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Cavity quantum electrodynamics with atom-like mirrors

机译：类原子镜的腔量子电动力学

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摘要

It has long been recognized that atomic emission of radiation is not an immutable property of an atom, but is instead dependent on the electromagnetic environment(1) and, in the case of ensembles, also on the collective interactions between the atoms(2-6). In an open radiative environment, the hallmark of collective interactions is enhanced spontaneous emission-super-radiance(2)-with non-dissipative dynamics largely obscured by rapid atomic decay(7). Here we observe the dynamical exchange of excitations between a single artificial atom and an entangled collective state of an atomic array(9) through the precise positioning of artificial atoms realized as superconducting qubits(8) along a one-dimensional waveguide. This collective state is dark, trapping radiation and creating a cavity-like system with artificial atoms acting as resonant mirrors in the otherwise open waveguide. The emergent atom-cavity system is shown to have a large interaction-to-dissipation ratio (cooperativity exceeding 100), reaching the regime of strong coupling, in which coherent interactions dominate dissipative and decoherence effects. Achieving strong coupling with interacting qubits in an open waveguide provides a means of synthesizing multi-photon dark states with high efficiency and paves the way for exploiting correlated dissipation and decoherence-free subspaces of quantum emitter arrays at the many-body level(10-13).
机译：早已认识到，辐射的原子发射不是原子的一成不变的性质，而是取决于电磁环境（1），并且在集成的情况下还取决于原子之间的集体相互作用（2-6）。 ）。在开放的辐射环境中，集体相互作用的标志是自发发射-超辐射（2）增强，非耗散动力学在很大程度上被快速的原子衰变所掩盖（7）。在这里，我们通过沿一维波导实现为超导量子位（8）的人工原子的精确定位，观察到单个人工原子与原子阵列（9）纠缠的集体状态之间激发的动态交换。这种集体状态是黑暗的，捕获了辐射并创建了一个类似空腔的系统，人造原子在否则为开放式的波导中充当谐振镜。出现的原子-空穴系统具有较大的相互作用与耗散比（合作性超过100），达到了强耦合状态，其中相干相互作用主导了耗散和退相干效应。在开放波导中实现与相互作用的量子位的强耦合提供了一种高效合成多光子暗态的方法，并为在多体水平上利用相关的耗散和无退相干的量子发射器子空间铺平了道路（10-13） ）。

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  • 来源
    《Nature》 |2019年第7758期|692-697|共6页
  • 作者

    Mirhosseini Mohammad; Kim Eunjong; Zhang Xueyue; Sipahigil Alp; Dieterle Paul B.; Keller Andrew J.; Asenjo-Garcia Ana; Chang Darrick E.; Painter Oskar;

  • 作者单位

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

    CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA|CALTECH, Norman Bridge Lab Phys, Pasadena, CA 91125 USA|Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Barcelona, Spain|Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA;

    Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Barcelona, Spain|ICREA, Barcelona, Spain;

    CALTECH, Kavli Nanosci Inst, Pasadena, CA 91125 USA|CALTECH, Thomas J Watson Sr Lab Appl Phys, Pasadena, CA 91125 USA|CALTECH, Inst Quantum Informat & Matter, Pasadena, CA 91125 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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