{"id":1748,"date":"2026-10-29T14:00:00","date_gmt":"2026-10-29T05:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1748"},"modified":"2026-10-26T14:24:23","modified_gmt":"2026-10-26T05:24:23","slug":"qs-doppler-cooling-friction-diffusion","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1748","title":{"rendered":"\u30c9\u30c3\u30d7\u30e9\u30fc\u51b7\u5374\u3067\u539f\u5b50\u3092\u9045\u304f\u3059\u308b\u4ed5\u7d44\u307f\u3068\u3001\u6b8b\u308b\u63fa\u3089\u304e"},"content":{"rendered":"<p>\u5149\u306b\u306f\u3001\u7269\u3092\u6e29\u3081\u308b\u50cd\u304d\u304c\u3042\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001\u5468\u6ce2\u6570\u3092\u9078\u3093\u3060\u30ec\u30fc\u30b6\u30fc\u3092\u539f\u5b50\u306b\u5f53\u3066\u308b\u3068\u3001\u539f\u5b50\u306e\u4e0d\u898f\u5247\u306a\u52d5\u304d\u3092\u5c0f\u3055\u304f\u3057\u3001\u975e\u5e38\u306b\u4f4e\u3044\u6e29\u5ea6\u306b\u8fd1\u3065\u3051\u3089\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u51b7\u3084\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u539f\u5b50\u306e\u5185\u90e8\u3092\u69cb\u6210\u3059\u308b\u96fb\u5b50\u305d\u306e\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u539f\u5b50\u304c\u7a7a\u9593\u3092\u52d5\u304d\u56de\u308b\u904b\u52d5\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u57fa\u672c\u3068\u306a\u308b\u30c9\u30c3\u30d7\u30e9\u30fc\u51b7\u5374\u3067\u306f\u3001\u52d5\u304f\u539f\u5b50\u304b\u3089\u898b\u305f\u5149\u306e\u5468\u6ce2\u6570\u306e\u5909\u5316\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u306a\u305c\u6e1b\u901f\u3059\u308b\u5411\u304d\u306e\u529b\u304c\u751f\u307e\u308c\u308b\u306e\u304b\u3001\u306a\u305c\u5149\u3092\u5f53\u3066\u7d9a\u3051\u3066\u3082\u52d5\u304d\u304c\u5b8c\u5168\u306b\u306f\u6b62\u307e\u3089\u306a\u3044\u306e\u304b\u30021988\u5e74\u306e\u30ca\u30c8\u30ea\u30a6\u30e0\u539f\u5b50\u306e\u5b9f\u9a13\u3082\u624b\u304c\u304b\u308a\u306b\u3001\u4ed5\u7d44\u307f\u3068\u6e29\u5ea6\u6e2c\u5b9a\u306e\u898b\u65b9\u3092\u305f\u3069\u308a\u307e\u3059\u3002<\/p>\n<section class=\"influvetor-quick-summary\" aria-label=\"\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>\u539f\u5b50\u304c\u5438\u53ce\u3057\u3084\u3059\u3044\u5468\u6ce2\u6570\u3088\u308a\u5c11\u3057\u4f4e\u3044\u5149\u3092\u4e21\u5074\u304b\u3089\u5f53\u3066\u308b\u3068\u3001\u52d5\u304d\u306b\u9006\u3089\u3046\u5074\u306e\u5149\u3092\u5438\u53ce\u3057\u3084\u3059\u304f\u306a\u308a\u3001\u5e73\u5747\u3068\u3057\u3066\u6e1b\u901f\u3057\u307e\u3059\u3002<\/li>\n<li>\u4e00\u65b9\u3001\u5149\u5b50\u3092\u5438\u53ce\u30fb\u653e\u51fa\u3059\u308b\u305f\u3073\u306b\u5c0f\u3055\u306a\u53cd\u52d5\u3082\u53d7\u3051\u307e\u3059\u3002\u6e1b\u901f\u3068\u4e0d\u898f\u5247\u306a\u904b\u52d5\u306e\u5897\u52a0\u304c\u91e3\u308a\u5408\u3046\u305f\u3081\u3001\u5358\u7d14\u306a\u30c9\u30c3\u30d7\u30e9\u30fc\u51b7\u5374\u306e\u30e2\u30c7\u30eb\u306b\u306f\u6e29\u5ea6\u306e\u4e0b\u9650\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>\u305d\u306e\u4e0b\u9650\u306