{"id":22292,"date":"2020-07-02T00:00:00","date_gmt":"2020-07-01T16:00:00","guid":{"rendered":"https:\/newsletter.sinica.edu.tw\/?p=22292"},"modified":"2021-12-30T05:35:35","modified_gmt":"2021-12-29T21:35:35","slug":"%e9%9b%bb%e5%ad%90%e8%87%aa%e6%97%8b%e5%bc%95%e7%88%86%e4%b8%8b%e4%b8%80%e4%bb%a3%e8%a8%98%e6%86%b6%e9%ab%94%e9%9d%a9%e5%91%bd-%e9%8c%a2%e5%98%89%e9%99%b5%e9%99%a2%e5%a3%ab%e5%b0%88%e8%a8%aa","status":"publish","type":"post","link":"https:\/newsletter.sinica.edu.tw\/22292\/","title":{"rendered":"\u96fb\u5b50\u81ea\u65cb\u5f15\u7206\u4e0b\u4e00\u4ee3\u8a18\u61b6\u9ad4\u9769\u547d\u2014\u9322\u5609\u9675\u9662\u58eb\u5c08\u8a2a"},"content":{"rendered":"

\u96fb\u5b50\u81ea\u65cb\u6709\u591a\u795e\u5947\uff1f<\/strong><\/p>\n

\u96fb\u5b50\uff0c\u662f\u4e16\u754c\u4e0a\u6700\u795e\u7955\u7684\u7c92\u5b50\u4e4b\u4e00\u3002\u5b83\u4e0d\u53ea\u5e36\u6709\u8ca0\u96fb\u8377\uff0c\u9084\u6703\u300c\u81ea\u65cb\u300d\u3002\u9019\u500b\u5947\u7570\u7684\u7279\u6027\uff0c\u662f\u6574\u500b\u7269\u8cea\u4e16\u754c\u7684\u6839\u57fa\uff0c\u4e5f\u662f\u7576\u4ee3\u78c1\u5b78\u7684\u95dc\u9375\u5b57\uff0c\u4fc3\u6210\u78c1\u6027\u8a18\u61b6\u9ad4\u7b49\u91cd\u5927\u79d1\u6280\u7a81\u7834\u3002\u7814\u4e4b\u6709\u7269<\/a>\u5c08\u8a2a\u4e2d\u7814\u9662\u9662\u58eb\u3001\u7d04\u7ff0\u970d\u666e\u91d1\u65af\u5927\u5b78\u7269\u7406\u7cfb\u9322\u5609\u9675\u8b1b\u5ea7\u6559\u6388\uff0c\u5a13\u5a13\u9053\u4f86\u96fb\u5b50\u81ea\u65cb\u5982\u4f55\u958b\u555f\u300c\u73fe\u4ee3\u78c1\u5b78\u7684\u9ec3\u91d1\u6642\u4ee3\u300d\u3002<\/p>\n

\"\u4e2d\u7814\u9662\u9322\u5609\u9675\u9662\u58eb\uff0c\u4efb\u6559\u65bc\u7f8e\u570b\u7d04\u7ff0\u970d\u666e\u91d1\u65af\u5927\u5b78\uff0c\u4e26\u70ba

\u4e2d\u7814\u9662\u9322\u5609\u9675\u9662\u58eb\uff0c\u4efb\u6559\u65bc\u7f8e\u570b\u7d04\u7ff0\u970d\u666e\u91d1\u65af\u5927\u5b78\uff0c\u4e26\u70ba Jacob L. Hain \u8b1b\u5ea7\u6559\u6388\uff0c\u5c08\u6ce8\u65bc\u78c1\u6027\u3001\u8d85\u5c0e\u9ad4\u3001\u81ea\u65cb\u96fb\u5b50\u5b78\u548c\u7d0d\u7c73\u7d50\u69cb\u6750\u6599\u7684\u7814\u7a76\u3002\u9322\u6559\u6388\u4e0d\u4f46\u662f\u7f8e\u570b\u7269\u7406\u5b78\u6703\u548c\u7f8e\u570b\u79d1\u5b78\u4fc3\u9032\u5b78\u6703\u7684\u6703\u58eb\uff0c\u69ae\u7372\u7f8e\u570b\u7269\u7406\u5b78\u6703\u7684\u5927\u885b\u963f\u5fb7\u52d2\u734e (David Adler Award)\uff0c\u66f4\u5f97\u5230\u570b\u969b\u7269\u7406\u8207\u61c9\u7528\u7269\u7406\u806f\u76df (IUPAP) \u78c1\u5b78\u734e\u8207\u5948\u723e\u734e\u7ae0 (N\u00e9el Medal)\u3002 \u651d\u5f71\u2502\u6797\u6d35\u5b89<\/p><\/div>\n

