Matter and antimatter are like the good and evil twins of nature; they are endowed with equal and opposite characteristics like charge and spin, so if they meet they obliterate each other, releasing a flash of energy upon contact. 物质和反物质就像自然界善良与邪恶的双胞胎;它们被赋予相同和相反的特性类似电荷及旋转,因此如果它们相遇,它们接触之后,释放出能量闪光。
In the case of two electrons occupying the same orbital, the [ [ Pauli principle]] demands that they have opposite spin. 在两个电子占据同一个轨道的情况中,[[泡利原理]]要求它们[[自旋]]相反。
The well-known local moment picture is a limiting form of general spin fluctuations and in its opposite limit we have weakly ferro-magnetic metals where the long wave modes of spin fluctuations dominate. 人们熟知的局域矩图象是普遍自旋涨落理论的一个极限形式,而其相反的极限则为弱铁磁金属。这里,主导的是自旋涨落的长波模式。
If two electrons with opposite spin are in one of quantum dots initially, they will stay there as the system is evolving. 若两个自旋相反的电子初始处同一个量子点中,电子将一直局域在初态,但当两个电子初始处于两个量子点中时,电子将不会局域在初态。