在量子光学的研究领域，非经典光场的产生及应用是一个国际前沿的研究课题。
The study on the generation and application of nonclassical optical fields is an international advanced research topic.
压缩态光场是量子光学实验研究中的重要非经典光场，广泛应用于量子信息、量子通信、精密测量等领域。
Squeezed light is important nonclassical light state of quantum optical experiments. It is applied widely in quantum information, quantum communication and precise measurement etc.
可以看出热态光场的平均光子数和多光子跃迁对光场非经典性质有强烈的影响。
It can be find that average photon number of thermal radiation field and multi-photon transition process have intense influence on the non-classical properties.
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