We discuss the phase instability of the system with the grand potential functional and find only gas - liquid phase transition happens and the demixing phase transition does not happen . after numerical calculation we want to draw the phase transition line , but failed in low density because of the divergence in calculation 利用用巨勢(shì)泛函展開的方法我們對(duì)系統(tǒng)進(jìn)行了相不穩(wěn)定分析,發(fā)現(xiàn)在我們所討論的離子液體系統(tǒng)中只會(huì)有氣?液凝結(jié)相變發(fā)生,而不會(huì)有分層相f碩士學(xué)住論文物malaster ’ stm “變發(fā)生。
In the field of fundamental research , such as quantum optics , blue light can be used as a pump source of optical parametric oscillator ( opo ) to generate the neoclassical light fields around wavelength of 860nm , which can be detected with 99 . 9 % of quantum efficiency , the highest efficiency in the measurement of neoclassical light as known yet it is also possible to generate the squeezed vacuum state at 852nm , which is the resonance wavelength of the transition line d2 of cesium atoms and can be supposed to investigate the properties of atomic radiation in the interaction between atoms and quantum state of light fields 在量子光學(xué)中,該藍(lán)光作為下轉(zhuǎn)換的泵浦源,可以產(chǎn)生860nm非經(jīng)典光場(chǎng),其探測(cè)效率可達(dá)99 . 9 ,高于目前產(chǎn)生的其他任何波段的非經(jīng)典光場(chǎng)。同時(shí)通過(guò)溫度調(diào)諧,可望產(chǎn)生與銫原子d2線作用的852nm波段的壓縮真空態(tài),從而開展非經(jīng)典光場(chǎng)與冷原子的相互作用等方面的實(shí)驗(yàn)研究。本文主要通過(guò)knbo _ 3晶體外腔諧振倍頻技術(shù)來(lái)產(chǎn)生藍(lán)色激光光源。