{"id":209405,"date":"2024-03-21T14:07:50","date_gmt":"2024-03-21T14:07:50","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e8%87%aa%e7%99%ba%e7%9a%84%e5%af%be%e7%a7%b0%e6%80%a7%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%bf%9c%e7%94%a8\/"},"modified":"2024-05-17T15:12:09","modified_gmt":"2024-05-17T15:12:09","slug":"%e8%87%aa%e7%99%ba%e7%9a%84%e5%af%be%e7%a7%b0%e6%80%a7%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%bf%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e8%87%aa%e7%99%ba%e7%9a%84%e5%af%be%e7%a7%b0%e6%80%a7%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%bf%9c%e7%94%a8\/","title":{"rendered":"\u81ea\u767a\u7684\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306e\u65b9\u7a0b\u5f0f | \u6982\u8981\u3068\u5fdc\u7528"},"content":{"rendered":"<p 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breaking\u3001SSB\uff09\u3068\u306f\u3001\u7269\u7406\u7cfb\u304c\u3042\u308b\u5bfe\u79f0\u6027\u3092\u6301\u3064\u3051\u308c\u3069\u3082\u3001\u305d\u306e\u57fa\u5e95\u72b6\u614b\u304c\u305d\u306e\u5bfe\u79f0\u6027\u3092\u6301\u305f\u306a\u3044\u73fe\u8c61\u3092\u6307\u3057\u307e\u3059\u3002\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3067\u306f\u5bfe\u79f0\u3060\u3051\u308c\u3069\u3082\u3001\u5b9f\u969b\u306b\u89b3\u6e2c\u3055\u308c\u308b\u72b6\u6cc1\u3067\u306f\u305d\u306e\u5bfe\u79f0\u6027\u304c\u898b\u3048\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u96fb\u78c1\u6c17\u5b66\u306b\u304a\u3051\u308b\u81ea\u767a\u7684\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306e\u4ee3\u8868\u4f8b\u304c\u3001\u30d2\u30c3\u30b0\u30b9\u6a5f\u69cb\u3067\u3059\u3002\u30d2\u30c3\u30b0\u30b9\u6a5f\u69cb\u3067\u306f\u3001\u7279\u5b9a\u306e\u30b9\u30ab\u30e9\u30fc\u5834\uff08\u30d2\u30c3\u30b0\u30b9\u5834\uff09\u304c\u975e\u96f6\u306e\u771f\u7a7a\u671f\u5f85\u5024\u3092\u6301\u3064\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u6a19\u6e96\u6a21\u578b\u306e\u30b2\u30fc\u30b8\u5bfe\u79f0\u6027\u304c\u81ea\u767a\u7684\u306b\u7834\u308c\u307e\u3059\u3002\u3053\u306e\u73fe\u8c61\u306f\u7d20\u7c92\u5b50\u306b\u8cea\u91cf\u3092\u4e0e\u3048\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3068\u3057\u3066\u7406\u89e3\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u81ea\u767a\u7684\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306e\u65b9\u7a0b\u5f0f<\/h2>\n<p>\u81ea\u767a\u7684\u5bfe\u79f0\u6027\u306e\u7834\u308c\u306b\u95a2\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u7a0b\u5f0f\u306e\u4e00\u3064\u306f\u3001\u30e9\u30b0\u30e9\u30f3\u30b8\u30a2\u30f3\u3067\u3059\u3002\u5bfe\u8c61\u3068\u3059\u308b\u7269\u7406\u7cfb\u306e\u30e9\u30b0\u30e9\u30f3\u30b8\u30a2\u30f3 <em>L<\/em> \u306f\u4e00\u822c\u306b\u6b21\u306e\u3088\u3046\u306b\u8868\u73fe\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\\[ \\mathcal{L} = \\frac{1}{2} \\partial_{\\mu} \\phi \\partial^{\\mu} \\phi &#8211; V(\\phi) \\]<\/p>\n<p>\u3053\u3053\u3067\u3001\\(\\phi\\) \u306f\u30b9\u30ab\u30e9\u30fc\u5834\u3001\\(V(\\phi)\\) \u306f\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3067\u3059\u3002$V(\\phi)$ \u304c\u4ee5\u4e0b\u306e\u5f62\u5f0f\u3067\u3042\u308b\u3068\u4eee\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n<p>\\[ V(\\phi) = -\\frac{1}{2} \\mu^2 \\phi^2 + \\frac{1}{4} \\lambda \\phi^4 \\]<\/p>\n<p>\u3053\u3053\u3067\u3001\\(\\mu\\) \u3068 \\(\\lambda\\) \u306f\u6b63\u306e\u5b9a\u6570\u3067\u3059\u3002\u3053\u306e\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306f\u300c\u304f\u307c\u307f\u300d\u306e\u5f62\u3092\u3057\u3066\u3044\u307e\u3059\u3002\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306e\u6700\u5c0f\u5024\u306f \\(\\phi = \\pm \\sqrt{\\frac{\\mu^2}{\\lambda}}\\) 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