f\u3001\u30e2\u30c7\u30eb\u306e\u6761\u4ef6\u306b\u57fa\u3065\u304f\u5024\u3067\u3059\u30021988\u5e74\u306b\u306f\u30ca\u30c8\u30ea\u30a6\u30e0\u539f\u5b50\u3067\u4e0b\u9650\u3092\u4e0b\u56de\u308b\u6e29\u5ea6\u304c\u89b3\u6e2c\u3055\u308c\u3001\u539f\u5b50\u306e\u5185\u90e8\u72b6\u614b\u3084\u5149\u306e\u504f\u5149\u307e\u3067\u8003\u3048\u308b\u5fc5\u8981\u6027\u304c\u6d6e\u304b\u3073\u4e0a\u304c\u308a\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u52d5\u304f\u539f\u5b50\u306b\u306f\u3001\u5411\u304b\u3063\u3066\u304f\u308b\u5149\u304c\u9ad8\u3044\u5468\u6ce2\u6570\u306b\u898b\u3048\u308b<\/h2>\n<p>\u539f\u5b50\u306f\u3001\u3069\u3093\u306a\u8272\u306e\u5149\u3067\u3082\u540c\u3058\u3088\u3046\u306b\u5438\u53ce\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5185\u90e8\u306e\u4e8c\u3064\u306e\u72b6\u614b\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u5dee\u306b\u5bfe\u5fdc\u3059\u308b\u3001\u7279\u5b9a\u306e\u5468\u6ce2\u6570\u4ed8\u8fd1\u306e\u5149\u3092\u5438\u53ce\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u5438\u53ce\u3057\u3084\u3059\u3044\u5468\u6ce2\u6570\u304c\u5171\u9cf4\u5468\u6ce2\u6570\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u3001\u539f\u5b50\u304c\u53f3\u3078\u52d5\u3044\u3066\u3044\u308b\u5834\u9762\u3092\u8003\u3048\u307e\u3059\u3002\u53f3\u5074\u304b\u3089\u5de6\u5411\u304d\u306b\u9032\u3093\u3067\u304f\u308b\u5149\u306f\u3001\u539f\u5b50\u306b\u3068\u3063\u3066\u5411\u304b\u3044\u98a8\u306e\u3088\u3046\u306a\u5411\u304d\u3067\u3059\u3002\u539f\u5b50\u304b\u3089\u898b\u308b\u3068\u3001\u3053\u306e\u5149\u306e\u5468\u6ce2\u6570\u306f\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u53cd\u5bfe\u306b\u3001\u5de6\u5074\u304b\u3089\u8ffd\u3044\u304b\u3051\u3066\u304f\u308b\u5149\u306e\u5468\u6ce2\u6570\u306f\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u5149\u306e\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u9759\u6b62\u3057\u305f\u539f\u5b50\u306e\u5171\u9cf4\u5468\u6ce2\u6570\u3088\u308a\u3001\u30ec\u30fc\u30b6\u30fc\u306e\u5468\u6ce2\u6570\u3092\u5c11\u3057\u4f4e\u304f\u3057\u3066\u304a\u304d\u307e\u3059\u3002\u3053\u306e\u8a2d\u5b9a\u3092\u8d64\u65b9\u96e2\u8abf\u3068\u547c\u3073\u307e\u3059\u3002\u300c\u8d64\u65b9\u300d\u306f\u5fc5\u305a\u8d64\u8272\u306e\u5149\u3092\u4f7f\u3046\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u306a\u304f\u3001\u5171\u9cf4\u306b\u5bfe\u3057\u3066\u5468\u6ce2\u6570\u3092\u4f4e\u304f\u3059\u308b\u3001\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<\/p>\n<p>\u539f\u5b50\u306e\u901f\u5ea6\u304c\u9069\u5207\u306a\u7bc4\u56f2\u306b\u3042\u308c\u3070\u3001\u5411\u304b\u3063\u3066\u304f\u308b\u5149\u306f\u30c9\u30c3\u30d7\u30e9\u30fc\u52b9\u679c\u306b\u3088\u3063\u3066\u5171\u9cf4\u306b\u8fd1\u3065\u304d\u3001\u8ffd\u3044\u304b\u3051\u308b\u5149\u306f\u5171\u9cf4\u304b\u3089\u9060\u3056\u304b\u308a\u307e\u3059\u3002\u539f\u5b50\u306f\u524d\u8005\u3092\u591a\u304f\u5438\u53ce\u3057\u3001\u5149\u304c\u9032\u3080\u5de6\u5411\u304