{"id":1764,"date":"2026-10-29T18:00:00","date_gmt":"2026-10-29T09:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1764"},"modified":"2026-10-26T18:23:13","modified_gmt":"2026-10-26T09:23:13","slug":"qs-johnson-noise-thermometry-correlation","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1764","title":{"rendered":"\u30b8\u30e7\u30f3\u30bd\u30f3\u96d1\u97f3\u6e29\u5ea6\u8a08\u3067\u3001\u5171\u901a\u306e\u63fa\u3089\u304e\u3092\u6e29\u5ea6\u306b\u7d50\u3073\u3064\u3051\u308b"},"content":{"rendered":"<p>\u62b5\u6297\u306b\u5916\u304b\u3089\u96fb\u5727\u3092\u304b\u3051\u306a\u304f\u3066\u3082\u3001\u305d\u306e\u4e21\u7aef\u306b\u306f\u5c0f\u3055\u306a\u96fb\u5727\u306e\u63fa\u3089\u304e\u304c\u73fe\u308c\u307e\u3059\u3002\u96fb\u8377\u3092\u904b\u3076\u7c92\u5b50\u306e\u71b1\u904b\u52d5\u306b\u3088\u308b\u300c\u30b8\u30e7\u30f3\u30bd\u30f3\u96d1\u97f3\u300d\u3067\u3059\u3002\u96fb\u5b50\u56de\u8def\u3067\u306f\u53d6\u308a\u9664\u304d\u305f\u3044\u96d1\u97f3\u3067\u3059\u304c\u3001\u63fa\u3089\u304e\u306e\u5927\u304d\u3055\u306b\u6e29\u5ea6\u306e\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6e29\u5ea6\u8a08\u306e\u4fe1\u53f7\u3068\u3057\u3066\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u5fae\u5f31\u306a\u96fb\u5727\u3092\u8aad\u307f\u53d6\u308b\u5897\u5e45\u5668\u306b\u3082\u96d1\u97f3\u304c\u3042\u308a\u307e\u3059\u3002\u89b3\u6e2c\u3057\u305f\u63fa\u3089\u304e\u306e\u3046\u3061\u3001\u62b5\u6297\u306b\u7531\u6765\u3059\u308b\u306e\u306f\u3069\u308c\u3060\u3051\u3067\u3057\u3087\u3046\u304b\u3002\u30b8\u30e7\u30f3\u30bd\u30f3\u96d1\u97f3\u6e29\u5ea6\u8a08\uff08JNT\uff09\u306f\u3001\u540c\u3058\u62b5\u6297\u3092\u4e8c\u3064\u306e\u7d4c\u8def\u3067\u6e2c\u308a\u3001\u3055\u3089\u306b\u57fa\u6e96\u4fe1\u53f7\u3068\u4ea4\u4e92\u306b\u6bd4\u8f03\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u306b\u5411\u304d\u5408\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f2024\u5e74\u306e\u30ec\u30d3\u30e5\u30fc\u8ad6\u6587\u3092\u3082\u3068\u306b\u3001\u76f8\u95a2\u6e2c\u5b9a\u3068\u91cf\u5b50\u96fb\u5727\u96d1\u97f3\u6e90\u306e\u5f79\u5272\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>\u540c\u3058\u62b5\u6297\u306e\u96fb\u5727\u3092\u4e8c\u3064\u306e\u7d4c\u8def\u3067\u6e2c\u3063\u3066\u7a4d\u3092\u5e73\u5747\u3059\u308b\u3068\u3001\u4e21\u65b9\u306b\u5171\u901a\u3059\u308b\u71b1\u96d1\u97f3\u3092\u53d6\u308a\u51fa\u305b\u307e\u3059\u3002\u72ec\u7acb\u306a\u5897\u5e45\u5668\u96d1\u97f3\u306e\u5e73\u5747\u5bc4\u4e0e\u306f\u6e1b\u308a\u307e\u3059\u304c\u3001\u6709\u9650\u6642\u9593\u306