论文标题
量子狂犬模型中多光子束的确定性生成
Deterministic generation of multi-photon bundles in a quantum Rabi model
论文作者
论文摘要
多光子束状态对于诸如量子计量学，量子光刻，量子通信和量子生物学等广泛应用至关重要。在这里，我们提出了一种方案，该方案通过量子狂犬模型中的虚拟激发产生多光子束。我们的方法利用了ξ型三级原子，在该原子中，上层两个水平耦合到腔场，形成具有超肌耦合的量子性狂犬模型，而下层两个水平之间的过渡则由两个高斯脉冲序列驱动。我们表明，驱动脉冲通过刺激的拉曼绝热通道技术从量子狂犬模型的特征状态诱导多个光子的确定性发射，因此可以在空腔输出场中产生多个光子束。我们计算输出光子的广义二阶相关函数，该功能揭示了发射的光子形成反启动的多光子束。
Multi-photon bundle states are crucial for a broad range of applications such as quantum metrology, quantum lithography, quantum communication, and quantum biology. Here we propose a scheme that generates multi-photon bundles via virtual excitations in a quantum Rabi model. Our approach utilizes a Ξ-type three-level atom, where the upper two levels are coupled to a cavity field to form a quantum Rabi model with ultrastrong coupling, and the transition between the lower two levels is driven by two sequences of Gaussian pulses. We show that the driving pulses induce deterministic emission of multiple photons from the eigenstates of the quantum Rabi model via the stimulated Raman adiabatic passage technique, and hence can create bundles of multiple photons on-demand in the cavity output field. We calculate the generalized second-order correlation functions of the output photons, which reveal that the emitted photons form antibunched multi-photon bundles.