d\u306e\u904b\u52d5\u91cf\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u53f3\u5411\u304d\u306e\u904b\u52d5\u304c\u6291\u3048\u3089\u308c\u307e\u3059\u3002\u539f\u5b50\u304c\u5de6\u3078\u52d5\u3051\u3070\u3001\u5de6\u53f3\u306e\u5f79\u5272\u304c\u5165\u308c\u66ff\u308f\u308a\u307e\u3059\u3002<\/p>\n<p>\u5c0f\u3055\u306a\u901f\u5ea6\u306e\u7bc4\u56f2\u3067\u306f\u3001\u3053\u306e\u5e73\u5747\u7684\u306a\u529b\u3092\u901f\u5ea6\u306b\u6bd4\u4f8b\u3059\u308b\u62b5\u6297\u3068\u3057\u3066\u8fd1\u4f3c\u3067\u304d\u307e\u3059\u3002\u901f\u304f\u52d5\u304f\u307b\u3069\u5f37\u304f\u62b5\u6297\u3055\u308c\u308b\u3001\u7c98\u308a\u306e\u3042\u308b\u6db2\u4f53\u306e\u4e2d\u306e\u3088\u3046\u306a\u632f\u308b\u821e\u3044\u3067\u3059\u3002\u4e09\u65b9\u5411\u306b\u5411\u304b\u3044\u5408\u3046\u5149\u3092\u914d\u7f6e\u3057\u305f\u7cfb\u304c\u300c\u5149\u30e2\u30e9\u30bb\u30b9\u300d\u3068\u547c\u3070\u308c\u308b\u306e\u306f\u3001\u3053\u306e\u305f\u3081\u3067\u3059\u3002<\/p>\n<h2>\u6e1b\u901f\u3055\u305b\u308b\u5149\u304c\u3001\u540c\u6642\u306b\u63fa\u3089\u304e\u3082\u751f\u3080<\/h2>\n<p>\u5e73\u5747\u306e\u529b\u3060\u3051\u3092\u898b\u308c\u3070\u3001\u539f\u5b50\u306f\u3084\u304c\u3066\u6b62\u307e\u308a\u305d\u3046\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u5149\u3068\u539f\u5b50\u306e\u3084\u308a\u53d6\u308a\u306f\u3001\u6ed1\u3089\u304b\u306a\u9023\u7d9a\u52d5\u4f5c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u539f\u5b50\u306f\u5149\u5b50\u3092\u4e00\u3064\u305a\u3064\u5438\u53ce\u3057\u3001\u52b1\u8d77\u3055\u308c\u305f\u72b6\u614b\u304b\u3089\u5149\u5b50\u3092\u653e\u51fa\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3073\u306b\u3001\u5c0f\u3055\u306a\u53cd\u52d5\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n<p>\u81ea\u767a\u653e\u51fa\u3067\u306f\u3001\u3069\u306e\u5411\u304d\u306b\u5149\u5b50\u304c\u98db\u3076\u304b\u304c\u6bce\u56de\u5909\u308f\u308a\u307e\u3059\u3002\u591a\u6570\u306e\u51fa\u6765\u4e8b\u3092\u5e73\u5747\u3057\u305f\u53cd\u52d5\u304c\u30bc\u30ed\u3067\u3082\u3001\u4e00\u500b\u305a\u3064\u306e\u539f\u5b50\u306b\u306f\u4e0d\u898f\u5247\u306a\u901f\u5ea6\u306e\u5909\u5316\u304c\u6b8b\u308a\u307e\u3059\u3002\u5438\u53ce\u306e\u56de\u6570\u3084\u30bf\u30a4\u30df\u30f3\u30b0\u306b\u3082\u63fa\u3089\u304e\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3046\u3057\u3066\u904b\u52d5\u91cf\u306e\u5206\u5e03\u304c\u5e83\u304c\u308b\u3053\u3068\u3092\u3001\u904b\u52d5\u91cf\u62e1\u6563\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<p>\u30c9\u30c3\u30d7\u30e9\u30fc\u51b7\u5374\u306e\u6e29\u5ea6\u306f\u3001\u901f\u5ea6\u3092\u6291\u3048\u308b\u50cd\u304d\u3068\u3001\u3053\u306e\u62e1\u6563\u3068\u306e\u91e3\u308a\u5408\u3044\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002\u539f\u5b50\u306e\u96c6\u56e3\u304c\u540c\u3058\u5411\u304d\u306b\u6d41\u308c\u308b\u901f\u3055\u3092\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\u3068\u3001\u96c6\u56e3\u306e\u4e2d\u3067\u306e\u4e0d\u898f