e\u3070\u3089\u3064\u304d\u3084\u5171\u901a\u306e\u59a8\u5bb3\u306f\u6b8b\u308a\u307e\u3059\u3002<\/li>\n<li>\u6e2c\u5b9a\u5bfe\u8c61\u3068\u57fa\u6e96\u3092\u540c\u3058\u56de\u8def\u3078\u4ea4\u4e92\u306b\u3064\u306a\u304e\u3001\u63fa\u3089\u304e\u306e\u5927\u304d\u3055\u306e\u6bd4\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u5897\u5e45\u7387\u306e\u5909\u5316\u306a\u3069\u306e\u5f71\u97ff\u3092\u6291\u3048\u307e\u3059\u3002<\/li>\n<li>\u91cf\u5b50\u96fb\u5727\u96d1\u97f3\u6e90QVNS\u3092\u57fa\u6e96\u306b\u3059\u308b\u3068\u3001\u65e2\u77e5\u306e\u6e29\u5ea6\u3068\u306e\u6bd4\u8f03\u306b\u983c\u3089\u305a\u6e29\u5ea6\u3092\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u5b9f\u969b\u306e\u7cbe\u5ea6\u306b\u306f\u3001\u914d\u7dda\u3001\u975e\u7dda\u5f62\u6027\u3001\u62b5\u6297\u306e\u6e2c\u5b9a\u3001\u7a4d\u7b97\u6642\u9593\u306e\u691c\u8a0e\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u71b1\u96d1\u97f3\u306e\u5927\u304d\u3055\u3092\u3001\u6e29\u5ea6\u306b\u8aad\u307f\u66ff\u3048\u308b<\/h2>\n<p>\u62b5\u6297\u3092\u7d14\u7c8b\u306a\u62b5\u6297R\u3068\u3057\u3066\u6271\u3048\u3001\u5468\u6ce2\u6570\u304c\u5341\u5206\u4f4e\u3044\u306a\u3069\u306e\u6761\u4ef6\u3067\u306f\u3001\u71b1\u96d1\u97f3\u306e\u96fb\u5727\u306e\u30d1\u30ef\u30fc\u30b9\u30da\u30af\u30c8\u30eb\u5bc6\u5ea6\u306f <strong>S<sub>R<\/sub> = 4kTR<\/strong> \u3068\u8868\u305b\u307e\u3059\u3002T\u306f\u7d76\u5bfe\u6e29\u5ea6\u3001k\u306f\u30dc\u30eb\u30c4\u30de\u30f3\u5b9a\u6570\u3067\u3059\u3002\u30d1\u30ef\u30fc\u30b9\u30da\u30af\u30c8\u30eb\u5bc6\u5ea6\u306f\u3001\u3053\u3053\u3067\u306f\u5468\u6ce2\u6570\u5e451Hz\u3042\u305f\u308a\u306b\u3069\u308c\u3060\u3051\u306e\u96fb\u5727\u306e\u4e8c\u4e57\u304c\u542b\u307e\u308c\u308b\u304b\u3092\u8868\u3057\u3001\u5358\u4f4d\u306fV\u00b2\/Hz\u3067\u3059\u3002\u3053\u308c\u3092\u6e2c\u5b9a\u5e2f\u57df\u306b\u308f\u305f\u3063\u3066\u8db3\u3057\u5408\u308f\u305b\u308b\u3068\u3001\u96fb\u5727\u306e\u4e8c\u4e57\u5e73\u5747\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u62b5\u6297\u5024R\u3092\u5225\u306b\u6e2c\u5b9a\u3067\u304d\u308c\u3070\u3001\u6b8b\u308b\u672a\u77e5\u91cf\u306f\u6e29\u5ea6T\u3067\u3059\u3002\u3053\u306e\u95a2\u4fc2\u3092\u4f7f\u3063\u3066\u6e29\u5ea6\u3092\u6c42\u3081\u308b\u306e\u304cJNT\u306e\u51fa\u767a\u70b9\u3067\u3059\u3002\u62b5\u6297\u5024\u304c\u6e29\u5ea6\u3068\u3068\u3082\u306b\u5909\u308f\u308b\u6027\u8cea\u3092\u6821\u6b63\u3057\u3066\u4f7f\u3046\u62b5\u6297\u6e29\u5ea6\u8a08\u3068\u306f\u3001\u6e29\u5ea6\u306e\u8aad\u307f\u53d6\u308a\u65b9\u304c\