{"id":2139,"date":"2026-11-05T09:00:00","date_gmt":"2026-11-05T00:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=2139"},"modified":"2026-11-05T02:07:51","modified_gmt":"2026-11-04T17:07:51","slug":"qs-satellite-qkd-finite-key-20261105","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=2139","title":{"rendered":"\u885b\u661f\u91cf\u5b50\u9375\u914d\u9001\u3001\u5149\u6e90\u306e\u660e\u308b\u3055\u3092\u6709\u9650\u30c7\u30fc\u30bf\u304b\u3089\u898b\u76f4\u3059"},"content":{"rendered":"<p>\u885b\u661f\u3092\u901a\u3058\u3066\u6697\u53f7\u9375\u3092\u5171\u6709\u3059\u308b\u3068\u304d\u3001\u5149\u6e90\u3092\u660e\u308b\u304f\u3059\u308c\u3070\u3001\u305d\u306e\u307e\u307e\u4f7f\u3048\u308b\u9375\u304c\u5897\u3048\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u77ed\u3044\u901a\u904e\u6642\u9593\u306b\u96c6\u307e\u308b\u30c7\u30fc\u30bf\u304c\u5c11\u306a\u3044\u307b\u3069\u3001\u8aa4\u308a\u7387\u3092\u898b\u7a4d\u3082\u308b\u969b\u306e\u4e0d\u78ba\u304b\u3055\u3082\u52b9\u3044\u3066\u304d\u307e\u3059\u3002\u30d8\u30ea\u30aa\u30c3\u30c8\u30fb\u30ef\u30c3\u30c8\u5927\u5b66\u306a\u3069\u306e\u7814\u7a76\u30c1\u30fc\u30e0\u306f\u3001\u5730\u4e0a\u304b\u3089\u885b\u661f\u3078\u5149\u3092\u9001\u308b\u91cf\u5b50\u9375\u914d\u9001\u306b\u3064\u3044\u3066\u3001\u3053\u306e\u300c\u6709\u9650\u306e\u30c7\u30fc\u30bf\u300d\u3092\u8003\u616e\u3057\u3066\u5149\u6e90\u306e\u52d5\u304b\u3057\u65b9\u3092\u8abf\u3079\u307e\u3057\u305f\u30022026\u5e7411\u67082\u65e5\u63d0\u51fa\u306e\u30d7\u30ec\u30d7\u30ea\u30f3\u30c8\u306b\u3088\u308b\u3001\u5b9f\u9a13\u3067\u5f97\u305f\u6a5f\u5668\u306e\u7279\u6027\u3092\u7528\u3044\u305f\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002[1]<\/p>\n<section 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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>\u885b\u661f\u91cf\u5b50\u9375\u914d\u9001\u3067\u306f\u3001\u691c\u51fa\u3057\u305f\u5149\u5b50\u306e\u6570\u3068\u3001\u5b89\u5168\u6027\u3092\u8a55\u4fa1\u3057\u305f\u5f8c\u306b\u6b8b\u308b\u9375\u306e\u9577\u3055\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/li>\n<li>\u5149\u6e90\u3092\u5f37\u304f\u3059\u308b\u3068\u4fe1\u53f7\u306f\u5897\u3048\u307e\u3059\u304c\u3001\u7121\u95a2\u4fc2\u306a\u691c\u51fa\u3092\u540c\u3058\u5149\u5b50\u5bfe\u3068\u6271\u3046\u8aa4\u308a\u3082\u5897\u3048\u307e\u3059\u3002\u6709\u9650\u30c7\u30fc\u30bf\u3092\u8003\u616e\u3057\u305f\u4eca\u56de\u306e\u30e2\u30c7\u30eb\u3067\u306f\u3001\u6700\u9069\u306a\u5149\u6e90\u306e\u51fa\u529b\u304c\u4e0b\u304c\u308a\u307e\u3057\u305f\u3002<\/li>\n<li>\u8907\u6570\u56de\u306e\u901a\u904e\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u308b\u65b9\u6cd5\u306f\