反铁磁拉曼散射的压缩态

在量子力学研究领域中，人们发现了许多的非经典态，压缩态是其中的一类非经典态，由不确定性关系，处于压缩态的量子涨落小于相干态的量子涨落．人们期望利用这一性质去减少量子噪声，进行高精度信号的测量．所以玻色子的压缩态研究成为物理学研究领域很重要的研究课题．该文分析了二阶拉曼散射中温度因素对量子涨落的作用，讨论了温度对磁振子压缩态的影响，确定了压缩态存在的温度范围。

Squeezing State of Anti-ferromagnetic Raman Scattering

Many non-classical states have been found in the field of quantum mechanics, among which is the squeezing state. In general, according to the requirements of the uncertainty principle, a squeezed state may have lower quantum fluctuation in one quadrature than that in a coherent state, while another quadrature is greater than that of a coherent state. The idea of the squeezing states can be used to reduce quantum noise in measuring high precise signal. In this paper, the authors discussed the effect of temperature on the quantum fluctuations in the second-order Raman scattering. The domain of temperature is obtained, which satisfies the conditions of generating squeezed states.