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8fd1\u4f3c\u3092\u3001\u6975\u4f4e\u6e29\u3084\u9ad8\u3044\u5468\u6ce2\u6570\u3078\u7121\u6761\u4ef6\u306b\u5ef6\u3070\u3059\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u91cf\u5b50\u8ad6\u306b\u57fa\u3065\u304f\u88dc\u6b63\u304c\u5fc5\u8981\u306b\u306a\u308b\u9818\u57df\u3067\u306f\u3001\u5358\u7d14\u306a4kTR\u304b\u3089\u306e\u305a\u308c\u3082\u8a55\u4fa1\u3057\u307e\u3059\u3002\u6e2c\u5b9a\u3059\u308b\u5e2f\u57df\u5e45\u3068\u96d1\u97f3\u306e\u4e8c\u4e57\u5e73\u5747\u306e\u95a2\u4fc2\u306f\u3001<a href=\"https:\/\/quantumsea.net\/?p=1514\">\u30b8\u30e7\u30f3\u30bd\u30f3\u96d1\u97f3\u3068\u5e2f\u57df\u5e45\u306e\u8a18\u4e8b<\/a>\u3067\u3082\u6271\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u540c\u3058\u63fa\u3089\u304e\u3092\u3001\u72ec\u7acb\u3057\u305f\u4e8c\u3064\u306e\u7d4c\u8def\u3067\u8aad\u3080<\/h2>\n<p>\u5897\u5e45\u5668\u3092\u4e00\u3064\u3060\u3051\u4f7f\u3046\u3068\u3001\u62b5\u6297\u306e\u71b1\u96d1\u97f3\u306b\u5897\u5e45\u5668\u81ea\u8eab\u306e\u96d1\u97f3\u304c\u91cd\u306a\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u540c\u3058\u62b5\u6297\u306e\u4e21\u7aef\u96fb\u5727\u3092\u3001\u4e8c\u3064\u306e\u5897\u5e45\u5668\u3068A\/D\u5909\u63db\u5668\u3067\u540c\u6642\u306b\u8aad\u307f\u53d6\u308a\u307e\u3059\u3002\u62b5\u6297\u304c\u4f5c\u308b\u63fa\u3089\u304e\u306f\u4e21\u7d4c\u8def\u306b\u5171\u901a\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u5897\u5e45\u5668\u304c\u52a0\u3048\u308b\u96d1\u97f3\u306f\u3001\u7406\u60f3\u7684\u306b\u306f\u4e92\u3044\u306b\u72ec\u7acb\u3067\u3059\u3002<\/p>\n<p>\u4ed5\u7d44\u307f\u3092\u898b\u308b\u305f\u3081\u306b\u3001\u5897\u5e45\u7387\u3092\u88dc\u6b63\u3057\u305f\u4e8c\u3064\u306e\u6e2c\u5b9a\u5024\u3092 <strong>x = s + n\u2081\u3001y = s + n\u2082<\/strong> \u3068\u7f6e\u304d\u307e\u3059\u3002s\u304c\u62b5\u6297\u306e\u4fe1\u53f7\u3001n\u2081\u3068n\u2082\u304c\u5404\u7d4c\u8def\u306e\u52a0\u7b97\u96d1\u97f3\u3067\u3059\u3002\u3069\u306e\u63fa\u3089\u304e\u3082\u5e73\u5747\u304c\u30bc\u30ed\u3067\u3001\u96d1\u97f3\u540c\u58eb\u3068\u4fe1\u53f7\u306b\u76f8\u95a2\u304c\u306a\u3051\u308c\u3070\u3001\u7a4dxy\u3092\u5341\u5206\u9577\u304f\u5e73\u5747\u3057\u305f\u5024\u306fs\u00b2\u306e\u5e73\u5747\u3078\u8fd1\u3065\u304d\u307e\u3059\u3002sn\u2081\u3001sn\u2082\u3001n\u2081n\u2082\u306e\u5e73\u5747\u5bc4\u4e0e\u304c\u30bc\u30ed\u306b\u306a\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001x\u3060\u3051\u3092\u4e8c\u4e57\u3057\u3066\u5e73\u5747\u3059\u308b\u3068\u3001s\u00b2\u306