Strong–laser–field physics is a research direction that relies on the use of high-power lasers and has led to fascinating achievements ranging from relativistic particle acceleration to attosecond science. On the other hand, quantum optics has been built on the use of low photon number sources and has opened the way for groundbreaking discoveries in quantum technology, advancing investigations ranging from fundamental tests of quantum theory to quantum information processing. Despite the tremendous progress, until recently these directions have remained disconnected. This is because the majority of the interactions in the strong-field limit have been successfully described by semi-classical approximations treating the electromagnetic field classically, as there was no need to include the quantum properties of the field to explain the observations. The link between strong–laser–field physics, quantum optics, and quantum information science has been developed in the recent past. Studies based on fully quantized and conditioning approaches have shown that intense laser–matter interactions can be used for the generation of controllable entangled and non-classical light states. These achievements open the way for a vast number of investigations stemming from the symbiosis of strong–laser–field physics, quantum optics, and quantum information science. Here, after an introduction to the fundamentals of these research directions, we report on the recent progress in the fully quantized description of intense laser–matter interaction and the methods that have been developed for the generation of non-classical light states and entangled states. Also, we discuss the future directions of non-classical light engineering using strong laser fields, and the potential applications in ultrafast and quantum information science.

中文翻译：

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强激光场物理、非经典光态与量子信息科学


强激光场物理是一个依赖于高功率激光使用的研究方向，并取得了从相对论粒子加速到阿秒科学等一系列令人着迷的成就。另一方面，量子光学建立在低光子数源的使用之上，为量子技术的突破性发现开辟了道路，推进了从量子理论的基础测试到量子信息处理的研究。尽管取得了巨大进展，但直到最近这些方向仍然相互脱节。这是因为强场极限中的大多数相互作用已经通过经典地处理电磁场的半经典近似成功地描述了，因为不需要包括场的量子特性来解释观察结果。强激光场物理、量子光学和量子信息科学之间的联系最近得到了发展。基于完全量化和调节方法的研究表明，强烈的激光与物质相互作用可用于生成可控纠缠和非经典光态。这些成就为强激光场物理、量子光学和量子信息科学共生的大量研究开辟了道路。在这里，在介绍了这些研究方向的基础知识后，我们报告了强激光-物质相互作用的完全量化描述的最新进展以及为生成非经典光态和纠缠态而开发的方法。 此外，我们还讨论了使用强激光场的非经典光工程的未来方向，以及在超快和量子信息科学中的潜在应用。