发表机构
Gleb Wataghin Institute of Physics - University of Campinas（格列布·瓦塔金物理研究所-坎皮纳斯大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究压缩相干态的福克态滤波，发现移除m=0和m=1福克分量可增强亚泊松特性，虽滤波态纯度因热环境快速下降，但滤波特征仍能长期保留，阐明了光子数调控在耗散场景的潜力与局限。
AI 中文摘要
调控光子数统计是生成和控制光的非经典态的核心能力。本文研究压缩相干态的福克态滤波如何用于调控其光子统计，考虑选择性移除m=0和m=1的福克分量，表明该过程可根据相干振幅增强场的亚泊松特性。随后分析这些经调控的态在热环境中的演化，尽管所有态最终都会弛豫到热统计，但滤波过程的特征可在演化的显著阶段持续存在，而滤波态的纯度会因无相干布居重分布快速下降。结果阐明了现实耗散场景中光子数调控的潜力与局限。
英文摘要
The ability to tailor photon-number statistics is central to the generation and control of nonclassical states of light. Here, we investigate how Fock-state filtering of squeezed coherent states can be used to engineer their photon statistics. We consider the selective removal of the $m=0$ and $m=1$ Fock components and show that this process can enhance the sub-Poissonian character of the field, depending on the coherent amplitude. We then analyze the evolution of these engineered states in a thermal environment. Although all states eventually relax toward thermal statistics, the signatures of the filtering process may persist over a significant part of the evolution, while the purity of the filtered states is rapidly degraded by incoherent population redistribution. Our results illustrate both the potential and the limitations of photon-number engineering in realistic, dissipative settings.
CommentsAccepted for publication in the Brazilian Journal of Physics Collection in honor of Prof. Amir O. Caldeira, "Frontiers in Quantum Mechanics and the 45 Years of the Caldeira-Leggett Model"
