a strong light is the core component as an optical analogue to the electronic transistor that forms the basis of modern electronics. In sharp contrast to previous all-optical tran-sistors which are all based on optical nonlinearities, here I introduce a novel design for a high-gain and high-speed (up to terahertz) photonic transistor and its counterpart in the quantum limit, i.e., single-photon transistor based on a linear optical effect: giant Faraday rotation induced by a single electronic spin in a singlesided optical microcavity. A single-photon or classical optical pulse as the gate sets the spin state viaprojective measurement and controls the polarization of a strong light to open/block the photonic channel. Due to the duality as quantum gate for quantum information processing and transistor for optical information processing, this versatile spin-cavity quantum transistor provides a solid-stateplatform ideal for all-optical networks and quantum networks.
机译:未来的互联网很可能是低功耗全光互联网和量子力学定律所保证的绝对安全的量子互联网的混合体。光子将用于数据的处理,路由和通信,而使用弱光控制强光的光子晶体管是构成现代电子学基础的电子晶体管的光学模拟的核心组件。与以前的全部基于光学非线性的全光晶体管形成鲜明对比的是,在这里,我介绍一种新颖的设计,用于高增益和高速(高达太赫兹)光子晶体管及其在量子极限内的对应晶体管,即,基于线性光学效应的单光子晶体管:由单电子自旋在单面光学微腔中引起的巨大法拉第旋转。作为门的单光子或经典光脉冲通过投影测量设置自旋状态,并控制强光的偏振以打开/阻挡光子通道。由于具有双重性,既可以用作量子信息处理的量子门,又可以用作光学信息处理的晶体管,所以这种多功能的自旋腔量子晶体管为全光网络和量子网络提供了理想的固态平台。

著录项

  • 作者

    Hu Chengyong;

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  • 年度 2017
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  • 原文格式 PDF
  • 正文语种 eng
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