u3001\u7d71\u8a08\u4e0a\u306e\u4e0d\u78ba\u304b\u3055\u3092\u6291\u3048\u308b\u4e00\u65b9\u3001\u9375\u3092\u4f7f\u3048\u308b\u307e\u3067\u306e\u5f85\u3061\u6642\u9593\u3068\u4fdd\u5b58\u91cf\u304c\u5897\u3048\u307e\u3059\u3002\u885b\u661f\u3067\u306e\u5b9f\u904b\u7528\u3092\u5b9f\u8a3c\u3057\u305f\u7d50\u679c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u96c6\u307e\u3063\u305f\u30c7\u30fc\u30bf\u3092\u3001\u3059\u3079\u3066\u9375\u306b\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u306a\u3044<\/h2>\n<p>\u91cf\u5b50\u9375\u914d\u9001\uff08QKD\uff09\u306f\u3001\u901a\u4fe1\u3059\u308b\u4e8c\u8005\u304c\u6697\u53f7\u306b\u4f7f\u3046\u5171\u901a\u306e\u9375\u3092\u4f5c\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u4eca\u56de\u6271\u3046BBM92\u65b9\u5f0f\u3067\u306f\u3001\u91cf\u5b50\u3082\u3064\u308c\u3092\u6301\u3064\u5149\u5b50\u5bfe\u3092\u4f7f\u3044\u3001\u305d\u308c\u305e\u308c\u306e\u6e2c\u5b9a\u7d50\u679c\u306e\u95a2\u4fc2\u304b\u3089\u9375\u3092\u4f5c\u308a\u307e\u3059\u3002\u30e1\u30c3\u30bb\u30fc\u30b8\u305d\u306e\u3082\u306e\u3092\u5149\u5b50\u5bfe\u3067\u9001\u308b\u65b9\u5f0f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u60f3\u5b9a\u3059\u308b\u69cb\u6210\u3067\u306f\u3001\u5149\u5b50\u5bfe\u3092\u4f5c\u308b\u88c5\u7f6e\u3092\u5730\u4e0a\u306b\u7f6e\u304d\u3001\u4e00\u65b9\u306e\u5149\u5b50\u3092\u885b\u661f\u3078\u9001\u308a\u3001\u3082\u3046\u4e00\u65b9\u3092\u5730\u4e0a\u3067\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u5730\u4e0a\u5074\u306e\u5229\u7528\u8005\u3092\u96e2\u308c\u305f\u5834\u6240\u306b\u7f6e\u304f\u5834\u5408\u306b\u306f\u3001\u305d\u3061\u3089\u3078\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u5149\u5b50\u3092\u904b\u3073\u307e\u3059\u3002\u5149\u6e90\u304c\u5730\u4e0a\u306b\u3042\u308b\u305f\u3081\u3001\u885b\u661f\u3092\u6253\u3061\u4e0a\u3052\u76f4\u3055\u305a\u306b\u8abf\u6574\u3084\u6539\u826f\u3092\u884c\u3044\u3084\u3059\u3044\u69cb\u6210\u3067\u3059\u3002<\/p>\n<p>\u885b\u661f\u304c\u5730\u4e0a\u5c40\u304b\u3089\u898b\u3048\u308b\u6642\u9593\u306f\u9650\u3089\u308c\u3001\u5149\u306e\u591a\u304f\u306f\u4f1d\u9001\u4e2d\u306b\u5931\u308f\u308c\u307e\u3059\u3002\u53d7\u3051\u53d6\u3063\u305f\u6e2c\u5b9a\u7d50\u679c\u306e\u3046\u3061\u3001\u6e2c\u5b9a\u65b9\u6cd5\u304c\u5408\u3046\u3082\u306e\u3092\u9078\u3073\u3001\u4e00\u90e8\u3092\u4f7f\u3063\u3066\u8aa4\u308a\u306e\u5272\u5408\u3092\u63a8\u5b9a\u3057\u3001\u8aa4\u308a\u8a02\u6b63\u3068\u300c\u79d8\u533f\u6027\u5897\u5f37\u300d\u3092\u884c\u3044\u307e\u3059\u3002\u79d8\u533f\u6027\u5897\u5f37\u306f\u3001\u76f8\u624b\u306b\u77e5\u3089\u308c\u305f\u53ef\u80fd\u6027\u306e\u3042\u308b\u60c5\u5831\u3092\u8003\u616