Quantum characteristics of a nondegenerate three-level laser with parametric amplification in an open cavity

IF 1.1 4区 物理与天体物理 Q4 OPTICS
Aliyyi Adem
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引用次数: 0

Abstract

This study investigates the entanglement and squeezing characteristics of light generated by a non-degenerate, coherently driven three-level laser in an open cavity, coupled to a two-mode vacuum reservoir through a single-port mirror. By normal ordering the noise operators, we simplified the calculations and derived the evolution equations for the atomic operators using the master equation. From the steady-state solutions, we determined the average of the photon number, the quadrature variance of radiation, entanglement, the normalized second-order correlation of the cavity radiation, the linear correlation coefficient between the two modes, and fluctuations in intensity difference. Our findings indicate that higher spontaneous emission rates significantly decrease the average photon number, while the amplitude of the pumping mode interacting with the parametric amplifier (\(\varepsilon\)) increases it. Enhanced squeezing is observed with increasing (\(\varepsilon\)), reaching a peak at \(\varepsilon = 0.03\) \((72.6\%)\). Moreover, spontaneous emission enhances squeezing. A direct correlation between squeezing and entanglement is found, with greater squeezing associated with increased entanglement. These insights have significant implications for advancing quantum technologies, such as quantum communication, where controlled squeezing and entanglement improve secure communication channels and signal-to-noise ratios, quantum computing, where they enhance error correction protocols and gate operation efficiencies, and quantum sensing, where they increase sensitivity for more precise measurements of physical quantities.

开腔中具有参数放大的非简并三能级激光器的量子特性
本文研究了一个非简并、相干驱动的三能级激光器在开放腔中产生的光的纠缠和压缩特性,该激光器通过单孔反射镜耦合到双模真空储层。通过对噪声算符的正规排序,简化了计算,并利用主方程推导出原子算符的演化方程。从稳态解中,我们确定了光子数的平均值、辐射的正交方差、纠缠、腔辐射的归一化二阶相关、两种模式之间的线性相关系数以及强度差的波动。我们的研究结果表明,较高的自发发射率显著降低了平均光子数,而泵浦模式与参数放大器(\(\varepsilon\))相互作用的振幅增加了平均光子数。压缩随(\(\varepsilon\))的增加而增强,在\(\varepsilon = 0.03\)\((72.6\%)\)处达到峰值。自发辐射增强了压缩。发现了压缩和纠缠之间的直接关系,更大的压缩与增加的纠缠相关。这些见解对推进量子技术具有重要意义,例如量子通信,在量子通信中,受控的压缩和纠缠改善了安全的通信通道和信噪比,量子计算,在量子计算中,它们增强了纠错协议和门操作效率,以及量子传感,在量子传感中,它们提高了对物理量更精确测量的灵敏度。
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
Optical Review
Optical Review 物理-光学
CiteScore
2.30
自引率
0.00%
发文量
62
审稿时长
2 months
期刊介绍: Optical Review is an international journal published by the Optical Society of Japan. The scope of the journal is: General and physical optics; Quantum optics and spectroscopy; Information optics; Photonics and optoelectronics; Biomedical photonics and biological optics; Lasers; Nonlinear optics; Optical systems and technologies; Optical materials and manufacturing technologies; Vision; Infrared and short wavelength optics; Cross-disciplinary areas such as environmental, energy, food, agriculture and space technologies; Other optical methods and applications.
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