{"id":2239,"date":"2025-07-08T00:00:00","date_gmt":"2025-07-08T00:00:00","guid":{"rendered":"urn:uuid:060a2e53-c030-4c99-b101-8299c68619b2"},"modified":"2025-07-08T00:00:00","modified_gmt":"2025-07-08T00:00:00","slug":"heriumuwei-ji-hou-nixian-retaxin-xing-noxi-shi-leng-dong-ji-chao-chuan-dao-tochao-liu-dong-nore-chuan-dao-hada-kikuwei-u","status":"publish","type":"post","link":"https:\/\/www.sekaiken.com\/?p=2239","title":{"rendered":"\u30d8\u30ea\u30a6\u30e0\u5371\u6a5f\u5f8c\u306b\u73fe\u308c\u305f\u65b0\u578b\u306e\u5e0c\u91c8\u51b7\u51cd\u6a5f\u3001\u8d85\u4f1d\u5c0e\u3068\u8d85\u6d41\u52d5\u306e\u71b1\u4f1d\u5c0e\u306f\u5927\u304d\u304f\u9055\u3046"},"content":{"rendered":"<p>\u65e7\u5f0f\u306e\u5e0c\u91c8\u51b7\u51cd\u6a5f(wet dilution refrigerator)\u306f\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u306e\u51b7\u5374\u80fd\u529b\u306b\u983c\u3063\u3066\u3044\u307e\u3059\u3002\u7279\u306b1K\u30dd\u30c3\u30c8\u3068\u547c\u3070\u308c\u308b\u6e1b\u5727\u3057\u305f\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u306e\u90e8\u5206\u304c\u30d8\u30ea\u30a6\u30e0\u306e\u84b8\u767a\u91cf\u304c\u6fc0\u3057\u3044\u306e\u3067\u73fe\u5728\u306e\u3088\u3046\u306a\u30d8\u30ea\u30a6\u30e0\u7bc0\u7d04\u304c\u5fc5\u8981\u306a\u6761\u4ef6\u3067\u306f\u4f7f\u3044\u306b\u304f\u3044\u3067\u3059\u3002\u305d\u3053\u3067\u3001dry dilution\u3068\u547c\u3070\u308c\u308b\u3001\u5faa\u74b0\u5f0f\u30d8\u30ea\u30a6\u30e0\u51b7\u51cd\u6a5f\u3092\u4f75\u7528\u3057\u305f\u88c5\u7f6e\u304c\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5927\u304d\u304f2\u901a\u308a\u3042\u308b\u305d\u3046\u3067\u3059\u3002\u3044\u305a\u308c\u3082\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u547c\u3070\u308c\u308b\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u304c\u6d41\u308c\u306b\u304f\u3044\u7d30\u3044\u90e8\u5206\u3092\u5c0e\u5165\u3057\u3066\u71b1\u4ea4\u63db\u3068\u6db2\u4f53\u2192\u6c17\u4f53\u3001\u6c17\u4f53\u2192\u6db2\u4f53\u306e\u76f8\u5909\u5316\u3092\u52b9\u7387\u826f\u304f\u884c\u308f\u305b\u308b\u6280\u8853\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u8a66\u884c\u932f\u8aa4\u304c\u5fc5\u8981\u3067\u305f\u3044\u3078\u3093\u306a\u88fd\u4f5c\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u30021\u3064\u306e\u65b9\u5f0f\u3067\u306f\u71b1\u30b9\u30a4\u30c3\u30c1\u3068\u547c\u3070\u308c\u308b\u6a5f\u69cb\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u71b1\u4f1d\u5c0e\u3092on\/off\u3067\u304d\u308b\u3082\u306e\u3067\u3059\u304c\u3001\u30d8\u30ea\u30a6\u30e0\u304c\u6db2\u4f53\u306e\u3068\u304d\uff08\u4eca\u8003\u3048\u3066\u3044\u308b\u6e29\u5ea6\u306f2.17K\u3088\u308a\u3082\u4f4e\u3044\u306e\u30674He\u306f\u8d85\u6d41\u52d5\u306b\u306a\u308b\u304c\u3001\u6e29\u5ea6\u304c\u4e0a\u304c\u308b\u3068\u8d85\u6d41\u52d5\u3067\u306a\u304f\u306a\u308b\uff09\u3001\u6c17\u4f53\u306e\u3068\u304d\uff08\u5bc6\u5ea6\u304c\u4f4e\u3044\u306e\u3067\u71b1\u4f1d\u5c0e\u304c\u60aa\u3044\uff09\u3067\u71b1\u4f1d\u5c0e\u304c\u5909\u308f\u308b\u3053\u3068\u3092\u5229\u7528\u3059\u308b\u306e\u3060\u3068\u601d\u3044\u307e\u3059\u3002\u6c17\u4f53\u306e\u6642\u306f\u81ea\u52d5\u8eca\u306e\u30d6\u30ec\u30fc\u30ad\u306e\u3079\u30fc\u30d1\u30fc\u30ed\u30c3\u30af\u73fe\u8c61\u306b\u4f3c\u3066\u3044\u307e\u3059\u306d\u3002<br \/>\nhttps:\/\/ja.wikipedia.org\/wiki\/%E3%83%99%E3%83%BC%E3%83%91%E3%83%BC%E3%83%AD%E3%83%83%E3%82%AF%E7%8F%BE%E8%B1%A1<br \/>\n\u8d85\u6d41\u52d5\u30d8\u30ea\u30a6\u30e0\u306e\u71b1\u4f1d\u5c0e\u5ea6\u306f\u975e\u5e38\u306b\u9ad8\u3044\u305d\u3046\u3067\u3059\u3002\u79c1\u304c\u5b66\u751f\u306e\u3053\u308d\u306f\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u3092\u30ed\u30fc\u30bf\u30ea\u30fc\u30dd\u30f3\u30d7\u3067\u6e1b\u5727\u3057\u3066\u4f4e\u6e29\u3092\u5f97\u3066\u3044\u307e\u3057\u305f\u304c\uff08\u4eca\u3067\u3082PPMS\u3084MPMS\u306e\u4e2d\u3067\u306f\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u7d30\u3044\u7ba1\uff1d\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u4f7f\u3063\u3066\u5c11\u91cf\u306e\u30d8\u30ea\u30a6\u30e0\u3067\u52b9\u7387\u3088\u304f\u51b7\u5374\u3057\u3066\u3044\u307e\u3059\uff09\u3001\u78ba\u304b\u306b\u30012.17K\u306e\u30e9\u30e0\u30c0\u70b9\u3088\u308a\u4e0b\u3067\u306f\u6cb8\u9a30\u304c\u7121\u304f\u306a\u308a\u307e\u3059\u3002\u4e0b\u8a18\u306e6\u520610\u79d2\u3042\u305f\u308a\u3002<br \/>\n<iframe loading=\"lazy\" title=\"Liquid Helium II the superfluid (part 2 The transition to the superfluid state)\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/1RJKnbIvbMg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><br \/>\nhttps:\/\/www.crc.u-tokyo.ac.jp\/other\/OpenCampus\/parts\/superfluid.pdf<br \/>\n\u8d85\u4f1d\u5c0e\u306e\u5834\u5408\u306f\u3001\u30af\u30fc\u30d1\u30fc\u5bfe\u306f\u71b1\u3092\u4f1d\u3048\u306a\u3044\u306e\u3067\u9006\u306a\u306e\u304c\u9762\u767d\u3044\u3067\u3059\u3002\u3053\u308c\u306f\u4e0b\u8a18\u306b\u3088\u3044\u8aac\u660e\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\nhttps:\/\/physics.stackexchange.com\/questions\/613559\/thermal-conductivity-of-superconducting-material<\/p>\n<p>\u82f1\u8a9e\u306f\u3000https:\/\/physics.stackexchange.com\/questions\/613559\/thermal-conductivity-of-superconducting-material<\/p>\n<p>&ldquo;Good thermal conductors allow dissipation to travel quickly and effectively. In principle, density fluctuations of Cooper pairs could carry heat quite effectively, but in charged systems this has a very large energy cost due to Coulomb repulsion (i.e. excitations are gapped) and so cannot happen under normal circumstances. &rdquo;<br \/>\ndissipation \u6563\u9038<br \/>\nallow ~ to &hellip;  ~\u304c&hellip;\u3059\u308b\u3053\u3068\u3092\u8a31\u3059. \u4e3b\u8a9e\u304cdissipation\u306a\u306e\u304c\u9762\u767d\u3044\u3067\u3059\u306d\u3002<br \/>\nIn principle, \u539f\u5247\u3068\u3057\u3066<br \/>\ndensity fluctuation \u5bc6\u5ea6\u3086\u3089\u304e<br \/>\nexcitations are gapped \u30af\u30fc\u30d1\u30fc\u5bfe\u5f62\u6210\u306f\u52b1\u8d77\u306b\u5bfe\u3059\u308b\u30a8\u30cd\u30eb\u30ae\u30fc\u30ae\u30e3\u30c3\u30d7\u3092\u4f34\u3046<br \/>\nunder normal circumstances \u901a\u5e38\u306e\u74b0\u5883\u4e0b\u3067\u306f<br \/>\n&ldquo;Incidentally, this property of having an energy gap for both breaking Cooper pairs (single-particle gap) as well as density fluctuations (two-particle gap) is why superconductors work well for quantum computation&rdquo;<br \/>\nincidentally \u30a4\u30f3\u30b7\u300c\u30c7\u300d\u30f3\u30bf\u308a\u30fc\u3000= by the way  \u3068\u3053\u308d\u3067<br \/>\n&ldquo;On the other hand, neutral superfluids such as superfluid liquid helium are excellent thermal conductors.&rdquo;<br \/>\nsuperfluids \u8d85\u6d41\u52d5\u4f53<br \/>\nexcellent thermal conductors \u512a\u79c0\u306a\u71b1\u4f1d\u5c0e\u4f53<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u65e7\u5f0f\u306e\u5e0c\u91c8\u51b7\u51cd\u6a5f(wet dilution refrigerator)\u306f\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u306e\u51b7\u5374\u80fd\u529b\u306b\u983c\u3063\u3066\u3044\u307e\u3059\u3002\u7279\u306b1K\u30dd\u30c3\u30c8\u3068\u547c\u3070\u308c\u308b\u6e1b\u5727\u3057\u305f\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u306e\u90e8\u5206\u304c\u30d8\u30ea\u30a6\u30e0\u306e\u84b8\u767a\u91cf\u304c\u6fc0\u3057\u3044\u306e\u3067\u73fe\u5728\u306e\u3088\u3046\u306a\u30d8\u30ea\u30a6\u30e0\u7bc0\u7d04\u304c\u5fc5\u8981\u306a\u6761\u4ef6\u3067\u306f\u4f7f\u3044\u306b\u304f\u3044\u3067\u3059\u3002\u305d\u3053\u3067\u3001dry dilution\u3068\u547c\u3070\u308c\u308b\u3001\u5faa\u74b0\u5f0f\u30d8\u30ea\u30a6\u30e0\u51b7\u51cd\u6a5f\u3092\u4f75\u7528\u3057\u305f\u88c5\u7f6e\u304c\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5927\u304d\u304f2\u901a\u308a\u3042\u308b\u305d\u3046\u3067\u3059\u3002\u3044\u305a\u308c\u3082\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u547c\u3070\u308c\u308b\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u304c\u6d41\u308c\u306b\u304f\u3044\u7d30\u3044\u90e8\u5206\u3092\u5c0e\u5165\u3057\u3066\u71b1\u4ea4\u63db\u3068\u6db2\u4f53\u2192\u6c17\u4f53\u3001\u6c17\u4f53\u2192\u6db2\u4f53\u306e\u76f8\u5909\u5316\u3092\u52b9\u7387\u826f\u304f\u884c\u308f\u305b\u308b\u6280\u8853\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u8a66\u884c\u932f\u8aa4\u304c\u5fc5\u8981\u3067\u305f\u3044\u3078\u3093\u306a\u88fd\u4f5c\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u30021\u3064\u306e\u65b9\u5f0f\u3067\u306f\u71b1\u30b9\u30a4\u30c3\u30c1&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[42],"tags":[5],"class_list":["post-2239","post","type-post","status-publish","format-standard","hentry","category-tech","tag-tech"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/2239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2239"}],"version-history":[{"count":0,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/2239\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}