\u5247\u306a\u901f\u5ea6\u306e\u5e83\u304c\u308a\u3092\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\u306f\u5225\u3067\u3059\u3002\u51b7\u5374\u3067\u6ce8\u76ee\u3059\u308b\u306e\u306f\u5f8c\u8005\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u9055\u3044\u306f\u3001\u51b7\u5374\u3068\u9589\u3058\u8fbc\u3081\u3092\u533a\u5225\u3059\u308b\u3046\u3048\u3067\u3082\u5927\u5207\u3067\u3059\u3002\u7406\u60f3\u7684\u306a\u5149\u30e2\u30e9\u30bb\u30b9\u306e\u62b5\u6297\u306f\u3001\u52d5\u304d\u306b\u9006\u3089\u3063\u3066\u50cd\u304d\u307e\u3059\u3002\u4e2d\u5fc3\u304b\u3089\u305a\u308c\u305f\u539f\u5b50\u3092\u4e2d\u5fc3\u3078\u5f15\u304d\u623b\u3059\u529b\u3068\u306f\u7570\u306a\u308b\u305f\u3081\u3001\u52d5\u304d\u3092\u9045\u304f\u3067\u304d\u3066\u3082\u3001\u305d\u308c\u3060\u3051\u3067\u539f\u5b50\u3092\u4e00\u5b9a\u306e\u5834\u6240\u306b\u4fdd\u3066\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>\u30c9\u30c3\u30d7\u30e9\u30fc\u9650\u754c\u306f\u3001\u3069\u306e\u6761\u4ef6\u304b\u3089\u51fa\u3066\u304f\u308b\u306e\u304b<\/h2>\n<p>\u539f\u5b50\u3092\u4e8c\u3064\u306e\u5185\u90e8\u72b6\u614b\u3067\u8fd1\u4f3c\u3057\u3001\u5149\u304c\u5f31\u3044\u5834\u5408\u306e\u5358\u7d14\u306a\u30e2\u30c7\u30eb\u3067\u306f\u3001\u30ec\u30fc\u30b6\u30fc\u306e\u96e2\u8abf\u3092\u8abf\u6574\u3057\u305f\u3068\u304d\u306e\u6700\u4f4e\u6e29\u5ea6\u306f\u3001\u6b21\u306e\u5f0f\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><strong>T<sub>D<\/sub> = \u210f\u0393 \/ (2k<sub>B<\/sub>)<\/strong><\/p>\n<p>\u210f\u306f\u63db\u7b97\u30d7\u30e9\u30f3\u30af\u5b9a\u6570\u3001k<sub>B<\/sub>\u306f\u30dc\u30eb\u30c4\u30de\u30f3\u5b9a\u6570\u3067\u3059\u3002\u0393\u306f\u5149\u3092\u5438\u53ce\u3059\u308b\u9077\u79fb\u306e\u81ea\u7136\u5e45\u3092\u3001\u89d2\u5468\u6ce2\u6570\u3067\u8868\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u52b1\u8d77\u72b6\u614b\u306e\u5bff\u547d\u304c\u6709\u9650\u306a\u306e\u3067\u3001\u539f\u5b50\u304c\u5fdc\u7b54\u3059\u308b\u5468\u6ce2\u6570\u306b\u3082\u5e45\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5e45\u304c\u6e29\u5ea6\u306e\u5c3a\u5ea6\u306b\u7d50\u3073\u4ed8\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u30701988\u5e74\u306e\u8ad6\u6587\u304c\u6271\u3046\u30ca\u30c8\u30ea\u30a6\u30e0\u306eD\u7dda\u3067\u306f\u3001\u0393 = 2\u03c0 \u00d7 10 MHz\u3068\u3059\u308b\u3068\u3001T<sub>D<\/sub>\u306f\u7d04240 \u00b5K\u3067\u3059\u30021 \u00b5K\u306f100\u4e07\u5206\u306e1 K\u306a\u306e\u3067\u3001\u3053\u308c\u306f\u7d76\u5bfe\u6e29\u5ea6\u3067\u7d040.00024 K\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u5f0f\u3078\u4ee3\u5165\u3059\u308b\u3068\u304d\u306f\u300110 