Update 2022-03-02 15:47
This commit is contained in:
+12
-12
@@ -1,7 +1,7 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<!-- 2022-03-01 Tue 08:14 -->
|
||||
<!-- 2022-03-02 Wed 15:45 -->
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||||
<title>Pre-Quantum Electrodynamics</title>
|
||||
@@ -1629,19 +1629,19 @@ The next terms in the expansion are obtained similarly: the <b>quadrupole</b> te
|
||||
\]
|
||||
and can be rewritten as
|
||||
</p>
|
||||
<div class="eqlabel" id="org17e90cc">
|
||||
<div class="eqlabel" id="org2b10250">
|
||||
<p>
|
||||
<a id="p_quad"></a><a href="./ems_ca_me_h.html#p_quad"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
|
||||
<path d="M6.354 5.5H4a3 3 0 0 0 0 6h3a3 3 0 0 0 2.83-4H9c-.086 0-.17.01-.25.031A2 2 0 0 1 7 10.5H4a2 2 0 1 1 0-4h1.535c.218-.376.495-.714.82-1z"/>
|
||||
<path d="M9 5.5a3 3 0 0 0-2.83 4h1.098A2 2 0 0 1 9 6.5h3a2 2 0 1 1 0 4h-1.535a4.02 4.02 0 0 1-.82 1H12a3 3 0 1 0 0-6H9z"/>
|
||||
</svg></a>
|
||||
</p>
|
||||
<div class="alteqlabels" id="org3112105">
|
||||
<div class="alteqlabels" id="org1f7d81e">
|
||||
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="main div" id="org2972b92">
|
||||
<div class="main div" id="org7bc038c">
|
||||
<p>
|
||||
\[
|
||||
\phi_q ({\bf r}) = \frac{1}{4\pi \varepsilon_0} \frac{1}{2} \sum_{a,b} \frac{r_a r_b}{r^5} Q_{ab}
|
||||
@@ -1653,19 +1653,19 @@ and can be rewritten as
|
||||
<p>
|
||||
in terms of the <b>quadrupole moment</b>
|
||||
</p>
|
||||
<div class="eqlabel" id="org427c509">
|
||||
<div class="eqlabel" id="org90a53a1">
|
||||
<p>
|
||||
<a id="quadmom"></a><a href="./ems_ca_me_h.html#quadmom"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
|
||||
<path d="M6.354 5.5H4a3 3 0 0 0 0 6h3a3 3 0 0 0 2.83-4H9c-.086 0-.17.01-.25.031A2 2 0 0 1 7 10.5H4a2 2 0 1 1 0-4h1.535c.218-.376.495-.714.82-1z"/>
|
||||
<path d="M9 5.5a3 3 0 0 0-2.83 4h1.098A2 2 0 0 1 9 6.5h3a2 2 0 1 1 0 4h-1.535a4.02 4.02 0 0 1-.82 1H12a3 3 0 1 0 0-6H9z"/>
|
||||
</svg></a>
|
||||
</p>
|
||||
<div class="alteqlabels" id="orgc719f7a">
|
||||
<div class="alteqlabels" id="org82fdf3d">
|
||||
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="main div" id="orgb94ca16">
|
||||
<div class="main div" id="org5bcb7b7">
|
||||
<p>
|
||||
\[
|
||||
Q_{ab} = \int_{\cal V} d\tau_s (3 r_{s,a} r_{s,b} - r_s^2 \delta_{a,b}) \rho ({\bf r}_s).
|
||||
@@ -1684,19 +1684,19 @@ This is a symmetric, traceless rank \(2\) tensor: \(Q_{ab} = Q_{ba}\) and
|
||||
<p>
|
||||
Our expansion for the potential, with terms up to quadrupole ones, thus looks like
|
||||
</p>
|
||||
<div class="eqlabel" id="orgaaea2e1">
|
||||
<div class="eqlabel" id="org8293f40">
|
||||
<p>
|
||||
<a id="p_mdq"></a><a href="./ems_ca_me_h.html#p_mdq"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
|
||||
<path d="M6.354 5.5H4a3 3 0 0 0 0 6h3a3 3 0 0 0 2.83-4H9c-.086 0-.17.01-.25.031A2 2 0 0 1 7 10.5H4a2 2 0 1 1 0-4h1.535c.218-.376.495-.714.82-1z"/>
|
||||
<path d="M9 5.5a3 3 0 0 0-2.83 4h1.098A2 2 0 0 1 9 6.5h3a2 2 0 1 1 0 4h-1.535a4.02 4.02 0 0 1-.82 1H12a3 3 0 1 0 0-6H9z"/>
|
||||
</svg></a>
|
||||
</p>
|
||||
<div class="alteqlabels" id="orgaa0aa0d">
|
||||
<div class="alteqlabels" id="org691a106">
|
||||
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="main div" id="orgfc6e5d9">
|
||||
<div class="main div" id="orge2df003">
|
||||
<p>
|
||||
\[
|
||||
\phi({\bf r}) = \frac{1}{4\pi \varepsilon_0} \left( \frac{Q}{r} + \sum_a \frac{r_a}{r^3} p_a + \frac{1}{2} \sum_{a,b} \frac{r_a r_b}{r^5} Q_{ab} + ... \right)
|
||||
@@ -1717,7 +1717,7 @@ the leading nonvanishing multipole moment is independent of the chosen location
|
||||
the origin of the coordinate system (see Jackson Prob. 4.4).
|
||||
</p>
|
||||
|
||||
<div class="info div" id="orgb1b791d">
|
||||
<div class="info div" id="orga3860ed">
|
||||
<p>
|
||||
<b>A consistent nomenclature for the multipole expansion?</b>
|
||||
</p>
|
||||
@@ -1866,7 +1866,7 @@ target="_blank">Creative Commons Attribution 4.0 International License</a>.
|
||||
</div>
|
||||
<div id="postamble" class="status">
|
||||
<p class="author">Author: Jean-Sébastien Caux</p>
|
||||
<p class="date">Created: 2022-03-01 Tue 08:14</p>
|
||||
<p class="date">Created: 2022-03-02 Wed 15:45</p>
|
||||
<p class="validation"></p>
|
||||
</div>
|
||||
|
||||
|
||||
Reference in New Issue
Block a user