e\u3057\u3001\u77ed\u3044\u9375\u3078\u5727\u7e2e\u3059\u308b\u51e6\u7406\u3067\u3059\u3002[1]<\/p>\n<p>\u3053\u3053\u3067\u3001\u691c\u67fb\u306b\u4f7f\u3048\u308b\u30c7\u30fc\u30bf\u304c\u5c11\u306a\u3044\u3068\u3001\u6e2c\u3063\u305f\u8aa4\u308a\u7387\u304c\u5b9f\u969b\u3088\u308a\u4f4e\u304f\u51fa\u308b\u53ef\u80fd\u6027\u3092\u7121\u8996\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u306e\u4e0d\u78ba\u304b\u3055\u3092\u898b\u8fbc\u3093\u3067\u4f59\u88d5\u3092\u53d6\u308b\u305f\u3081\u3001\u6700\u7d42\u7684\u306b\u6b8b\u305b\u308b\u9375\u306f\u77ed\u304f\u306a\u308a\u307e\u3059\u3002\u691c\u51fa\u304c\u7121\u9650\u306b\u591a\u3044\u3068\u307f\u306a\u3059\u300c\u6f38\u8fd1\u7684\u306a\u89e3\u6790\u300d\u3068\u3001\u6709\u9650\u306e\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u304f\u89e3\u6790\u3067\u306f\u3001\u540c\u3058\u6a5f\u5668\u3067\u3082\u4f7f\u3048\u308b\u6761\u4ef6\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<h2>\u5149\u3092\u5897\u3084\u3059\u5229\u70b9\u3068\u3001\u7d44\u307f\u5408\u308f\u305b\u3092\u53d6\u308a\u9055\u3048\u308b\u8aa4\u308a<\/h2>\n<p>\u5149\u5b50\u5bfe\u306e\u767a\u751f\u3092\u4fc3\u3059\u30dd\u30f3\u30d7\u5149\u3092\u5f37\u304f\u3059\u308b\u3068\u3001\u691c\u51fa\u3055\u308c\u308b\u5bfe\u3082\u5897\u3048\u307e\u3059\u3002\u4e00\u65b9\u3001\u77ed\u3044\u6642\u9593\u5185\u306b\u8907\u6570\u306e\u5bfe\u304c\u751f\u307e\u308c\u308b\u3068\u3001\u672c\u6765\u5225\u3005\u306e\u5bfe\u306b\u5c5e\u3059\u308b\u691c\u51fa\u3092\u3001\u540c\u3058\u5bfe\u306e\u3082\u306e\u3068\u3057\u3066\u6271\u3046\u300c\u5076\u7136\u540c\u6642\u8a08\u6570\u300d\u3082\u5897\u3048\u307e\u3059\u3002\u4fe1\u53f7\u306e\u6570\u3092\u7a3c\u3050\u3053\u3068\u3068\u3001\u8aa4\u308a\u306e\u5c11\u306a\u3044\u30c7\u30fc\u30bf\u3092\u5f97\u308b\u3053\u3068\u306e\u9593\u306b\u3001\u91e3\u308a\u5408\u3044\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u7814\u7a76\u30c1\u30fc\u30e0\u306f\u3001\u885b\u661f\u306e\u901a\u904e\u3054\u3068\u306b\u30dd\u30f3\u30d7\u5149\u306e\u51fa\u529b\u3092\u9078\u3073\u3001\u305d\u306e\u4e00\u56de\u306e\u901a\u904e\u4e2d\u306f\u4e00\u5b9a\u306b\u4fdd\u3064\u6761\u4ef6\u3067\u8a08\u7b97\u3057\u307e\u3057\u305f\u3002\u4ee3\u8868\u4f8b\u306f\u9ad8\u5ea6550km\u3001\u53d7\u4fe1\u53e3\u5f8425cm\u306e\u885b\u661f\u3068\u3001\u5730\u4e0a\u5074\u306b10km\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3092\u52a0\u3048\u305f\u69cb\u6210\u3067\u3059\u3002\u885b\u661f\u304c\u771f\u4e0a\u3092\u901a\u308b\u6761\u4ef6\u3067\u306f\u3001\u6700\u9069\u306a\u51fa\u529b\u306f\u6f38\u8fd1\u89e3\u6790\u306e6.36mW\u304b\u3089\u3001\u6709\u9650\u30c7\u30fc\u30bf\u3092\u8003\u616e\u3057\u305f\u89e3\u6790\u306e