MHz\u305d\u306e\u3082\u306e\u3068\u30012\u03c0\u3092\u639b\u3051\u305f\u89d2\u5468\u6ce2\u6570\u306e\u5e45\u3092\u53d6\u308a\u9055\u3048\u306a\u3044\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30e2\u30c7\u30eb\u3067\u6700\u4f4e\u6e29\u5ea6\u306b\u306a\u308b\u306e\u306f\u3001\u30ec\u30fc\u30b6\u30fc\u306e\u89d2\u5468\u6ce2\u6570\u3092\u5171\u9cf4\u3088\u308a\u0393\/2\u3060\u3051\u4f4e\u304f\u3057\u305f\u3068\u304d\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u5149\u3092\u5f31\u304f\u3059\u308b\u307b\u3069\u3001\u307e\u305f\u5468\u6ce2\u6570\u3092\u4f4e\u304f\u3059\u308b\u307b\u3069\u3001\u969b\u9650\u306a\u304f\u51b7\u3048\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3069\u3061\u3089\u3082\u539f\u5b50\u304c\u5149\u3092\u6563\u4e71\u3059\u308b\u983b\u5ea6\u3084\u901f\u5ea6\u306b\u5bfe\u3059\u308b\u529b\u306e\u5909\u5316\u3092\u5909\u3048\u308b\u305f\u3081\u3001\u6e1b\u901f\u3068\u62e1\u6563\u3092\u5408\u308f\u305b\u3066\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u6e29\u5ea6\u8a08\u306e\u4ee3\u308f\u308a\u306b\u3001\u539f\u5b50\u304c\u5c4a\u304f\u6642\u523b\u3092\u898b\u308b<\/h2>\n<p>\u3053\u306e\u3088\u3046\u306a\u6e29\u5ea6\u306f\u3001\u666e\u901a\u306e\u6e29\u5ea6\u8a08\u3092\u5dee\u3057\u8fbc\u3093\u3067\u6e2c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Lett\u3001Phillips\u3089\u306b\u3088\u308b1988\u5e74\u306e\u5b9f\u9a13\u3067\u306f\u3001\u51b7\u5374\u5149\u3092\u6d88\u3057\u305f\u5f8c\u306e\u539f\u5b50\u306e\u52d5\u304d\u3092\u89b3\u6e2c\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u4e00\u3064\u304c\u3001\u98db\u884c\u6642\u9593\u6cd5\u3001TOF\u3067\u3059\u3002<\/p>\n<p>\u51b7\u5374\u3055\u308c\u3066\u3044\u305f\u539f\u5b50\u306e\u96f2\u306e\u4e0b\u306b\u3001\u691c\u51fa\u7528\u306e\u5149\u3092\u7f6e\u304d\u307e\u3059\u3002\u51b7\u5374\u5149\u3092\u6d88\u3059\u3068\u3001\u539f\u5b50\u306f\u3082\u3068\u3082\u3068\u6301\u3063\u3066\u3044\u305f\u901f\u5ea6\u3068\u91cd\u529b\u306b\u5f93\u3063\u3066\u79fb\u52d5\u3057\u307e\u3059\u3002\u691c\u51fa\u5149\u306e\u9818\u57df\u306b\u6765\u305f\u539f\u5b50\u304c\u767a\u3059\u308b\u86cd\u5149\u3092\u6642\u523b\u3054\u3068\u306b\u8a18\u9332\u3059\u308c\u3070\u3001\u3069\u306e\u6642\u9593\u5e2f\u306b\u591a\u304f\u306e\u539f\u5b50\u304c\u5230\u7740\u3057\u305f\u304b\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u539f\u5b50\u304c\u6700\u521d\u304b\u3089\u6301\u3063\u3066\u3044\u305f\u901f\u5ea6\u306e\u5206\u5e03\u304c\u9055\u3048\u3070\u3001\u3053\u306e\u5230\u7740\u6642\u523b\u306e\u5206\u5e03\u3082\u5909\u308f\u308a\u307e\u3059\u3002\u8a08\u7b97\u3067\u306f\u521d\u671f\u306e\u901f\u5ea6\u3092\u4e09\u6b21\u5143\u306e\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u30fb\u30dc\u30eb\u30c4\u30de\u30f3\u5206\u5e03\u3067\u8868\u3059\u3068\u4eee\u5b9a\u3057\u3001\u6e2c\u5b9a\u3057\u305f\u539f\u5b50\u96f2\u306e\u5e83\u304c\u308a\u3001\u91cd\u529b\u3001\u5149\u306e\u5f37\u5ea6\u5206\u5e03\u3001\u691c\u51fa\u9818\u57df\u306e\u5f62\u3082\u8003\u616e\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u8a08\u7b97\u3068\u6e2c\u5b9a\u7d50\u679c\u3092\u6bd4\u3079\u3001\u6e29\u5ea6\u3092\u6c42\u3081\u3066\u3044\u307e\u3059\u3002\u5358\u306b\u300c\u843d\u4e0b\u3059\u308b\u306e\u304c\u9045\u3044\u304b\u3089\u4f4e\u6e29\u300d\u3068\u5224\u5b9a\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<figure