论文标题
非武器非谐度诱导单光子发射
Non-Hermitian Anharmonicity Induces Single-Photon Emission
论文作者
论文摘要
单光子来源对量子信息应用的需求很高。实现单光子发射的一种范式方法是通过在能级上进行非谐调，使得从相干驱动器中吸收单个光子会使系统从共振中移出并阻止第二个吸收。我们确定了一种新的机制，可以通过非弱点非骚扰性，即损失而不是在能量水平中进行非谐音。我们演示了两种类型的系统中的机制，包括可行的设置，该设置由弱耦合到两级发射极的混合金属型腔，并表明它在高度重复速度下诱导了高纯度单光子发射。
Single-photon sources are in high demand for quantum information applications. A paradigmatic way to achieve single-photon emission is through anharmonicity in the energy levels, such that the absorption of a single photon from a coherent drive shifts the system out of resonance and prevents absorption of a second one. We identify a novel mechanism for single-photon emission through non-Hermitian anharmonicity, i.e., anharmonicity in the losses instead of in the energy levels. We demonstrate the mechanism in two types of systems, including a feasible setup consisting of a hybrid metallodielectric cavity weakly coupled to a two-level emitter, and show that it induces high-purity single-photon emission at high repetition rates.
