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Observation of Ground-State Quantum Beats in Atomic Spontaneous Emission

机译：原子自发发射中基态量子拍的观察

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摘要

We report ground-state quantum beats in spontaneous emission from a continuously driven atomic ensemble. Beats are visible only in an intensity autocorrelation and evidence spontaneously generated coherence in radiative decay. Our measurement realizes a quantum eraser where a first photon detection prepares a superposition and a second erases the "which path" information in the intermediate state.
机译：我们报告了来自连续驱动的原子团自发发射的基态量子拍。节拍仅在强度自相关中可见，并且证明辐射衰减自发地产生相干性。我们的测量实现了一种量子擦除器，其中第一个光子检测准备了一个叠加，第二个擦除了处于中间状态的“哪条路径”信息。

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  • 来源
    《Physical review letters》 |2010年第12期|P.123602.1-123602.4|共4页
  • 作者

    D.G. Norris; L.A. Orozco; P. Barberis-Blostein; H. J. Carmichael;

  • 作者单位

    Joint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742-4111, USA;

    rnJoint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742-4111, USA;

    rnJoint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742-4111, USA Instituto de Investigacion en Matemdticas Aplicadas y en Sistemas, Universidad Nacional Autonoma de Mexico, Mexico, DF 01000, Mexico;

    rnJoint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742-4111, USA Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand;

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  • 正文语种 eng
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  • 关键词

    cavity quantum electrodynamics; micromasers; decoherence; open systems; quantum statistical methods; zeeman and stark effects;

    机译：腔量子电动力学微型激光器退相干开放系统;量子统计方法;塞曼和斯塔克效应;

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