pair spin 中文意思是什麼
pair spin
解釋
雙人旋轉-
Taking several different spin - state q for examples, we demonstrate the evolving pictures which are straightly made by numerical solutions of the magnetization and the equal time spin - pair correlation and the relaxation functions
以q = 2 ， 3 ， 4 ， 5 ， 8為例，我們對磁化強度和等時自旋對關聯時間演化方程做了數值計算。 -
The dynamics is described by the glauber - type stochastic progress with the single - spin transition meehanism and disposed approximately by weighted average method in which we add a corresponding weight to each possible configuration. we obtain not only the exact analytical solutions of the time dependent magnetization and equal time spin - pair correlation functions, but also the analytical temperature dependent dynamical relaxation function
通過採用加權平均的近似處理方法，也就是對各種可能出現的躍遷幾率賦一個相應的權重，我們不僅可以得到隨時間演化的磁化強度和等時對關聯的解析解，還得到了系統馳豫時間的溫度解析函數。 -
After a long time evolution, the system finally reaches a stable state at which the magnetization and the equal time spin - pair correlation are periodic oscillating functions with the equal period as the external field. numerical simulation shows : when the amplitude of external filed is large, there exits a particular temperature at which the average magnetization and the average spin - pair correlation are almost unaltered with various field amplitude ( i. e. magnetic susceptibility is zero ), and the particular temperature depends on the number of the spin states, cutting down with q increasing
由數值模擬得到：當外場幅度較大時，存在一個特殊的溫度點（我們稱之t ） ，在這個溫度點，系統的平均磁化強度和平均等時自旋對關聯隨外場幅度的變化幾乎保持不變（即磁化率為零） ，並且這個溫度的大小依賴于自旋態數目q的變化， q越大，這個溫度就越小；而當外場較小時，確信系統存在有限大小的臨界溫度 -
The two - dimenstional xy model undergoes an unusual klosterlitz - thouless phase transiton at low temperature, where the system magnetization still vanishes but there is an quai - long order with the spin configuration like the vortex pair
二維xy模型在較低溫時發生了特殊的kt相變，系統磁化強度仍為零，但呈現出類似渦旋對的準長程有序。
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