bn\u2081\u00b2\u306e\u5e73\u5747\u3082\u52a0\u308f\u308a\u307e\u3059\u3002\u4e8c\u3064\u306e\u6e2c\u5b9a\u5024\u3092\u5358\u306b\u5e73\u5747\u3059\u308b\u306e\u3067\u306a\u304f\u3001<strong>\u7a4d\u306e\u5e73\u5747\u304b\u3089\u5171\u901a\u6210\u5206\u3092\u898b\u308b<\/strong>\u3068\u3053\u308d\u304c\u76f8\u95a2\u6e2c\u5b9a\u306e\u8981\u70b9\u3067\u3059\u3002\u5b9f\u969b\u306e\u88c5\u7f6e\u3067\u306f\u4e8c\u3064\u306e\u4fe1\u53f7\u3092\u5468\u6ce2\u6570\u3054\u3068\u306b\u5206\u3051\u3001\u30af\u30ed\u30b9\u30b9\u30da\u30af\u30c8\u30eb\u3068\u3057\u3066\u6bd4\u8f03\u3059\u308b\u65b9\u6cd5\u3082\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8aac\u660e\u306f\u3001\u72ec\u7acb\u306a\u52a0\u7b97\u96fb\u5727\u96d1\u97f3\u306b\u7d5e\u3063\u305f\u30e2\u30c7\u30eb\u3067\u3059\u3002\u5897\u5e45\u5668\u306e\u5165\u529b\u96fb\u6d41\u96d1\u97f3\u304c\u62b5\u6297\u3092\u6d41\u308c\u3066\u96fb\u5727\u3092\u4f5c\u308b\u3068\u3001\u305d\u306e\u96fb\u5727\u306f\u4e21\u7d4c\u8def\u306b\u898b\u3048\u307e\u3059\u3002\u5916\u90e8\u306e\u96fb\u78c1\u59a8\u5bb3\u3082\u4e8c\u3064\u306e\u7d4c\u8def\u3078\u5171\u901a\u306b\u5165\u308a\u5f97\u307e\u3059\u3002\u76f8\u95a2\u3067\u6b8b\u3063\u305f\u6210\u5206\u3092\u3001\u3059\u3079\u3066\u6e2c\u308a\u305f\u3044\u71b1\u96d1\u97f3\u3060\u3068\u5224\u65ad\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u57fa\u6e96\u3068\u306e\u5207\u308a\u66ff\u3048\u3067\u3001\u5897\u5e45\u5668\u306e\u5909\u5316\u3092\u8ffd\u3044\u304b\u3051\u308b<\/h2>\n<p>\u5171\u901a\u3059\u308b\u71b1\u96d1\u97f3\u3092\u53d6\u308a\u51fa\u305b\u3066\u3082\u3001\u5897\u5e45\u7387\u3084\u5468\u6ce2\u6570\u5fdc\u7b54\u304c\u6b63\u78ba\u306b\u5206\u304b\u3089\u306a\u3051\u308c\u3070\u3001\u5165\u529b\u5074\u306e\u96fb\u5727\u306e\u5927\u304d\u3055\u3078\u623b\u3059\u306e\u306f\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u672a\u77e5\u306e\u6e29\u5ea6\u306b\u7f6e\u3044\u305f\u62b5\u6297\u3068\u57fa\u6e96\u4fe1\u53f7\u3092\u3001\u540c\u3058\u6e2c\u5b9a\u56de\u8def\u3078\u4ea4\u4e92\u306b\u3064\u306a\u304e\u307e\u3059\u3002\u4e8c\u3064\u306e\u6e2c\u5b9a\u306b\u5171\u901a\u3059\u308b\u5897\u5e45\u7387\u306a\u3069\u3092\u3001\u6bd4\u3092\u53d6\u308b\u3053\u3068\u3067\u6253\u3061\u6d88\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u5207\u308a\u66ff\u3048\u3092\u7e70\u308a\u8fd4\u305b\u3070\u3001\u3086\u3063\u304f\u308a\u3068\u3057\u305f\u5897\u5e45\u7387\u306e\u5909\u5316\u306b\u3082\u8ffd\u968f\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u57fa\u6e96\u306b\u65e2\u77e5\u6e29\u5ea6\u306e\u62b5\u6297\u3092\u4f7f\u3046\u5834\u5408\u3001\u540c\u3058\u5b9f\u52b9\u5e2f\u57df\u3068\u5fdc\u7b54\u3092\u4eee\u5b9a\u3059\u308b\u3068\u3001\u6e29\u5ea6\u306f\u300c\u57fa\u6e96\u6e29\u5ea6 \u00d7 \u96d1\u97f3\u306e\u4e8c\u4e57\u5e73\u5747\u306e\u6bd4 \u00d7 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style=\"max-width:100%;margin:1.5em 0;\"><a href=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-johnson-noise-thermometry-correlation-source-figure-1-84560da9647b.png\"><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-johnson-noise-thermometry-correlation-source-figure-1-84560da9647b.png\" alt=\"\u30b8\u30e7\u30f3\u30bd\u30f3\u96d1\u97f3\u6e29\u5ea6\u8a08\u306e\u69cb\u6210\u3002\u62b5\u6297R\u3068\u6e29\u5ea6T\u306e\u4fe1\u53f7\u3001\u307e\u305f\u306fQVNS\u306e\u4fe1\u53f7\u3092\u30b9\u30a4\u30c3\u30c1\u3067\u9078\u3073\u3001\u4e8c\u3064\u306e\u5897\u5e45\u5668\u30fb\u30d5\u30a3\u30eb\u30bf\u30fc\u30fbAD\u5909\u63db\u5668\u306e\u7d4c\u8def\u304b\u3089\u4e57\u7b97\u5668\u3068\u7a4d\u7b97\u5668\u3078\u9001\u308b\u3002\" style=\"display:block;width:900px;max-width:100%;height:auto;\"><\/a><figcaption>\u62b5\u6297\u306e\u71b1\u96d1\u97f3\u3068QVNS\u3092\u5207\u308a\u66ff\u3048\u3001\u540c\u3058\u4e8c\u3064\u306e\u7d4c\u8def\u3067\u6bd4\u8f03\u3059\u308b\u69cb\u6210\u3002\u51fa\u5178\uff1aSamuel P. Benz\u307b\u304b\u300cPractical realisation of the kelvin by Johnson noise thermometry\u300d\uff082024\uff09\u3001Figure 3\u3001\u672c\u65876\u9801\uff08PDF7\u9801\uff09\u3002\u56f3\u306e\u90e8\u5206\u3092\u629c\u7c8b\u3002\u00a9 2024 BIPM and IOP Publishing Ltd. <a href=\"https:\/\/tsapps.nist.gov\/publication\/get_pdf.cfm?pub_id=956180\">\u539f\u8ad6\u6587<\/a>\u3002\u753b\u50cf\u3092\u958b\u304f\u3068\u62e1\u5927\u3067\u304d\u307e\u3059\u3002<\/figcaption><\/figure>\n<p>\u56f3\u306e\u5de6\u4e0a\u306b\u3042\u308bR\u3001T\u304c\u3001\u6e29\u5ea6\u3092\u6e2c\u308b\u62b5\u6297\u3067\u3059\u3002\u5de6\u4e0b\u306eQVNS\u306b\u306f\u3001\u30b8\u30e7\u30bb\u30d5\u30bd\u30f3\u63a5\u5408\u3068\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u5408\u308f\u305b\u308b\u305f\u3081\u306e\u62b5\u6297\u304c\u63cf\u304b\u308c\u3066\u3044\u307e\u3059\u3002Switch\u306f\u4fe1\u53f7\u6e90\u3092\u9078\u3076\u90e8\u5206\u3067\u3001\u305d\u306e\u53f3\u306eChannel 1\u3068Channel 