NIRT: Quantum-State Transfer Between Photons and Nanostructures

NIRT:光子和纳米结构之间的量子态转移

基本信息

  • 批准号:
    0304678
  • 负责人:
  • 金额:
    $ 156万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-08-15 至 2008-07-31
  • 项目状态:
    已结题

项目摘要

Photons have proven to be most useful for encoding special quantum states and for transmitting them through free space or optical fibers. For local quantum-state operations photons are less favorable and well-localized quantum systems are desirable. In this respect quantum dots, often referred to as artificial atoms, are particularly attractive. This research aims at combining the advantages of photons with those of artificial atoms. The main objective is to transfer the polarization quantum state of a single photon onto excitons in quantum dots and visa versa. The anticipated results are: a novel positioning technique for a quantum dot in the center of an optical waveguide, the demonstration of a single-photon absorption and reemission by a single quantum dot inside a micro-pillar with intrinsic lensing, the demonstration of the polarization quantum-state transfer between single photons and single quantum dots, and creating entanglement between a quantum dot and a photon and between two quantum dots. The first requirement to achieve the objectives is that the coupling between photons and quantum dots has to be resonant in order to preserve the quantum-phase coherences. For this optical-cavities resonant both with the incoming photon and the quantum dot inside the cavity will be used. Two novel ways of achieving a strong optical mode overlap with the quantum dots will be explored. The first is to use quantum dots inside micro pillars that containing optical lensing through the use of tapered oxidation layer. The second is to develop a technique to position a single quantum dot in the center of an optical micro cavity. The second requirement is that the quantum dots have to be effectively symmetric in order to obtain exciton spin degeneracy. For this magnetic fields and/or strain-induced effects on the micro-pillars will be explored. The third requirement is that the reemitted photon from the quantum dot should be distinguishable from photons reflected from the sample surface. For this a Michelson interferometer will be used where the two end mirrors are replaced by one micro-cavity containing a quantum dot on resonance and one micro-pillar containing no quantum dots on resonance. Reaching the objectives will be a major step forwards in quantum-state control and harnessing and understanding quantum decoherence in nano-structures. The research is based on a close collaboration between the Materials, Engineering and Physics Departments at the University of California Santa Barbara. This collaboration provides an excellent opportunity for young researchers to perform interdisciplinary research on important topics in quantum (and classical) communication and information processing and in nano-structure fabrication. Reaching the objectives will initiate future research in storage of quantum information and in implementing the quantum repeater scheme (enabling long-distance quantum cryptography), quantum error correction and quantum networks.
光子已被证明是最有用的编码特殊量子态和传输它们通过自由空间或光纤。对于局域量子态操作,光子是不太有利的,而良好的局域量子系统是可取的。在这方面,量子点,通常被称为人造原子,特别有吸引力。这项研究的目的是将光子的优点与人造原子的优点结合起来。主要目标是将单光子的偏振量子态转移到量子点中的激子上,反之亦然。预期的结果是:一种新的光波导中心量子点定位技术,单量子点在具有本征透镜的微柱内的单光子吸收和再发射的演示,单光子和单量子点之间的偏振量子态转移的演示,以及量子点与光子之间和两个量子点之间的纠缠。实现目标的第一个要求是光子和量子点之间的耦合必须是共振的,以保持量子相位的相干性。为此,将使用与入射光子和腔内量子点共振的光学腔。我们将探索两种与量子点实现强光学模式重叠的新方法。第一种是利用量子点在包含光学透镜的微柱内,通过使用锥形氧化层。第二是开发一种技术,将单个量子点定位在光学微腔的中心。第二个要求是为了获得激子自旋简并,量子点必须是有效对称的。为此,将探讨磁场和/或应变对微柱的影响。第三个要求是,从量子点反射的光子应该与从样品表面反射的光子区分开来。为此,将使用迈克尔逊干涉仪,其中两个端镜由一个包含共振量子点的微腔和一个不包含共振量子点的微柱代替。实现这些目标将是量子态控制和利用和理解纳米结构中的量子退相干的重要一步。这项研究是基于加州大学圣巴巴拉分校材料系、工程系和物理系的密切合作。这项合作为年轻的研究人员提供了一个很好的机会,可以在量子(和经典)通信和信息处理以及纳米结构制造等重要课题上进行跨学科研究。实现这些目标将开启未来在量子信息存储和实现量子中继器方案(实现长距离量子加密)、量子纠错和量子网络方面的研究。

项目成果

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Dirk Bouwmeester其他文献

High NOON for photons
光子的正午时分
  • DOI:
    10.1038/429139a
  • 发表时间:
    2004-05-13
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Dirk Bouwmeester
  • 通讯作者:
    Dirk Bouwmeester
The quest for CMB signatures of conformal cyclic cosmology
寻找共形循环宇宙学的 CMB 特征
  • DOI:
    10.1088/1475-7516/2024/05/009
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    6.4
  • 作者:
    Eve Bodnia;Vlad Isenbaev;Kellan Colburn;Joe Swearngin;Dirk Bouwmeester
  • 通讯作者:
    Dirk Bouwmeester

Dirk Bouwmeester的其他文献

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{{ truncateString('Dirk Bouwmeester', 18)}}的其他基金

Implementing a Quantim CNOT Gate Using Solid State Cavity QED
使用固态腔 QED 实现量子 CNOT 门
  • 批准号:
    1314982
  • 财政年份:
    2013
  • 资助金额:
    $ 156万
  • 项目类别:
    Continuing Grant
Quantum Post-Selected Optomechanics
量子后选光机械
  • 批准号:
    1206118
  • 财政年份:
    2012
  • 资助金额:
    $ 156万
  • 项目类别:
    Continuing Grant
MRI-R2: Nano Photonic Imaging System
MRI-R2:纳米光子成像系统
  • 批准号:
    0960331
  • 财政年份:
    2010
  • 资助金额:
    $ 156万
  • 项目类别:
    Standard Grant
Solid-State Cavity Quantum Electrodynamics
固态腔量子电动力学
  • 批准号:
    0901886
  • 财政年份:
    2009
  • 资助金额:
    $ 156万
  • 项目类别:
    Standard Grant
Quantum States of OptoMechanical Structures
光机械结构的量子态
  • 批准号:
    0804177
  • 财政年份:
    2008
  • 资助金额:
    $ 156万
  • 项目类别:
    Continuing Grant
Quantum Superposition States of a Mirror
镜子的量子叠加态
  • 批准号:
    0504825
  • 财政年份:
    2005
  • 资助金额:
    $ 156万
  • 项目类别:
    Continuing Grant
NER: Energy Transport in Microtubules
NER:微管中的能量传输
  • 批准号:
    0404440
  • 财政年份:
    2004
  • 资助金额:
    $ 156万
  • 项目类别:
    Standard Grant
SGER: Exploratory Research into Producing Macroscopic Quantum Superpositions
SGER:产生宏观量子叠加的探索性研究
  • 批准号:
    0334970
  • 财政年份:
    2003
  • 资助金额:
    $ 156万
  • 项目类别:
    Standard Grant

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