 <\/p>\n

\u96fb\u5b50\u81ea\u65cb = \u65cb\u8f49\u7684\u96fb\u5b50\uff1f<\/b><\/strong><\/h2>\n

\u9996\u5148\uff0c\u300c\u81ea\u65cb 1\/2 \u300d\u7684\u96fb\u5b50\u662f\u600e\u9ebc\u56de\u4e8b\uff1f\u96e3\u9053\u96fb\u5b50\u6703\u8f49\uff0c\u800c\u4e14\u6c38\u9060\u53ea\u8f49\u534a\u5708\uff1f<\/p>\n

\u96fb\u5b50\u81ea\u65cb\uff0c\u6307\u7684\u662f\u96fb\u5b50\u5e36\u6709\u7684\u4e00\u7a2e\u91cf\u5b50\u6027\u8cea\uff0c\u7c21\u55ae\u8aaa\uff0c\u79d1\u5b78\u5bb6\u89c0\u5bdf\u5230\u4e86\u96fb\u5b50\u5177\u6709\u81ea\u65cb\u89d2\u52d5\u91cf\uff0c\u800c\u5e36\u96fb\u7684\u7c92\u5b50\u53ea\u8981\u65cb\u8f49\uff0c\u5c31\u6703\u7522\u751f\u78c1\u5834\u3002\u63db\u53e5\u8a71\u8aaa\uff0c\u6bcf\u500b\u96fb\u5b50\u4e0d\u53ea\u662f\u5e36\u8457\u8ca0\u96fb\u8377\u7684\u4e00\u500b\u5c0f\u7c92\u5b50\uff0c\u9084\u662f\u4e00\u500b\u300c\u8d85\u7d1a\u8ff7\u4f60\u78c1\u9435\u300d(\u78c1\u77e9)\u3002<\/p>\n

\u4e0d\u904e\uff0c\u5728\u4e00\u822c\u5de8\u89c0\u7684\u4e16\u754c\u88e1\uff0c\u7269\u9ad4\u5177\u6709\u89d2\u52d5\u91cf\u4ee3\u8868\u6b63\u5728\u65cb\u8f49\uff0c\u4f46\u5728\u91cf\u5b50\u4e16\u754c\u88e1\uff0c\u96fb\u5b50\u96d6\u6709\u89d2\u52d5\u91cf\uff0c\u537b\u4e0d\u80fd\u7406\u89e3\u6210\u96fb\u5b50\u771f\u7684\u5728\u8f49\u3002\u9322\u5609\u9675\u89e3\u91cb\uff1a\u300c\u96fb\u5b50\u662f\u500b\u9ad4\u7a4d\u7121\u9650\u5c0f\u7684\u7c92\u5b50\uff0c\u6c92\u6709\u9ad4\u7a4d\uff0c\u6240\u4ee5\u4e0d\u53ef\u80fd\u8f49\u52d5\uff0c\u81ea\u65cb\u5b8c\u5168\u662f\u91cf\u5b50\u529b\u5b78<\/a>\u7684\u6982\u5ff5\u3002\u300d\u6c92\u6709\u9ad4\u7a4d\uff0c\u537b\u6709\u89d2\u52d5\u91cf\uff0c\u91cf\u5b50\u4e16\u754c\u5c31\u662f\u9019\u9ebc\u4e0d\u53ef\u601d\u8b70\uff01<\/p>\n

