{"id":6940,"date":"2010-12-31T12:23:38","date_gmt":"2010-12-31T04:23:38","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=6940"},"modified":"2017-03-31T23:20:49","modified_gmt":"2017-03-31T15:20:49","slug":"%e3%80%90%e4%b8%80%e9%a0%81%e7%89%a9%e7%90%86%e3%80%91%e5%85%89%e9%90%98%e9%96%83%e8%80%80%e8%a8%88%e6%99%82%e6%96%b0%e6%9c%aa%e4%be%86","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=6940","title":{"rendered":"\u3010\u4e00\u9801\u7269\u7406\u3011\u5149\u9418\u9583\u8000\u8a08\u6642\u65b0\u672a\u4f86"},"content":{"rendered":"<p><span style=\"color: #800000;\"><strong>\u25a0 \u52a0\u62ff\u5927\u570b\u5bb6\u7814\u7a76\u9662\uff08NRC\uff09\u7684\u7814\u7a76\u4eba\u54e1\u5b8c\u6210\u4e00\u500b\u91cd\u8981\u7684\u91cc\u7a0b\u7891\uff0c\u767c\u5c55\u65b0\u7684\u5168\u7403\u8a08\u6642\u6a19\u6e96\u3002<\/strong><\/span><\/p>\n<figure id=\"attachment_6942\" aria-describedby=\"caption-attachment-6942\" style=\"width: 585px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.nrc-cnrc.gc.ca\/eng\/news\/nrc\/2010\/10\/04\/clock-inms.html\" target=\"_blank\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-6942 \" title=\"NRC_optical clock\" src=\"http:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2010\/12\/NRC_optical-clock.jpg\" alt=\"\" width=\"585\" height=\"391\" \/><\/a><figcaption id=\"caption-attachment-6942\" class=\"wp-caption-text\">NRC\u5149\u5b78\u539f\u5b50\u9418\u7684\u4e00\u90e8\u5206\uff08\u5716\u7247\uff0fNRC\uff09<\/figcaption><\/figure>\n<p>\u3000\u3000\u52a0\u62ff\u5927\u6e25\u592a\u83ef\u5e02 \uff08Ottawa\uff09\u7684NRC\u570b\u5bb6\u91cf\u5ea6\u6a19\u6e96\u7814\u7a76\u6240\uff08NRC Institute for National Measurement Standards, NRC-INMS\uff09\u4eca\u5e74\u4e94\u6708\u6210\u529f\u5730\u6355\u7372\u4e26\u5206\u96e2\u51fa\u9376\uff08strontium\uff09\u7684\u55ae\u4e00\u96e2\u5b50\uff0c\u4e26\u4f7f\u7528\u5f71\u50cf\u651d\u5f71\u7cfb\u7d71\uff08imaging camera system\uff09\u548c\u5149\u5b50\u8a08\u6578\u5149\u96fb\u500d\u589e\u7ba1\uff08photon-counting photomultiplier\uff09\u4f86\u5075\u6e2c\u5b83\u7684\u87a2\u5149\u3002\u9019\u9805\u6210\u679c\u4ee3\u8868\u671d\u5411\u5718\u968a\u76ee\u6a19\u7684\u91cd\u5927\u9032\u5c55\uff0c\u65e8\u5728\u5efa\u7acb\u3001\u904b\u4f5c\u53ca\u8a55\u4f30\u4e00\u500b\u6975\u70ba\u7cbe\u78ba\u7684\u5149\u539f\u5b50\u9418\uff08optical