class=\"wp-block-image size-full\" style=\"margin:1.5em 0;\"><a href=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-doppler-cooling-friction-diffusion-source-figure-1-d2c2c9602118.png\"><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-doppler-cooling-friction-diffusion-source-figure-1-d2c2c9602118.png\" style=\"display:block;width:100%;max-width:700px;height:auto;\" alt=\"\u51b7\u5374\u5149\u3092\u6d88\u3057\u3066\u304b\u3089\u306e\u6642\u9593\u3068\u86cd\u5149\u4fe1\u53f7\u306e\u95a2\u4fc2\u3002\u5b9f\u9a13\u70b9\u306f40\u30de\u30a4\u30af\u30ed\u30b1\u30eb\u30d3\u30f3\u306e\u8a08\u7b97\u66f2\u7dda\u306b\u8fd1\u304f\u3001240\u30de\u30a4\u30af\u30ed\u30b1\u30eb\u30d3\u30f3\u306e\u66f2\u7dda\u3068\u306f\u30d4\u30fc\u30af\u4f4d\u7f6e\u3068\u5f62\u304c\u7570\u306a\u308b\u3002\" \/><\/a><figcaption>Lett et al., Physical Review Letters 61, 169\u2013172 (1988), p.170, Fig.1\u304b\u3089\u30b0\u30e9\u30d5\u90e8\u5206\u3092\u629c\u7c8b\u3002\u6a2a\u8ef8\u306f\u6642\u9593\uff08ms\uff09\u3001\u7e26\u8ef8\u306f\u898f\u683c\u5316\u3057\u305f\u86cd\u5149\u4fe1\u53f7\u300240 \u00b5K\u306e\u66f2\u7dda\u4ed8\u8fd1\u306e\u5e2f\u306f\u3001\u88c5\u7f6e\u306e\u5e7e\u4f55\u5b66\u7684\u6761\u4ef6\u306e\u4e0d\u78ba\u304b\u3055\u306b\u3088\u308b\u8a08\u7b97\u306e\u5e45\u3092\u8868\u3059\u3002\u00a9 1988 The American Physical Society. <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.61.169\">\u539f\u8ad6\u6587<\/a><\/figcaption><\/figure>\n<p>\u4e0a\u306e\u56f3\u306f\u3001\u539f\u5b50\u96f2\u3068\u691c\u51fa\u9818\u57df\u306e\u4e2d\u5fc3\u30921.1 cm\u96e2\u3057\u300140\u56de\u306e\u6e2c\u5b9a\u3092\u5e73\u5747\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u6e2c\u5b9a\u70b9\u306f\u3001\u6e29\u5ea6\u309240 \u00b5K\u3068\u3057\u305f\u8a08\u7b97\u66f2\u7dda\u306b\u8fd1\u3044\u5f62\u3092\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001240 \u00b5K\u3068\u3057\u305f\u66f2\u7dda\u3067\u306f\u3001\u30d4\u30fc\u30af\u304c\u65e9\u3044\u6642\u523b\u306b\u73fe\u308c\u3001\u5f8c\u65b9\u3078\u9577\u304f\u5e83\u304c\u3063\u3066\u3044\u307e\u3059\u3002\u6bd4\u8f03\u3057\u3066\u3044\u308b\u306e\u306f\u4fe1\u53f7\u306e\u5927\u304d\u3055\u3060\u3051\u3067\u306a\u304f\u3001\u6642\u9593\u306b\u5bfe\u3059\u308b\u5f62\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u3001\u56f3\u306b\u793a\u3057\u305f40 \u00b5K\u306e\u8a08\u7b97\u3068\u3001\u8ad6\u6587\u5168\u4f53\u3067\u5831\u544a\u3055\u308c\u305f\u6700\u4f4e\u6e29\u5ea643 \u00b1 20 \u00b5K\u306f\u3001\u540c\u3058\u6570\u5b57\u306e\u5225\u8868\u8a18\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f8c\u8005\u306f\u8907\u6570\u306e\u6e2c\u5b9a\u306e\u3070\u3089\u3064\u304d\u3084\u3001\u88c5\u7f6e\u306e\u5e7e\u4f55\u5b66\u7684\u6761\u4ef6\u3001\u8a08\u7b97\u306b\u4f34\u3046\u4e0d\u78ba\u304b\u3055\u3092\u542b\u3081\u305f\u8a55\u4fa1\u3067\u3059\u3002\u00b120 \u00b5K\u306f1\u6a19\u6e96\u504f\u5dee\u3068\u3057\u3066\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u7814\u7a76\u8005\u3089\u306f\u3001\u4e0a\u65b9\u3078\u5c4a\u304f\u539f\u5b50\u3001\u4e0b\u65b9\u3078\u843d\u3061\u308b\u9593\u306e\u6a2a\u65b9\u5411\u306e\u5e83\u304c\u308a\u3001\u5149\u3092\u6d88\u3057\u305f\u5f8c\u306b\u518d\u3073\u6355\u3089\u3048\u3089\u308c\u308b\u539f\u5b50\u306e\u5272\u5408\u3082\u8abf\u3079\u307e\u3057\u305f\u3002\u7570\u306a\u308b\u52d5\u304d\u3084\u89b3\u6e2c\u91cf\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u4e00\u3064\u306e\u6e2c\u5b9a\u624b\u6cd5\u3060\u3051\u304c\u4f4e\u3044\u6e29\u5ea6\u3092\u793a\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u3092\u78ba\u304b\u3081\u3066\u3044\u307e\u3059\u3002\u3044\u305a\u308c\u3082\u3001\u51b7\u5374\u5149\u304b\u3089\u89e3\u653e\u3055\u308c\u305f\u539f\u5b50\u306e\u904b\u52d5\u3092\u6e2c\u3063\u3066\u3044\u308b\u70b9\u306b\u306f\u7559\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>\u4e0b\u9650\u3092\u4e0b\u56de\u3063\u305f\u3068\u304d\u306b\u3001\u898b\u76f4\u3059\u3079\u304d\u524d\u63d0<\/h2>\n<p>43 \u00b1 20 \u00b5K\u3068\u3044\u3046\u7d50\u679c\u306f\u3001\u5358\u7d14\u306a\u30e2\u30c7\u30eb\u306e\u30c9\u30c3\u30d7\u30e9\u30fc\u9650\u754c240 \u00b5K\u3092\u4e0b\u56de\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u539f\u5b50\u306e\u904b\u52d5\u3084\u6e29\u5ea6\u306e\u8003\u3048\u65b9\u304c\u7121\u52b9\u306b\u306a\u3063\u305f\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e0b\u9650\u3092\u8a08\u7b97\u3059\u308b\u3068\u304d\u306b\u3001\u3069\u306e\u52b9\u679c\u3092\u53d6\u308a\u5165\u308c\u3001\u3069\u306e\u52b9\u679c\u3092\u7701\u3044\u3066\u3044\u305f\u304b\u304c\u554f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>1988\u5e74\u306e\u8ad6\u6587\u306f\u3001\u7d50\u679c\u3092\u307e\u3060\u8aac\u660e\u3067\u304d\u3066\u3044\u306a\u3044\u3068\u660e\u8a18\u3057\u305f\u3046\u3048\u3067\u3001\u4e8c\u72b6\u614b\u30fb\u5f31\u3044\u5149\u3068\u3044\u3046\u8fd1\u4f3c\u3084\u3001\u4e09\u6b21\u5143\u306e\u504f\u5149\u3092\u6271\u3063\u3066\u3044\u306a\u3044\u70b9\u306a\u3069\u3092\u6319\u3052\u3066\u3044\u307e\u3059\u3002\u5b9f\u9a13\u3067\u306f\u78c1\u5834\u3084\u504f\u5149\u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u6e29\u5ea6\u304c\u5909\u308f\u3063\u3066\u304a\u308a\u3001\u539f\u5b50\u3092\u5358\u7d14\u306a\u4e8c\u72b6\u614b\u3068\u3057\u3066\u6271\u3046\u3060\u3051\u3067\u306f\u8db3\u308a\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u6642\u70b9\u306e\u5831\u544a\u3092\u3001\u5f8c\u306e\u51b7\u5374\u6a5f\u69cb\u307e\u3067\u89e3\u660e\u6e08\u307f\u306e\u8ad6\u6587\u3068\u3057\u3066\u8aad\u3080\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u51b7\u5374\u65b9\u5f0f\u3092\u6bd4\u3079\u308b\u3068\u304d\u306f\u3001\u307e\u305a\u539f\u5b50\u3068\u9077\u79fb\u3001\u5149\u306e\u5f37\u3055\u3001\u96e2\u8abf\u3001\u504f\u5149\u3001\u78c1\u5834\u306e\u6761\u4ef6\u3092\u305d\u308d\u3048\u3066\u898b\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u6e29\u5ea6\u304c\u3069\u306e\u904b\u52d5\u304b\u3089\u63a8\u5b9a\u3055\u308c\u3001\u521d\u671f\u306e