From 03accd13c0a6ec4de2d8001edf3ce7553f831160 Mon Sep 17 00:00:00 2001 From: Prefetch Date: Tue, 27 Sep 2022 21:20:05 +0200 Subject: Clean up CSS, minor design changes --- content/know/concept/feynman-diagram/index.pdc | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'content/know/concept/feynman-diagram/index.pdc') diff --git a/content/know/concept/feynman-diagram/index.pdc b/content/know/concept/feynman-diagram/index.pdc index 600be61..98ed668 100644 --- a/content/know/concept/feynman-diagram/index.pdc +++ b/content/know/concept/feynman-diagram/index.pdc @@ -43,7 +43,7 @@ and $\mathcal{T}\{\}$ denote the [time-ordered product](/know/concept/time-ordered-product/): - + $$\begin{aligned} = i \hbar G_{s_2 s_1}^0(\vb{r}_2, t_2; \vb{r}_1, t_1) @@ -64,7 +64,7 @@ a causal Green's function $G$ for the entire Hamiltonian $\hat{H}$, where the subscript $H$ refers to the [Heisenberg picture](/know/concept/heisenberg-picture/): - + $$\begin{aligned} = i \hbar G_{s_2 s_1}(\vb{r}_2, t_2; \vb{r}_1, t_1) @@ -79,7 +79,7 @@ hence it starts and ends at the same time, and no arrow is drawn: - + $$\begin{aligned} = \frac{1}{i \hbar} W_{s_2 s_1}(\vb{r}_2, t_2; \vb{r}_1, t_1) @@ -102,7 +102,7 @@ One-body (time-dependent) operators $\hat{V}$ in $\hat{H}_1$ are instead represented by a special vertex: - + $$\begin{aligned} = \frac{1}{i \hbar} V_s(\vb{r}, t) @@ -179,7 +179,7 @@ Consider the following diagram and the resulting expression, where $\tilde{\vb{r}} = (\vb{r}, t)$, and $\tilde{\vb{k}} = (\vb{k}, \omega)$: - + $$\begin{aligned} &= (i \hbar)^3 \sum_{s s'} \!\!\iint \dd{\tilde{\vb{r}}} \dd{\tilde{\vb{r}}'} -- cgit v1.2.3