5.76mW\u3078\u4e0b\u304c\u3063\u3066\u3044\u307e\u3059\u3002[1]<\/p>\n<p>\u7d049%\u4f4e\u3044\u51fa\u529b\u3067\u3059\u304c\u3001\u3053\u308c\u306f\u88c5\u7f6e\u5168\u4f53\u306e\u6d88\u8cbb\u96fb\u529b\u3092\u7d049%\u6e1b\u3089\u3057\u305f\u3068\u3044\u3046\u7d50\u679c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30dd\u30f3\u30d7\u5149\u306e\u5f37\u3055\u3092\u3001\u5b89\u5168\u6027\u3092\u8a55\u4fa1\u3057\u305f\u5f8c\u306b\u6b8b\u308b\u9375\u306e\u9577\u3055\u306b\u5408\u308f\u305b\u3066\u9078\u3073\u76f4\u3057\u305f\u3001\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u5024\u3082\u3001\u3059\u3079\u3066\u306e\u5730\u4e0a\u5c40\u3067\u5171\u901a\u306b\u4f7f\u3048\u308b\u8a2d\u5b9a\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<figure style=\"margin:24px 0;padding:12px;border:1px solid #d7dde1;border-radius:6px;max-width:100%;box-sizing:border-box\">\n<div role=\"region\" aria-label=\"\u5149\u6e90\u51fa\u529b\u3068\u885b\u661f\u306e\u4ef0\u89d2\u306e\u539f\u56f3\u3002\u6a2a\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u304d\u307e\u3059\" tabindex=\"0\" style=\"overflow-x:auto;max-width:100%\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/11\/qs-satellite-qkd-finite-key-20261105-figure3-bcd457bc728e.png\" width=\"1400\" height=\"1026\" alt=\"\u5de6\u306f\u6f38\u8fd1\u89e3\u6790\u3001\u53f3\u306f\u6709\u9650\u30c7\u30fc\u30bf\u306e\u89e3\u6790\u306b\u3088\u308b\u9375\u9577\u306e\u5206\u5e03\u3002\u7e26\u8ef8\u306f\u30dd\u30f3\u30d7\u5149\u51fa\u529b\u3001\u6a2a\u8ef8\u306f\u901a\u904e\u6642\u306e\u6700\u5927\u4ef0\u89d2\u3002\u53f3\u306e\u6a2a\u8ef8\u306f\u5de6\u3068\u9006\u5411\u304d\u3002\u8d64\u70b9\u306f\u5404\u4ef0\u89d2\u3067\u306e\u6700\u9069\u51fa\u529b\u3002\" style=\"display:block;width:780px;min-width:780px;max-width:none;height:auto\"><\/div><figcaption style=\"font-size:14px;line-height:1.7;margin-top:12px\">\u56f31\u3000\u5149\u6e90\u306e\u51fa\u529b\u3068\u885b\u661f\u306e\u901a\u308a\u65b9\u306b\u3088\u308b\u9375\u9577\u306e\u9055\u3044\u3002\u8272\u304c\u6fc3\u3044\u307b\u3069\u9375\u304c\u9577\u304f\u3001\u8d64\u70b9\u306f\u6700\u9069\u306a\u51fa\u529b\u3092\u793a\u3057\u307e\u3059\u3002\u5de6\u53f3\u306e\u6a2a\u8ef8\u306f\u5411\u304d\u304c\u9006\u306a\u306e\u3067\u3001\u540c\u3058\u4ef0\u89d2\u3092\u5bfe\u5fdc\u3055\u305b\u3066\u8aad\u307f\u307e\u3059\u3002Thomas Jaeken\u307b\u304b\u300c<a href=\"https:\/\/arxiv.org\/abs\/2611.03788v1\">Optimised finite key for satellite up-link entangled quantum key distribution<\/a>\u300d\u3001\u56f33\uff08<a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY 4.0<\/a>\uff09\u3002\u539fSVG\u3092\u5185\u5bb9\u3092\u5909\u3048\u305aPNG\u5316\u3002\u72ed\u3044\u753b\u9762\u3067\u306f\u6a2a\u30b9\u30af\u30ed\u30fc\u30eb\u3001\u307e\u305f\u306f<a