As we all know , the diagonalization of hamiltonian is an important procedure in solving the many - body problem in second quantization frame . usually we used the bogoliubov - valatin transformation method to diagonalization the hamiltonian that we were interesting in 眾所周知,二次量子化框架下,多體物理系統(tǒng)哈密頓量的對(duì)角化步驟是非常重要的,通常我們都是使用bogoliubov - valatin變換對(duì)角化方法將被研究系統(tǒng)哈密頓量對(duì)角化。
In this paper , we first investigate the impurity effect ( ba2 + ) on the dielectric and phase transition properties in srtio3 within the framework of the transverse - field ising model ( tim ) . then a possible coupling mechanism between the magnetism and dielectric properties in eutio3 is discussed and the magnetic influence on the frequency of the soft - phonon mode is investigated via the heisenberg model , soft - mode theory under the mean field approximation , the second quantization theory and the perturbation theory . and we proceed further investigation on eu1 - xbaxtio3 of 我們發(fā)現(xiàn)baxeul _ xtio3 ( o ‘ x ‘ 0 . 2 )的介電常數(shù)和由內(nèi)察的偏置場(chǎng)導(dǎo)致的電極化除了隨雜質(zhì)濃度產(chǎn)生相應(yīng)的變化,同時(shí)在磁和介電性質(zhì)的藕合作用影響下在低溫下偏離通常的量子順電體行為,在尼爾溫度附近出現(xiàn)異常,且磁場(chǎng)通過對(duì)最近鄰自旋關(guān)聯(lián)的作用來(lái)影響介電常數(shù)和電極化。
百科解釋
Second quantization, or Field quantization, is a powerful procedure used in quantum field theory for describing the many-particle systems by quantizing the fields using a basis that describes the number of particles occupying each state in a complete set of single-particle states. This differs from the first quantization, which uses the single-particle states as basis.
詳細(xì)百科解釋
其他語(yǔ)種釋義
second quantizationとは意味:第二量子化{だいに りょうしか}◆粒子の生成消滅演算子を考えて、粒子が一つもない狀態(tài)に対して、生成演算子を作用させることで多體系を記述する方法。