释义 |
multiplet
mul·ti·plet M0477400 (mŭl′tə-plĕt′, -plĭt)n.1. A spectral line having more than one component, representing slight variations in the energy states characteristic of an atom.2. Any group of subatomic particles that are similar in most properties, but have different electric charges, such as the nucleons, which form a doublet, or the pions, which form a triplet. [multipl(e) + (doubl)et.]multiplet (ˈmʌltɪˌplɛt; -plɪt) n1. (General Physics) a set of closely spaced lines in a spectrum, resulting from small differences between the energy levels of atoms or molecules2. (General Physics) a group of related elementary particles that differ only in electric charge[from multiple; on the model of doublet]multiplet
multiplet[′məl·tə·plət] (quantum mechanics) A collection of relatively closely spaced energy levels which result from the splitting of a single energy level by an interaction which is relatively weak; examples are spin-orbit multiplets and isospin multiplets. (spectroscopy) A collection of relatively closely spaced spectral lines resulting from transitions to or from the members of a multiplet (as in the quantum-mechanics definition). |