href=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/11\/qs-satellite-qkd-finite-key-20261105-figure3-bcd457bc728e.png\">\u539f\u56f3\u5168\u4f53\u3092\u958b\u304f<\/a>\u3053\u3068\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/figcaption><\/figure>\n<h2>\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u308b\u304b\u3001\u4f7f\u3048\u308b\u9375\u3092\u65e9\u304f\u53d6\u308a\u51fa\u3059\u304b<\/h2>\n<p>\u6709\u9650\u30c7\u30fc\u30bf\u306e\u5f71\u97ff\u306f\u3001\u53d7\u4fe1\u5f8c\u306e\u51e6\u7406\u306b\u3082\u53ca\u3073\u307e\u3059\u3002\u4e00\u56de\u306e\u885b\u661f\u901a\u904e\u3054\u3068\u306b\u9375\u3092\u53d6\u308a\u51fa\u3059\u65b9\u6cd5\u306a\u3089\u3001\u305d\u306e\u90fd\u5ea6\u3001\u5229\u7528\u3067\u304d\u308b\u9375\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u8907\u6570\u56de\u306e\u901a\u904e\u3067\u5f97\u305f\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u3066\u304b\u3089\u51e6\u7406\u3059\u308b\u65b9\u6cd5\u306a\u3089\u3001\u7d71\u8a08\u7684\u306a\u898b\u7a4d\u3082\u308a\u306b\u4f7f\u3048\u308b\u30c7\u30fc\u30bf\u304c\u5927\u304d\u304f\u306a\u308a\u3001\u6700\u7d42\u7684\u306a\u9375\u3092\u5897\u3084\u305b\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u9375\u3092\u53d6\u308a\u51fa\u3059\u524d\u306e\u30c7\u30fc\u30bf\u3092\u9577\u304f\u4fdd\u5b58\u3057\u3001\u5fc5\u8981\u306a\u91cf\u304c\u96c6\u307e\u308b\u307e\u3067\u5f85\u3064\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u3001\u5e74\u9593\u306b\u5f97\u3089\u308c\u308b\u91cf\u3060\u3051\u3067\u306a\u304f\u3001\u5fc5\u8981\u306a\u6642\u70b9\u307e\u3067\u306b\u4f7f\u3048\u308b\u9375\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3067\u3059\u3002<\/p>\n<div role=\"region\" aria-label=\"\u91cf\u5b50\u9375\u914d\u9001\u306e\u51e6\u7406\u65b9\u91dd\u306e\u6bd4\u8f03\" tabindex=\"0\" style=\"overflow-x:auto;max-width:100%\">\n<table style=\"width:100%;min-width:600px;border-collapse:collapse;font-size:15px;line-height:1.7\">\n<thead>\n<tr>\n<th scope=\"col\">\u9078\u3073\u65b9<\/th>\n<th scope=\"col\">\u5f97\u3089\u308c\u308b\u5229\u70b9<\/th>\n<th scope=\"col\">\u78ba\u8a8d\u3057\u305f\u3044\u6761\u4ef6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u901a\u904e\u3054\u3068\u306b\u9375\u3092\u53d6\u308a\u51fa\u3059<\/td>\n<td>\u6b21\u306e\u901a\u904e\u3092\u5f85\u305f\u305a\u5229\u7528\u3057\u3084\u3059\u3044<\/td>\n<td>\u5c0f\u3055\u306a\u30c7\u30fc\u30bf\u91cf\u306b\u3088\u308b\u9375\u9577\u306e\u6e1b\u5c11<\/td>\n<\/tr>\n<tr>\n<td>\u8907\u6570\u56de\u306e\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u308b<\/td>\n<td>\u7d71\u8a