2\u306f\u3001\u9078\u3070\u308c\u305f\u540c\u3058\u4fe1\u53f7\u3092\u8aad\u3080\u4e8c\u3064\u306e\u7d4c\u8def\u3067\u3059\u3002\u300c\u4e0a\u306e\u7d4c\u8def\u304c\u6e2c\u5b9a\u5bfe\u8c61\u3001\u4e0b\u306e\u7d4c\u8def\u304c\u57fa\u6e96\u300d\u3068\u3044\u3046\u5206\u62c5\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u7d4c\u8def\u3067\u5897\u5e45\u3068\u30d5\u30a3\u30eb\u30bf\u30fc\u51e6\u7406\u3092\u884c\u3044\u3001ADC\u3067\u96fb\u5727\u3092\u6570\u5024\u306b\u5909\u3048\u307e\u3059\u3002\u53f3\u5074\u306eMultiplier\u3068Integrator\u306f\u3001\u4e8c\u3064\u306e\u6e2c\u5b9a\u7d50\u679c\u3092\u639b\u3051\u5408\u308f\u305b\u3066\u7a4d\u7b97\u3059\u308b\u50cd\u304d\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u4fe1\u53f7\u6e90\u3092\u66ff\u3048\u3066\u3082\u540c\u3058\u4e8c\u7d4c\u8def\u3092\u4f7f\u3046\u69cb\u6210\u304c\u3001\u76f8\u95a2\u306b\u3088\u308b\u96d1\u97f3\u306e\u5207\u308a\u5206\u3051\u3068\u3001\u57fa\u6e96\u3068\u306e\u6bd4\u8f03\u3092\u7d50\u3073\u3064\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u91cf\u5b50\u96fb\u5727\u96d1\u97f3\u6e90QVNS\u304c\u3001\u6e29\u5ea6\u306e\u57fa\u6e96\u3092\u7f6e\u304d\u63db\u3048\u308b<\/h2>\n<p>QVNS\u306fQuantum Voltage Noise Source\u306e\u7565\u3067\u3059\u3002\u62b5\u6297\u3092\u6e29\u3081\u3066\u96d1\u97f3\u3092\u4f5c\u308b\u88c5\u7f6e\u3067\u306f\u306a\u304f\u3001\u30b8\u30e7\u30bb\u30d5\u30bd\u30f3\u63a5\u5408\u3092\u4f7f\u3063\u3066\u3001\u6c7a\u3081\u3089\u308c\u305f\u30d1\u30eb\u30b9\u5217\u304b\u3089\u7591\u4f3c\u30e9\u30f3\u30c0\u30e0\u306a\u96fb\u5727\u6ce2\u5f62\u3092\u5408\u6210\u3057\u307e\u3059\u3002\u30d1\u30eb\u30b9\u306e\u96fb\u5727\u3092\u6642\u9593\u3067\u7a4d\u5206\u3057\u305f\u9762\u7a4d\u304ch\/2e\u306e\u6574\u6570\u500d\u306b\u306a\u308b\u6027\u8cea\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u3001\u30d1\u30eb\u30b9\u5217\u3068\u30af\u30ed\u30c3\u30af\u5468\u6ce2\u6570\u304b\u3089\u3001\u57fa\u6e96\u4fe1\u53f7\u306e\u5927\u304d\u3055\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002h\u306f\u30d7\u30e9\u30f3\u30af\u5b9a\u6570\u3001e\u306f\u96fb\u6c17\u7d20\u91cf\u3067\u3059\u3002<\/p>\n<p>\u62b5\u6297\u306e\u71b1\u96d1\u97f3\u3068\u3001\u3053\u306e\u8a08\u7b97\u53ef\u80fd\u306a\u4fe1\u53f7\u306e\u30b9\u30da\u30af\u30c8\u30eb\u306e\u6bd4\u3092\u6e2c\u308c\u3070\u3001\u65e2\u77e5\u6e29\u5ea6\u306e\u62b5\u6297\u3092\u4f7f\u308f\u305a\u306b\u6e29\u5ea6\u3092\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u304cQVNS\u3092\u7528\u3044\u305f\u7d76\u5bfe\u4e00\u6b21\u6e29\u5ea6\u6e2c\u5b9a\u3067\u3059\u3002\u91cf\u5b50\u30db\u30fc\u30eb\u52b9\u679c\u306b\u57fa\u3065\u304f\u62b5\u6297\u6a19\u6e96\u3078\u306e\u3064\u306a\u304c\u308a\u3082\u542b\u3081\u308b\u3068\u3001\u6e29\u5ea6\u306fh\u3068k\u3001\u5468\u6ce2\u6570\u3001\u62b5\u6297\u6bd4\u3001\u6e2c\u5b9a\u3057\u305f\u96d1\u97f3\u306e\u30b9\u30da\u30af\u30c8\u30eb\u6bd4\u3078\u7d50\u3073\u3064\u304d\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u306eSI\u3067\u306f\u3001k\u306f\u6b63\u78ba\u306b1.380649 \u00d7 10\u207b\u00b2\u00b3 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P. Benz\u307b\u304b\uff082024\uff09\u300cPractical realisation of the kelvin by Johnson noise thermometry\u300d\u3001Metrologia 61, 022001\u3002\u539f\u7406\u3001\u88c5\u7f6e\u69cb\u6210\u3001\u89e3\u6790\u3001\u4e0d\u78ba\u304b\u3055\u3092\u307e\u3068\u3081\u305f\u30ec\u30d3\u30e5\u30fc\u3002<a href=\"https:\/\/tsapps.nist.gov\/publication\/get_pdf.cfm?pub_id=956180\">\u539f\u8ad6\u6587PDF<\/a>\uff0f<a href=\"https:\/\/www.nist.gov\/publications\/practical-realisation-kelvin-johnson-noise-thermometry\">NIST\u63b2\u8f09\u30da\u30fc\u30b8<\/a>\u3002<\/li>\n<li>BIPM\u300cSI base unit: kelvin (K)\u300d\u3002\u73fe\u5728\u306e\u30b1\u30eb\u30d3\u30f3\u3068\u30dc\u30eb\u30c4\u30de\u30f3\u5b9a\u6570\u306e\u5b9a\u7fa9\u3002<a href=\"https:\/\/www.bipm.org\/en\/si-base-units\/kelvin\">\u516c\u5f0f\u8aac\u660e<\/a>\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u62b5\u6297\u306b\u5916\u304b\u3089\u96fb\u5727\u3092\u304b\u3051\u306a\u304f\u3066\u3082\u3001\u305d\u306e\u4e21\u7aef\u306b\u306f\u5c0f\u3055\u306a\u96fb\u5727\u306e\u63fa\u3089\u304e\u304c\u73fe\u308c\u307e\u3059\u3002\u96fb\u8377\u3092\u904b\u3076\u7c92\u5b50\u306e\u71b1\u904b\u52d5\u306b\u3088\u308b\u300c\u30b8\u30e7\u30f3\u30bd\u30f3\u96d1\u97f3\u300d\u3067\u3059\u3002\u96fb\u5b50\u56de\u8def\u3067\u306f\u53d6\u308a\u9664\u304d\u305f\u3044\u96d1\u97f3\u3067\u3059\u304c\u3001\u63fa\u3089\u304e\u306e\u5927\u304d\u3055\u306b\u6e29\u5ea6\u306e\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6e29\u5ea6\u8a08\u306e\u4fe1\u53f7 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1762,"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":[303],"class_list":["post-1764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-semiconductors-electronics","tag-johnson-noise"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-johnson-noise-thermometry-correlation-featured-4658659671fe.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1764","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=1764"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1764\/revisions"}],"predecessor-version":[{"id":1765,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1764\/revisions\/1765"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1762"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}