From dc3498fd50121eadbdd3ddac5bf950a16e2b50cb Mon Sep 17 00:00:00 2001
From: Prefetch
Date: Thu, 18 Nov 2021 20:07:12 +0100
Subject: Expand knowledge base

---
 content/know/concept/dyson-equation/index.pdc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'content/know/concept/dyson-equation')

diff --git a/content/know/concept/dyson-equation/index.pdc b/content/know/concept/dyson-equation/index.pdc
index be93379..25abe11 100644
--- a/content/know/concept/dyson-equation/index.pdc
+++ b/content/know/concept/dyson-equation/index.pdc
@@ -63,8 +63,8 @@ Let us assume that $\hat{H}_0$ is simple,
 such that $G_0$ and $\hat{G}{}_0^{-1}$ can be found without issues
 by solving the defining equation above.
 
-Suppose we now perturb this Hamiltonian with
-a possibly time-dependent operator $\hat{H}_1(\vb{r}, t)$,
+Suppose we now add a more complicated and
+possibly time-dependent term $\hat{H}_1(\vb{r}, t)$,
 in which case the corresponding fundamental solution
 $G(\vb{r}, \vb{r}', t, t')$ satisfies:
 
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