08\u7684\u306a\u4e0d\u78ba\u304b\u3055\u3092\u6291\u3048\u3084\u3059\u3044<\/td>\n<td>\u5f85\u3061\u6642\u9593\u3001\u4fdd\u5b58\u91cf\u3001\u7570\u306a\u308b\u6761\u4ef6\u306e\u30c7\u30fc\u30bf\u3092\u6271\u3046\u5b89\u5168\u6027\u8a55\u4fa1<\/td>\n<\/tr>\n<tr>\n<td>\u4e00\u56de\u306e\u901a\u904e\u3092\u7d30\u304b\u304f\u5206\u3051\u308b<\/td>\n<td>\u8aa4\u308a\u7387\u306e\u7570\u306a\u308b\u533a\u9593\u3092\u5206\u3051\u3066\u6271\u3048\u308b<\/td>\n<td>\u5404\u533a\u9593\u304c\u5c0f\u3055\u304f\u306a\u308a\u3001\u6709\u9650\u30c7\u30fc\u30bf\u306e\u4e0d\u5229\u304c\u7e70\u308a\u8fd4\u3057\u751f\u3058\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u6700\u5f8c\u306e\u65b9\u6cd5\u306f\u3001\u4e00\u898b\u3059\u308b\u3068\u7121\u99c4\u3092\u6e1b\u3089\u305b\u305d\u3046\u3067\u3059\u3002\u3057\u304b\u3057\u4eca\u56de\u306e\u885b\u661f\u30e2\u30c7\u30eb\u3067\u306f\u3001\u5c0f\u5206\u3051\u306b\u3088\u308b\u4e0d\u5229\u304c\u5927\u304d\u304f\u3001\u5358\u7d14\u306b\u4e8c\u3064\u3078\u5206\u5272\u3057\u3066\u3082\u6539\u5584\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5730\u5e73\u7dda\u306b\u8fd1\u304f\u8aa4\u308a\u306e\u591a\u3044\u90e8\u5206\u3092\u9664\u304d\u3001\u8cea\u306e\u3088\u3044\u5927\u304d\u306a\u30c7\u30fc\u30bf\u306e\u307e\u3068\u307e\u308a\u3092\u6b8b\u3059\u65b9\u91dd\u304c\u6709\u52b9\u3067\u3057\u305f\u3002\u8907\u96d1\u306a\u5206\u3051\u65b9\u307e\u3067\u5426\u5b9a\u3059\u308b\u7d50\u679c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002[1]<\/p>\n<h2>\u5b9f\u6a5f\u3067\u78ba\u304b\u3081\u305f\u3044\u6761\u4ef6\u304c\u6b8b\u308b<\/h2>\n<p>\u4eca\u56de\u306e\u8a08\u7b97\u306f\u3001\u30a8\u30c7\u30a3\u30f3\u30d0\u30e9\u306e\u5730\u4e0a\u5c40\u306e\u6a5f\u5668\u7279\u6027\u3084\u3001QEYSSat\u3092\u53c2\u8003\u306b\u3057\u305f\u885b\u661f\u6761\u4ef6\u306b\u57fa\u3065\u304d\u307e\u3059\u3002QEYSSat\u304c\u8a08\u7b97\u3069\u304a\u308a\u306e\u9375\u3092\u3059\u3067\u306b\u914d\u9001\u3057\u305f\u3001\u3068\u3044\u3046\u5831\u544a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u901a\u4fe1\u8def\u30e2\u30c7\u30eb\u306b\u306f\u4e71\u6d41\u306b\u3088\u308b\u30d3\u30fc\u30e0\u306e\u5e83\u304c\u308a\u3092\u542b\u3081\u3066\u3044\u307e\u3059\u304c\u3001\u30d3\u30fc\u30e0\u5168\u4f53\u304c\u63fa\u308c\u3066\u52d5\u304f\u300c\u30d3\u30fc\u30e0\u30ef\u30f3\u30c0\u30fc\u300d\u306f\u542b\u3081\u3066\u3044\u307e\u305b\u3093\u3002\u5b89\u5168\u6027\u306e\u8a55\u4fa1\u3082\u3001\u8ad6\u6587\u3067\u7f6e\u3044\u305f\u88c5\u7f6e\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u524d\u63d0\u306e\u7bc4\u56f2\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u904b\u7528\u3092\u6bd4\u3079\u308b\u969b\u306b\u306f\u3001\u5149