\u91cf\u5b50\u4e16\u754c\u7684\u53e6\u4e00\u500b\u4e0d\u601d\u8b70\uff0c\u5728\u65bc\u6240\u6709\u6771\u897f\u90fd\u300c\u91cf\u5b50\u5316\u300d\uff0c\u96fb\u5b50\u81ea\u65cb\u4e5f\u4e00\u6a23\u2500\u2500\u96fb\u5b50\u81ea\u65cb\u89d2\u52d5\u91cf\u503c\u5728\u78c1\u5834\u4e2d\u53ea\u80fd\u662f 1\/2 \u6216 -1\/2 \uff0c\u6c92\u6709\u5176\u4ed6\u53ef\u80fd\u7684\u503c\uff0c\u9019\u5c31\u662f\u300c\u96fb\u5b50\u81ea\u65cb 1\/2 \u300d\u7684\u7531\u4f86\u3002\u8a31\u591a\u5176\u4ed6\u7684\u7c92\u5b50\u4e5f\u6709\u81ea\u65cb\u89d2\u52d5\u91cf\u503c\uff0c\u4f46\u7d71\u7d71\u53ea\u80fd\u662f 1\/2 \u7684\u500d\u6578\uff0c\u800c\u4e14\u76f8\u9130\u4e00\u5b9a\u5dee 1 \uff0c\u4f8b\u5982\u81ea\u65cb 1 [1, 0, -1] \u6216\u662f\u81ea\u65cb 3\/2 [3\/2, 1\/2, -1\/2, -3\/2] \u3002<\/p>\n

\"\u96fb\u5b50\u96d6\u6709\u89d2\u52d5\u91cf\uff0c\u537b\u4e0d\u80fd\u7406\u89e3\u6210\u96fb\u5b50\u771f\u7684\u5728\u8f49\u3002\u56e0\u70ba\u96fb\u5b50\u662f\u500b\u9ad4\u7a4d\u7121\u9650\u5c0f\u7684\u7c92\u5b50\uff0c\u6c92\u6709\u9ad4\u7a4d\uff0c\u6240\u4ee5\u4e0d\u53ef\u80fd\u8f49\u52d5\uff0c\u81ea\u65cb\u5b8c\u5168\u662f\u91cf\u5b50\u529b\u5b78\u7684\u6982\u5ff5\u3002\u800c\u4e14\u96fb\u5b50\u81ea\u65cb\u89d2\u52d5\u91cf\u503c\u5728\u78c1\u5834\u4e2d\u53ea\u80fd\u662f

\u96fb\u5b50\u96d6\u6709\u89d2\u52d5\u91cf\uff0c\u537b\u4e0d\u80fd\u7406\u89e3\u6210\u96fb\u5b50\u771f\u7684\u5728\u8f49\u3002\u56e0\u70ba\u96fb\u5b50\u662f\u500b\u9ad4\u7a4d\u7121\u9650\u5c0f\u7684\u7c92\u5b50\uff0c\u6c92\u6709\u9ad4\u7a4d\uff0c\u6240\u4ee5\u4e0d\u53ef\u80fd\u8f49\u52d5\uff0c\u81ea\u65cb\u5b8c\u5168\u662f\u91cf\u5b50\u529b\u5b78\u7684\u6982\u5ff5\u3002\u800c\u4e14\u96fb\u5b50\u81ea\u65cb\u89d2\u52d5\u91cf\u503c\u5728\u78c1\u5834\u4e2d\u53ea\u80fd\u662f 1\/2 \u6216 -1\/2 \uff0c\u6c92\u6709\u5176\u4ed6\u53ef\u80fd\u7684\u503c\uff0c\u9019\u5c31\u662f\u300c\u96fb\u5b50\u81ea\u65cb 1\/2 \u300d\u7684\u7531\u4f86\u3002 \u5716\u8aaa\u8a2d\u8a08\u2502\u9ec3\u66c9\u541b\u3001\u6797\u6d35\u5b89<\/p><\/div>\n

 <\/p>\n

\u5982\u6b64\u9055\u53cd\u76f4\u89ba\u7684\u96fb\u5b50\u81ea\u65cb\uff0c\u7a76\u7adf\u662f\u600e\u9ebc\u88ab\u767c\u73fe\u7684\u5462\uff1f<\/p>\n

 <\/p>\n

\u7d14\u5c6c\u610f\u5916\uff01\u767c\u73fe\u96fb\u5b50\u81ea\u65cb 1\/2<\/b><\/strong><\/h2>\n

