# Levinson's Theorem

> in nonrelativistic quantum scattering, a theorem relating the number of bound states of a potential to the phase shift of a scattered wave at energies 0 and ∞

**Wikidata**: [Q25110385](https://www.wikidata.org/wiki/Q25110385)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Levinson's_theorem)  
**Source**: https://4ort.xyz/entity/levinson-s-theorem