November 7, Glossary

Reading: Griffiths Chapter 3

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Eigenfunctions and eigenvalues of a Hermitian operator
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revisit 重游
cf. is an abbreviation for the Latin word confer, meaning "compare" or "consult"
observable 可观测的物理量
turnaround rule
equivalent 同等

function 函数
mapping 映射，或者射影，在数学及相关的领域经常等同于函数

definition 定义
theorem 定理
corollary 推论

determinant 行列式
singular matrix 奇异方阵 (det=0, doesn't have an inverse)
non-singular matrix (or invertible matrix) 非奇异方阵或可逆方阵 (det!=0)
inverse 逆
rank 矩阵的秩

stationary state 定态 (eigenstate of Hamiltonian * time evolution)
pure state 纯态 （eigenstate of Hermitian operator A)
mixed state 混态 (linear combination of pure states)

respectively 分别
s.t. such that