中文摘要：

不确定原理是量子力学的基本原理之一.我们导出2个不确定等式,适用于2个不相容的可观测量.同时得到一个弱测量中的不确定关系,适用于2个不相容可观测量对应的非厄米算符.它指出了制备前选择和后选择系综的极限.

英文摘要：

Uncertainty principle is one of the fundamental principles in quantum mechanics. In this work,we derive two uncertainty equalities,which hold for all pairs of incompatible observables. We also obtain an uncertainty relation in weak measurement which captures the limitations on the preparation of pre- and postselected ensemble and holds for two non-Hermitian operators corresponding to two non-commuting observables.