An analytic representation for the third-harmonic generation along the well is derived by the density matrix operator theory of the quantum mechanics.
利用量子力学中的密度矩阵算符理论导出了该系统中三次谐波产生的解析表达式。
The density matrix and the entropy are calculated.
计算了密度矩阵、配分函数和熵。
We introduce some important matrices and their applications in quantum computation and quantum information, including density matrix, unitary matrix, etc.
介绍了量子计算与量子信息中的一些重要的矩阵及其应用，包括密度矩阵、酉矩阵等。
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