Update 2022-03-22 10:53
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-22
@@ -1,7 +1,7 @@
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<!-- 2022-03-15 Tue 08:10 -->
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<!-- 2022-03-22 Tue 10:52 -->
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Pre-Quantum Electrodynamics</title>
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@@ -1637,18 +1637,18 @@ We thus obtain
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\]
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Recognizing the proper velocity, we thus get that charge density and current density can together form the
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</p>
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<div class="core div" id="org94723ec">
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<div class="core div" id="org4a23d61">
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<p>
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<b>Current density 4-vector</b>
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</p>
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<div class="eqlabel" id="org479bb40">
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<div class="eqlabel" id="org8494a4a">
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<p>
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<a id="Jmu"></a><a href="./red_rem_Me.html#Jmu"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="org324820b">
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<div class="alteqlabels" id="org63c21fa">
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</div>
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@@ -1665,18 +1665,18 @@ J^\mu = \left( c\rho, J_x, J_y, J_z \right)
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<p>
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The continuity equation <a href="./ems_ms_ce.html#conteq">conteq</a> takes the simple form
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</p>
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<div class="core div" id="org5885f61">
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<div class="core div" id="org2a3444b">
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<p>
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<b>Continuity equation</b>
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</p>
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<div class="eqlabel" id="org52b2d08">
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<div class="eqlabel" id="org2db5045">
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<p>
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<a id="conteq_rel"></a><a href="./red_rem_Me.html#conteq_rel"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="org8386e2d">
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<div class="alteqlabels" id="org830511b">
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</div>
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@@ -1692,18 +1692,18 @@ The continuity equation <a href="./ems_ms_ce.html#conteq">conteq</a> takes the s
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<p>
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while similarly the notation simplifies for
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</p>
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<div class="main div" id="orgdb33787">
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<div class="main div" id="org0816f0a">
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<p>
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<b>Maxwell's equations</b>
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</p>
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<div class="eqlabel" id="org26adf05">
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<div class="eqlabel" id="org3cc1fa8">
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<p>
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<a id="Max_rel"></a><a href="./red_rem_Me.html#Max_rel"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="orge69d726">
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<div class="alteqlabels" id="org77d9519">
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</div>
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@@ -1722,18 +1722,18 @@ while similarly the notation simplifies for
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<p>
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In terms of \(F^{\mu \nu}\) and the proper velocity \(\eta^\mu\), we also have the
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</p>
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<div class="main div" id="org1aadbdc">
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<div class="main div" id="orge8ec801">
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<p>
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<b>Minkowski force on a charge</b> \(q\)
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</p>
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<div class="eqlabel" id="org8ed30ad">
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<div class="eqlabel" id="org467f39b">
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<p>
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<a id="MinkF_rel"></a><a href="./red_rem_Me.html#MinkF_rel"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="org4770a30">
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<div class="alteqlabels" id="orgf90a88d">
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</div>
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@@ -1782,14 +1782,14 @@ We can now exploit gauge invariance
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which leaves \(F^{\mu \nu}\) invariant. In particular, we can choose
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the Lorenz gauge <a href="./emf_g_Lg.html#LorenzG">LorenzG</a> here expressed as
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</p>
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<div class="eqlabel" id="org02fe36f">
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<div class="eqlabel" id="org6a52a14">
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<p>
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<a id="LorenzG_4v"></a><a href="./red_rem_Me.html#LorenzG_4v"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="org162a638">
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<div class="alteqlabels" id="orgf61a44d">
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</div>
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@@ -1802,15 +1802,15 @@ the Lorenz gauge <a href="./emf_g_Lg.html#LorenzG">LorenzG</a> here expressed as
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Using the d'Alembertian operator introduced in <a href="./emf_g_Lg.html#dAl">dAl</a>
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here rewritten as
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</p>
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<div class="main div" id="org4189168">
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<div class="eqlabel" id="org347c7ab">
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<div class="main div" id="orgf152aad">
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<div class="eqlabel" id="orgf826c45">
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<p>
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<a id="dAl_4v"></a><a href="./red_rem_Me.html#dAl_4v"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="org373726e">
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<div class="alteqlabels" id="orgea79545">
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</div>
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@@ -1827,18 +1827,18 @@ here rewritten as
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we obtain the final form of
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</p>
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<div class="core div" id="org1c23781">
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<div class="core div" id="org7a7f039">
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<p>
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<b>Maxwell's equations</b> <i>(Lorenz gauge, 4-vector notation)</i>
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</p>
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<div class="eqlabel" id="org7c865aa">
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<div class="eqlabel" id="org5b1a56e">
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<p>
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<a id="Max_Lor_4v"></a><a href="./red_rem_Me.html#Max_Lor_4v"><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-link" viewBox="0 0 16 16">
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<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"/>
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<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"/>
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</svg></a>
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</p>
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<div class="alteqlabels" id="org5e9be4d">
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<div class="alteqlabels" id="orga66f820">
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</div>
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@@ -1874,7 +1874,7 @@ target="_blank">Creative Commons Attribution 4.0 International License</a>.
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</div>
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<div id="postamble" class="status">
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<p class="author">Author: Jean-Sébastien Caux</p>
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<p class="date">Created: 2022-03-15 Tue 08:10</p>
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<p class="date">Created: 2022-03-22 Tue 10:52</p>
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<p class="validation"></p>
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</div>
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