\u96f2\u306e\u5f62\u3084\u91cd\u529b\u304c\u3069\u3046\u6271\u308f\u308c\u305f\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u300c\u9650\u754c\u3088\u308a\u4f4e\u3044\u300d\u3068\u3044\u3046\u7d50\u679c\u306f\u3001\u6570\u5024\u306e\u9a5a\u304d\u3060\u3051\u3067\u306a\u304f\u3001\u30e2\u30c7\u30eb\u306e\u524d\u63d0\u3068\u6e2c\u5b9a\u306e\u4e21\u65b9\u3092\u8aad\u307f\u76f4\u3059\u5165\u53e3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ul>\n<li>P. D. Lett et al., <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/PhysRevLett.61.169\">Observation of Atoms Laser Cooled below the Doppler Limit<\/a>, Physical Review Letters 61, 169\u2013172 (1988). \u6e29\u5ea6\u5f0f\u3001\u30ca\u30c8\u30ea\u30a6\u30e0\u306e\u6761\u4ef6\u3001\u56db\u3064\u306e\u6e2c\u5b9a\u6cd5\u3001\u56f31\u304a\u3088\u3073\u5f53\u6642\u306e\u89e3\u91c8\u3002<\/li>\n<li>William D. Phillips, <a href=\"https:\/\/www.nobelprize.org\/uploads\/2018\/06\/phillips-lecture.pdf\">Laser cooling and trapping of neutral atoms<\/a>, Nobel Lecture (1997), printed pp.215\u2013220. \u30c9\u30c3\u30d7\u30e9\u30fc\u51b7\u5374\u3001\u5149\u30e2\u30e9\u30bb\u30b9\u3068\u6e29\u5ea6\u6e2c\u5b9a\u306e\u8aac\u660e\u3002<\/li>\n<li>NIST, <a href=\"https:\/\/www.nist.gov\/nist-and-nobel\/bill-phillips\/context-discovery-bill-phillips\">Context of Discovery: Bill Phillips<\/a>. \u7814\u7a76\u306e\u80cc\u666f\u3002\u539f\u8ad6\u6587\u3068\u540c\u3058\u7814\u7a76\u3092\u632f\u308a\u8fd4\u308b\u89e3\u8aac\u3067\u3042\u308a\u3001\u72ec\u7acb\u3057\u305f\u518d\u73fe\u5b9f\u9a13\u306e\u5831\u544a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5149\u306b\u306f\u3001\u7269\u3092\u6e29\u3081\u308b\u50cd\u304d\u304c\u3042\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001\u5468\u6ce2\u6570\u3092\u9078\u3093\u3060\u30ec\u30fc\u30b6\u30fc\u3092\u539f\u5b50\u306b\u5f53\u3066\u308b\u3068\u3001\u539f\u5b50\u306e\u4e0d\u898f\u5247\u306a\u52d5\u304d\u3092\u5c0f\u3055\u304f\u3057\u3001\u975e\u5e38\u306b\u4f4e\u3044\u6e29\u5ea6\u306b\u8fd1\u3065\u3051\u3089\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u51b7\u3084\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u539f\u5b50\u306e\u5185\u90e8\u3092\u69cb\u6210\u3059\u308b\u96fb\u5b50\u305d\u306e\u3082\u306e\u3067\u306f\u306a\u304f [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1746,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[32],"tags":[357],"class_list":["post-1748","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-semiconductors-electronics","tag-doppler-cooling"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-doppler-cooling-friction-diffusion-featured-0e4e487b0f71.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1748"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1748\/revisions"}],"predecessor-version":[{"id":1749,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1748\/revisions\/1749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1746"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}