\u6e90\u306e\u6700\u5927\u51fa\u529b\u306b\u52a0\u3048\u3001\u5149\u5b50\u3092\u53d6\u308a\u8fbc\u3080\u52b9\u7387\u3001\u80cc\u666f\u5149\u3084\u691c\u51fa\u5668\u306e\u96d1\u97f3\u3001\u6642\u523b\u3092\u5408\u308f\u305b\u308b\u7cbe\u5ea6\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6709\u9650\u306e\u30c7\u30fc\u30bf\u3092\u524d\u63d0\u306b\u3059\u308b\u3068\u3001\u660e\u308b\u3044\u5149\u6e90\u3092\u7528\u610f\u3059\u308b\u3053\u3068\u3060\u3051\u3067\u306a\u304f\u3001\u3069\u306e\u4fe1\u53f7\u3092\u6b8b\u3057\u3001\u3044\u3064\u9375\u306b\u5909\u3048\u308b\u304b\u307e\u3067\u304c\u8a2d\u8a08\u306e\u4e00\u90e8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ol>\n<li>Thomas Jaeken\u307b\u304b\u300cOptimised finite key for satellite up-link entangled quantum key distribution\u300d\u3001arXiv:2611.03788v1\u30012026\u5e7411\u67082\u65e5\u63d0\u51fa\u3002\u67fb\u8aad\u524d\u306e\u30d7\u30ec\u30d7\u30ea\u30f3\u30c8\u3002<a href=\"https:\/\/arxiv.org\/abs\/2611.03788v1\">\u7248\u60c5\u5831<\/a>\uff0f<a href=\"https:\/\/arxiv.org\/html\/2611.03788v1\">\u672c\u6587\u3068\u56f3<\/a>\uff0f<a href=\"https:\/\/arxiv.org\/pdf\/2611.03788v1\">PDF\u3068\u88dc\u8db3\u8cc7\u6599<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u885b\u661f\u3092\u901a\u3058\u3066\u6697\u53f7\u9375\u3092\u5171\u6709\u3059\u308b\u3068\u304d\u3001\u5149\u6e90\u3092\u660e\u308b\u304f\u3059\u308c\u3070\u3001\u305d\u306e\u307e\u307e\u4f7f\u3048\u308b\u9375\u304c\u5897\u3048\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u77ed\u3044\u901a\u904e\u6642\u9593\u306b\u96c6\u307e\u308b\u30c7\u30fc\u30bf\u304c\u5c11\u306a\u3044\u307b\u3069\u3001\u8aa4\u308a\u7387\u3092\u898b\u7a4d\u3082\u308b\u969b\u306e\u4e0d\u78ba\u304b\u3055\u3082\u52b9\u3044\u3066\u304d\u307e\u3059\u3002\u30d8\u30ea\u30aa\u30c3\u30c8\u30fb\u30ef\u30c3\u30c8\u5927\u5b66\u306a\u3069\u306e\u7814\u7a76\u30c1\u30fc\u30e0\u306f\u3001 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2137,"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":[29],"tags":[427],"class_list":["post-2139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-communications-networking","tag-finite-key-qkd"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/11\/qs-satellite-qkd-finite-key-20261105-8b7643d60ae3.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/2139","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=2139"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/2139\/revisions"}],"predecessor-version":[{"id":2142,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/2139\/revisions\/2142"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/2137"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}