Non-classical properties of coherent light interacting with two harmonic modes coupled through the angular momentum

IF 1.9 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Pramana Pub Date : 2025-03-17 DOI:10.1007/s12043-025-02896-6

Kartick Chandra Saha, Dolan Krishna Bayen, Swapan Mandal

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引用次数: 0

Abstract

The dynamical solutions of two quantised harmonic modes coupled through the angular momentum are used to study the photon antibunching (PA) and the amplitude squared squeezing (ASS) of the input coherent radiation field interacting with the said coupled two oscillators. The analytical closed-form expressions for the PA and the ASS are exhibited. The complicated nature of the exact analytical solutions are on the way of extracting good physics. Therefore, the parametric estimates for the ASS and the PA are exhibited. A small algebra shows that the coupling parameter is of two parts. One of the two parts is responsible for the quantum optical properties of the input radiation field. Interestingly, the PA is obtained even when both the harmonic modes are in vacuum. It substantiates the fact that the coupling parameter induces nonlinearity and hence the photons are generated out of the vacuum. The data chosen for the symbolic calculations are theoretical in nature. Of course, these data are quite consistent with those of the theoretical developments. Apart from the academic interests of the present investigation, it is possible to plan a real experiment to verify the analytical results.

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通过角动量耦合的两个谐波模与相干光相互作用的非经典性质

利用角动量耦合的两个量子化谐振模的动力学解，研究了与这两个耦合振子相互作用的输入相干辐射场的光子反聚束（PA）和幅值平方压缩（ASS）。给出了PA和ASS的解析封闭表达式。精确解析解的复杂性是提取好的物理性质的途径。因此，给出了对ASS和PA的参数估计。一个小代数表明，耦合参数由两部分组成。这两个部分之一负责输入辐射场的量子光学特性。有趣的是，即使两个谐波模都在真空中，也能得到PA。它证实了耦合参数引起非线性，从而使光子从真空中产生的事实。为符号计算所选择的数据本质上是理论性的。当然，这些数据与理论发展是相当一致的。除了目前研究的学术兴趣之外，还可以计划一个真实的实验来验证分析结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pramana 物理-物理：综合

CiteScore

3.60

自引率

7.10%

发文量

206

审稿时长

3 months

期刊介绍： Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.