atomic clock\uff09\uff0c\u4e26\u4e14\u6700\u7d42\u53ef\u80fd\u6703\u6709\u52a9\u65bc\u958b\u62d3\u7269\u7406\u5b78\u7684\u65b0\u9818\u57df\u3002<\/p>\n<p><strong>\u3010\u5149\u9418\u662f\u4ec0\u9ebc\uff1f\u3011<\/strong><\/p>\n<p>\u3000\u3000\u6240\u6709\u7684\u6642\u9418\u90fd\u6709\u5169\u500b\u4e3b\u8981\u7d44\u6210\u90e8\u4efd\uff1a\u7522\u751f\u7cbe\u78ba\u6642\u9593\u9593\u9694\u7684\u65b9\u6cd5\uff0c\u4ee5\u53ca\u8a08\u6578\u6642\u9593\u9593\u9694\u7684\u65b9\u6cd5\u3002\u6a5f\u68b0\u9418\u5167\u6709\u9418\u64fa\u4ee5\u4e00\u79d2\u7684\u6642\u9593\u9593\u9694\u4f86\u56de\u64fa\u52d5\uff0c\u800c\u9f52\u8f2a\u8a18\u9304\u8457\u9418\u64fa\u64fa\u52d5\u7684\u6b21\u6578\u3002<!--more--><\/p>\n<p>\u3000\u3000NRC \u7684\u5149\u9418\u7522\u751f\u6975\u5c0f\u7684\u6642\u9593\u9593\u9694\uff0c\u7279\u5225\u662f\u5f9e\u5149\u983b\u6a19\u6e96\u7522\u751f\u7684\u632f\u76ea\u5149\u6ce2\u7684\u898f\u5f8b\u9031\u671f\uff0c\u9019\u500b\u5149\u983b\u6a19\u6e96\u662f\u4ee5\u9376\u96e2\u5b50\u5438\u6536\u5149\u4f86\u63a7\u5236\u7684\u96f7\u5c04\u983b\u7387\u70ba\u57fa\u790e\u3002\u70ba\u4e86\u8a08\u6578\u632f\u76ea\u7684\u6b21 \u6578\uff0cNRC\u7684\u539f\u578b\u5149\u539f\u5b50\u9418\u63a1\u7528\u57fa\u65bc\u98db\u79d2\uff08femtosecond\uff09\u96f7\u5c04\u7cfb\u7d71\u7684\u5149\u7e96\u5149\u983b\u68b3\uff08fibre-based optical frequency comb\uff09\uff0c\u8a72\u96f7\u5c04\u7cfb\u7d71\u73fe\u5728\u53ef\u4ee5\u81ea\u884c\u904b\u4f5c\u597d\u5e7e\u500b\u661f\u671f\u7684\u6642\u9593\u3002\u3000<\/p>\n<figure style=\"width: 339px\" class=\"wp-caption alignright\"><img decoding=\"async\" class=\"   \" title=\"Chip-Scale Atomic Clock Unveiled by NIST \" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/e\/e0\/ChipScaleClock2_HR.jpg\/606px-ChipScaleClock2_HR.jpg\" alt=\"\" width=\"339\" height=\"335\" \/><figcaption class=\"wp-caption-text\">\u7f8e\u570b\u570b\u7acb\u6a19\u6e96\u6280\u8853\u7814\u7a76\u6240\uff08NIST\uff09\u7684\u6676\u7247\u578b\u539f\u5b50\u9418\uff08Chip-Scale Atomic Clock\uff09<\/figcaption><\/figure>\n<p>\u3000\u3000NRC-INMS\u8a08\u756b\u4e3b\u6301\u4eba\u4e4b\u4e00\u7684\u99ac\u5fb7\u4f0a\uff08Alan