\u96fb\u5b50\u81ea\u65cb\u7684\u767c\u73fe\uff0c\u4f86\u81ea\u4e00\u5834\u300c\u60f3\u4e0d\u5230\u53ef\u4ee5\u6210\u529f\u300d\u7684\u5be6\u9a57\u3002 1913 \u5e74\uff0c\u6ce2\u8033<\/a>\uff08 Niels Bohr \uff09\u63d0\u51fa\u89d2\u52d5\u91cf\u91cf\u5b50\u5316\u7684\u6982\u5ff5\uff0c\u4e5f\u5c31\u662f\u5728\u91cf\u5b50\u4e16\u754c\uff0c\u89d2\u52d5\u91cf\u5fc5\u5b9a\u662f\u300c\u666e\u6717\u514b\u5e38\u6578<\/a>\u9664\u4ee5 2\u03c0 \u300d\uff08\u7b26\u865f\u70ba \u210f \uff09\u7684\u6574\u6578\u500d\uff0c\u4f8b\u5982\u67d0\u7a2e\u7c92\u5b50\u5177\u6709\u7684\u89d2\u52d5\u91cf\u662f \u210f \u7684 1 \u500d\uff0c\u4ee3\u8868\u5728\u89c0\u5bdf\u9019\u7a2e\u7c92\u5b50\u6642\uff0c\u89d2\u52d5\u91cf\u53ea\u53ef\u4ee5\u662f \u210f \u7684 -1 \u3001 0 \u3001 +1 \u500d\uff0c\u4e0d\u80fd\u662f \u210f \u7684 0.1 \u500d\u3001 0.2 \u500d\u7b49\u7b49\u4ecb\u65bc\u4e2d\u9593\u7684\u503c\u3002<\/p>\n

\u9019\u500b\u6982\u5ff5\u5c0d\u7576\u6642\u7684\u4eba\u4f86\u8aaa\u592a\u524d\u885b\uff0c\u9055\u53cd\u76f4\u89ba\uff0c\u53cd\u5c0d\u8005\u5305\u62ec\u63a5\u4e0b\u4f86\u4e0a\u5834\u7684\u5169\u4f4d\u4e3b\u89d2\u2500\u2500\u65af\u7279\u6069<\/a>\uff08 Otto Stern \uff09\u8207\u683c\u62c9\u8d6b<\/a>\uff08 Walther Gerlach )\u3002<\/p>\n

\u65af\u7279\u6069\u8207\u683c\u62c9\u8d6b\u65bc 1922 \u5e74\u8a2d\u8a08\u4e86\u4e00\u500b\u5be6\u9a57\uff0c\u672c\u610f\u70ba\u300c\u53cd\u99c1\u300d\u6ce2\u8033\u7684\u8aaa\u6cd5\u3002\u4ed6\u5011\u5c07\u300c\u9280\u300d\u84b8\u767c\uff0c\u7522\u751f\u9280\u539f\u5b50\u675f\uff0c\u7a7f\u904e\u4e00\u500b\u4e0d\u5747\u52fb\u7684\u78c1\u5834\uff0c\u6295\u5c04\u5230\u5c4f\u5e55\u4e0a\u3002\u5728\u901a\u904e\u4e0d\u5747\u52fb\u78c1\u5834\u6642\uff0c\u5e36\u6709\u89d2\u52d5\u91cf\u7684\u9280\u539f\u5b50\u6703\u53d7\u5230\u504f\u6298\u3002\u5982\u679c\u89d2\u52d5\u91cf\u4e0d\u662f\u91cf\u5b50\u5316\u7684 (\u5177\u6709\u5404\u7a2e\u65b9\u5411\u7684\u89d2\u52d5\u91cf)\uff0c\u504f\u6298\u7684\u89d2\u5ea6\u5c07\u6709\u7121\u9650\u53ef\u80fd\uff0c\u5c4f\u5e55\u4e0a\u61c9\u662f\u4e00\u7247\u9023\u7e8c\u5206\u5e03\u7684\u9280\u539f\u5b50\u3002\u4f46\u5be6\u9a57\u7d50\u679c\u51fa\u4eba\u610f\u8868\uff1a\u9280\u539f\u5b50\u504f\u6298\u7684\u89d2\u5ea6\u53ea\u6709\u5169\u500b\u3002\u63db\u8a00\u4e4b\uff0c\u89d2\u52d5\u91cf\u771f\u7684\u662f\u91cf\u5b50\u5316\u7684\uff01\u5982\u4ee5\u4e0b\u5f71\u7247\u6240\u793a\uff1a<\/p>\n

\u96fb\u5b50\u81ea\u65cb\u89e3\u8aaa\u5f71\u7247\uff1a<\/strong><\/p>\n