Electro-optic sampling of the electric-field operator for ultrabroadband pulses of Gaussian quantum light

IF 5 2区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Geehyun Yang, Sandeep Sharma and Andrey S Moskalenko
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引用次数: 0

Abstract

Quantum light pulses (QLPs) can be described by spatio-temporal modes, each of which is associated with a quantum state. In the mid-infrared spectral range, electro-optic sampling (EOS) provides a means to characterize quantum fluctuations in the electric field of such light pulses. Here, we present a protocol based on the two-port EOS technique that enables the complete characterization of multimode Gaussian quantum light, demonstrating robustness to both the shot noise and cascading effects. We validate this approach theoretically by reconstructing a multimode squeezed state of light generated in a thin nonlinear crystal driven by a single-cycle pulse. Our findings establish the two-port EOS technique as a versatile tool for characterizing ultrafast multimode quantum light, thereby broadening the reach of quantum state tomography. Potential applications include the characterization of complex quantum structures, such as correlations and entanglement in light and matter. Further, extensions to study multimode non-Gaussian QLPs can be envisaged.
高斯量子光超宽带脉冲电场算子的电光采样
量子光脉冲可以用时空模式来描述,每个时空模式都与一个量子态相关联。在中红外光谱范围内,电光采样(EOS)提供了表征此类光脉冲电场中的量子波动的手段。在这里,我们提出了一种基于双端口EOS技术的协议,该协议能够完整地表征多模高斯量子光,并展示了对散粒噪声和级联效应的鲁棒性。我们从理论上验证了这一方法,重建了单周脉冲驱动的薄非线性晶体中产生的光的多模压缩态。我们的研究结果建立了双端口EOS技术作为表征超快多模量子光的通用工具,从而扩大了量子态层析成像的范围。潜在的应用包括复杂量子结构的表征,例如光和物质中的相关性和纠缠。此外,可以设想扩展到研究多模非高斯qlp。
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来源期刊
Quantum Science and Technology
Quantum Science and Technology Materials Science-Materials Science (miscellaneous)
CiteScore
11.20
自引率
3.00%
发文量
133
期刊介绍: Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. Quantum Science and Technology is a new multidisciplinary, electronic-only journal, devoted to publishing research of the highest quality and impact covering theoretical and experimental advances in the fundamental science and application of all quantum-enabled technologies.
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