Madej\uff09\u535a\u58eb\u8868\u793a\uff0c\u5149\u539f\u5b50\u9418\u662f\u8a08\u6642\u7684\u91cd\u5927\u8b8a\u9769\uff0c\u4e5f\u662f\u539f\u5b50\u91cf\u6e2c\u8207\u5206\u5b50\u7269\u7406\u7684\u8b8a\u9769\u3002\u9019\u5f71\u97ff\u5230\u672a\u4f86\u6211\u5011\u5c07\u5982\u4f55\u63a7\u5236\u5149\u7dda\u548c\u505a\u7cbe\u5bc6\u7684\u91cf\u5ea6\u3002\u53e6\u4e00\u4f4d\u8a08\u756b\u4e3b\u6301\u4eba\u662f\u675c\u6bd4\uff08Pierre Dub\u00e9\uff09\u535a\u58eb\u3002<\/p>\n<p>\u3000\u3000\u99ac\u5fb7\u4f0a\u8868\u793a\uff0c\u5982\u540c\u5176\u4ed6\u9418\u9336\uff0c\u5149\u539f\u5b50\u9418\u57fa\u672c\u4e0a\u662f\u91cf\u5ea6\u4e8b\u4ef6\u767c\u751f\u4e4b\u9593\u6240\u6d41\u901d\u7684\u6642\u9593\u7684\u8a2d\u5099\u3002\u7136\u800c\u5b83\u6709\u53ef\u80fd\u6bd4\u73fe\u6709\u7684\u9418\u9336\u66f4\u7cbe\u78ba\u3001\u6e96\u78ba\u5730\u91cf\u5ea6\u6642\u9593\u3002\u76ee\u524d\uff0c\u4e16\u754c\u5fae\u6ce2\u539f\u5b50\u9418 \uff08microwave atomic clock\uff09\u7684\u7cbe\u78ba\u5ea6\u7d043\u52305\u00d710<sup>-16<\/sup>\u79d2\uff0c\u800c\u7406\u8ad6\u4e0a\u5149\u539f\u5b50\u9418\u7cbe\u78ba\u5ea6\u7684\u6975\u9650\u7d04\u70ba10<sup>-18<\/sup>\u79d2\uff0c\u6216\u6700\u591a\u591a\u51fa\u4e00\u767e\u500d\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u672a\u4f86\u7684\u5149\u539f\u5b50\u9418\u6bcf\u4e00\u5e74\u589e\u52a0 \u8207\u640d\u5931\u4e0d\u6703\u8d85\u904e\u5341\u5104\u5206\u4e4b\u4e00\u79d2\u3002<\/p>\n<p>\u3000\u3000\u90a3\u9ebc\uff0c\u70ba\u4ec0\u9ebc\u9019\u500b\u4e16\u754c\u6703\u9700\u8981\u7528\u5230\u9019\u7a2e\u5c64\u7d1a\u7684\u7cbe\u78ba\u5ea6\uff1f\u99ac\u5fb7\u4f0a\u8a8d\u70ba\uff0c\u5982\u679c\u6c92\u6709\u7a69\u5b9a\u6539\u5584\u6211\u5011\u91cf\u5ea6\u57fa\u672c\u55ae \u4f4d\u5982\u79d2\u3001\u516c\u5c3a\u3001\u516c\u65a4\u7684\u80fd\u529b\uff0c\u7269\u7406\u5b78\u9032\u5c55\u6700\u7d42\u5c07\u9677\u65bc\u505c\u9813\u3002 Madej\u535a\u58eb\u8868\u793a\uff0c\u5e7e\u5341\u5e74\u524d\u6c92\u6709\u4eba\u8a8d\u70ba\u6211\u5011\u7684\u6c11\u7528\u8a08\u6642\u91cf\u5ea6\u6703\u9700\u8981\u512a\u65bc10<sup>-10<\/sup>\u79d2\uff0c\u4f46\u96a8\u8457\u6709\u66f4\u9ad8\u7cbe\u78ba\u5ea6\u7684\u5fae\u6ce2\u539f\u5b50\u9418\u7684\u51fa\u73fe\uff0c\u4fc3\u9032\u4e86\u5168\u7403\u5b9a\u4f4d\u7cfb\u7d71 \uff08GPS\uff09\u7684\u958b\u767c\u3002\u73fe\u5728\uff0c\u885b\u661f\u4e0a\u4e5f\u8f09\u6709\u539f\u5b50\u9418\uff0c\u53ef\u4ee5\u7acb\u5373\u627e\u5230\u4f60\u6240\u5728\u7684\u4f4d\u7f6e\u3002<\/p>\n<p>\u3000\u3000\u99ac\u5fb7\u4f0a\u535a\u58eb\u9810\u6e2c\uff0c\u7576\u6211\u5011\u9032\u4e00\u6b65\u63d0\u9ad8\u8a08\u6642\u7684\u7cbe\u78ba\u5ea6\uff0c\u9996\u5148\u6703\u61c9 \u7528\u65bc\u57fa\u790e\u7269\u7406\u5be6\u9a57\u4e2d\u3002\u6211\u5011\u53ef\u4ee5\u66f4\u6e96\u78ba\u5730\u6e2c\u8a66\u611b\u56e0\u65af\u5766\u7684\u5ee3\u7fa9\u76f8\u5c0d\u8ad6\u3002\u5149\u539f\u5b50\u9418\u4e5f\u53ef\u4ee5\u8b93\u79d1\u5b78\u5bb6\u7814\u7a76\u91cd\u529b\u7684\u5f71\u97ff\uff0c\u6216\u8005\u8b93\u592a\u7a7a\u8239\u5728\u592a\u967d\u7cfb\u6700\u9060\u7684\u5730\u65b9\u7cbe\u78ba\u5730\u5c0e\u822a\u3002\u96d6 \u7136\u5f88\u96e3\u9810\u6e2c\u5546\u696d\u4e0a\u7684\u61c9\u7528\uff0c\u5149\u539f\u5b50\u9418\u4e00\u5b9a\u6703\u958b\u555f\u65b0\u7684\u53ef\u80fd\u6027\uff0c\u6b63\u5982\u5149\u7684\u5229\u7528\u958b\u95e2\u4e86\u5149\u7e96\u548c\u5149\u7e96\u901a\u8a0a\u7684\u4e16\u754c\u3002<\/p>\n<p><strong>\u3010\u4f60\u77e5\u9053\u55ce\uff1f\u3011<\/strong><\/p>\n<p>\u3000\u3000\u92ab\u9418\u73fe\u5728\u662f\u4e16\u754c\u4e0a\u5b9a\u7fa9\u79d2\u7684\u4e3b\u8981\u6a19\u6e96\u3002\u81ea1967\u5e74\u4ee5\u4f86\uff0c\u79d2\u5c31\u88ab\u5b9a\u7fa9\u70ba\u92ab\u539f\u5b50\u5728\u80fd\u968e\u9593\u56fa\u5b9a\u6fc0\u767c\u7684\u8f3b\u5c04\u632f\u76ea9,192,631,770\u6b21\u6240\u6301\u7e8c\u7684\u6642\u9593\u3002<\/p>\n<p>\u3000\u3000\u5404\u570b\u570b\u5bb6\u5ea6\u91cf\u8861\u6a19\u6e96\u6a5f\u69cb\u7684\u79d1\u5b78\u5bb6\u671f\u671b\uff0c\u76ee\u524d\u5728\u516c\u5236\uff08metric\uff09\u7cfb\u7d71\u4f5c\u70ba\u9996\u8981\u79d2\u7684\u5b9a\u7fa9\u6a19\u6e96\u7684\u92ab\u9418\uff0c\u4e5f\u8a31\u5728\u5e7e\u5e74\u4e4b\u5167\u5c31\u6703\u88ab\u5149\u539f\u5b50\u9418\u53d6\u4ee3\u3002\u4e0d\u904e\uff0c\u76ee\u524d\u9084\u4e0d\u6e05\u695a \u54ea\u4e00\u7a2e\u985e\u578b\u7684\u5149\u539f\u5b50\u9418\u6703\u88ab\u7528\u4f5c\u91cd\u65b0\u5b9a\u7fa9\u7684\u6a19\u6e96\u3002\u7121\u8ad6\u6642\u9418\u7684\u57fa\u790e\u662f\u55ae\u4e00\u6355\u7372\u7684\u539f\u5b50\u96e2\u5b50\u5982\u9376\u96e2\u5b50\uff0c\u6216\u8005\u662f\u6355\u7372\u4e2d\u6027\u539f\u5b50\u7684\u6676\u683c\uff08lattice\uff09\uff0c\u4f3c\u4e4e\u90fd\u662f\u5f88\u597d \u7684\u9078\u64c7\uff0c\u4f46\u54ea\u4e00\u7a2e\u539f\u5b50\u624d\u662f\u6700\u597d\u7684\u9078\u64c7\u9084\u4e0d\u660e\u986f\u3002\u7136\u800c\u5373\u4f7f\u4e16\u754c\u5404\u5730\u90fd\u63a1\u7528\u5149\u9418\uff0c\u92ab\u9418\u53ca\u5176\u4ed6\u975e\u5149\u539f\u5b50\u9418\u4ecd\u5c07\u7e7c\u7e8c\u5728\u6280\u8853\u61c9\u7528\u4e0a\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff0c\u56e0\u70ba\u5b83\u5011\u6bd4\u5149\u539f\u5b50\u9418\u66f4\u7c21\u55ae\u3001\u66f4\u5c0f\u5de7\u3002<\/p>\n<p>\u3000\u3000<\/p>\n<pre><span style=\"color: #333333;\">\u539f\u6587\u51fa\u8655\uff1a<\/span><a href=\"http:\/\/www.nrc-cnrc.gc.ca\/eng\/news\/nrc\/2010\/10\/04\/clock-inms.html\" target=\"_blank\"><span style=\"color: #333333;\">The future of timekeeping<\/span><\/a><span style=\"color: #333333;\">\uff08National Research Council Canada\uff09\u2027\u6587\u5b57\u90e8\u5206\u63d0\u4f9b\uff1a<\/span><a href=\"http:\/\/stn.nsc.gov.tw\/view_detail.asp?doc_uid=0991216011\" target=\"_blank\"><span style=\"color: #333333;\">\u570b\u79d1\u6703\u570b\u969b\u79d1\u6280\u5408\u4f5c\u7c21\u8a0a\u7db2<\/span><\/a><\/pre>\n<pre><span style=\"color: #333333;\">\u5ef6\u4f38\u95b1\u8b80\uff1a<\/span><a href=\"http:\/\/www.nature.com\/nphys\/journal\/v4\/n12\/full\/nphys1146.html\"><span style=\"color: #333333;\">Optical lattice clocks: Keeping time in three dimensions<\/span><\/a><span style=\"color: #333333;\">\uff08<em>Nature<\/em>\uff09\u3001<\/span><a href=\"http:\/\/www.nrc-cnrc.gc.ca\/eng\/projects\/inms\/trapped-ion.html\" target=\"_blank\"><span style=\"color: #333333;\">Optical Frequency Standard based on a Single Trapped Ion<\/span><\/a><span style=\"color: #333333;\">\uff08National Research Council Canad\uff09<\/span><\/pre>\n<p><span style=\"color: #333333;\"><strong><span style=\"color: #003366;\">\u8cac\u4efb\u7de8\u8f2f\uff1aMissZoe<\/span><\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u25a0 \u52a0\u62ff\u5927\u570b\u5bb6\u7814\u7a76\u9662\uff08NRC\uff09\u7684\u7814\u7a76\u4eba\u54e1<\/p>\n","protected":false},"author":20,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,3293],"tags":[225,596,293],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/6940"}],"collection":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6940"}],"version-history":[{"count":21,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/6940\/revisions"}],"predecessor-version":[{"id":27604,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/6940\/revisions\/27604"}],"wp:attachment":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}