Talk:Mori-Zwanzig formalism

Reviewer Note

This draft appears to satisfy notability.

As per review at WT:WikiProject Physics. Robert McClenon (talk) 11:31, 3 May 2019 (UTC)

Operator identity

Is there a source on the operator identity

$e^{iLt}=e^{i(1-P)Lt}+\int _{0}^{t}dse^{iL(t-s)}PLe^{i(1-P)Ls}?$

When comparing to Evans & Morriss, the second term lacks the imaginary unit. In Evans & Morriss, it reads (eq. (4.26))

$e^{iLt}=e^{i(1-P)Lt}+\int _{0}^{t}dse^{iL(t-s)}iPLe^{i(1-P)Ls}?$

--ThomasBissinger (talk) 20:02, 15 January 2022 (UTC)