对角元 meaning in English
diagonal element
Examples
- We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states . then , the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism . we deduce the coherent term by improving the nature of squeezing operators , displace operators and canonical transformation
其一，仅有阻尼相互作用和势能相互作用，此时利用位移算符的性质和相干态的性质很方便地推导了量子动力学模型的相干项(约化密度矩阵的非对角元) ；其二，考虑的是既有单光子相互作用又有双光子相互作用，这时利用相干态、压缩算符及正则变换等的性质推导出相干项。