Eigenoperator

{{Short description|Type of linear operator}}

In mathematics, an eigenoperator, A, of a matrix H is a linear operator such that

: $[H,A]\; =\; \backslash lambda\; A\; \backslash ,$

where $\backslash lambda$ is a corresponding scalar called an eigenvalue.{{cite book|last1=Gardiner|first1=Crispin|title=Quantum Noise|url=https://archive.org/details/quantumnoisehand00gard_085|url-access=limited|date=2000|publisher=Springer|page=[https://archive.org/details/quantumnoisehand00gard_085/page/n110 85]}}