量子数的均衡从数学含义来描述对称性的量子数＋1（偶）或－1（奇） A quantum number, either+1(even) or-1(odd), that mathematically describes this property.
引力微子一种假想粒子，被假定为引力相互作用的量子，并被推测为具有无限长寿命、零电荷和零静止质量 A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass.
费密子一种如电子、质子或中子等自旋为半整数的基本粒子，具有一种使得不可能有多于一个的粒子占有任何一个特殊的量子力学态的量子力学对称性 A particle, such as an electron, a proton, or a neutron, having half-integral spin and obeying statistical rules requiring that not more than one in a set of identical particles may occupy a particular quantum state.
