Eigenbasis

- Modern Physics -
Quantum Mechanics Dictionary

A mathematical structure used to represent quantum states and the operations performed on them. It specifies how states are expressed, related, combined, and decomposed into components that support calculation. It does not by itself determine physical predictions without a mapping to observables and measurement rules.

Eigenbasis

Natural & Formal Sciences Dictionary
A basis of a vector space composed of eigenvectors of a linear operator so that the operator acts diagonally on coordinate representations relative to that basis.