{"id":187686,"date":"2019-10-18T06:30:48","date_gmt":"2019-10-17T22:30:48","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=187686"},"modified":"2019-10-17T15:09:51","modified_gmt":"2019-10-17T07:09:51","slug":"%e5%8f%8d%e5%ae%87%e7%a7%b0-%e6%97%b6%e9%97%b4%e5%af%b9%e7%a7%b0%e7%b3%bb%e7%bb%9f%e7%9a%84%e5%a5%87%e5%bc%82%e7%82%b9%e6%8b%93%e6%89%91%e7%bb%93%e6%9e%84%e5%8f%8a%e5%85%b6%e5%9c%a8%e5%85%89%e5%ad%90","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=187686","title":{"rendered":"\u53cd\u5b87\u79f0-\u65f6\u95f4\u5bf9\u79f0\u7cfb\u7edf\u7684\u5947\u5f02\u70b9\u62d3\u6251\u7ed3\u6784\u53ca\u5176\u5728\u5149\u5b50\u8c03\u63a7\u4e2d\u7684\u5e94\u7528"},"content":{"rendered":"<p><strong><b>\u7814\u7a76\u80cc\u666f<\/b><\/strong><\/p>\n<p>\u201c\u975e\u5384\u7c73\u201d\u7684\u6982\u5ff5\u6700\u65e9\u8d77\u6e90\u4e8e\u91cf\u5b50\u529b\u5b66\uff0c\u79d1\u5b66\u5bb6\u4eec\u53d1\u73b0\u5728\u5177\u6709\u5b87\u79f0\u2212\u65f6\u95f4\u5bf9\u79f0\u6027\uff08Parity-time symmetry\uff0c\u4ee5\u4e0b\u7b80\u79f0PT\u5bf9\u79f0\uff09\u7684\u975e\u5384\u7c73\u7cfb\u7edf\u4e2d\uff0c\u7cfb\u7edf\u7684\u54c8\u5bc6\u987f\u91cf\u53ef\u4ee5\u5b58\u5728\u5b9e\u6570\u7684\u672c\u5f81\u503c\uff0c\u8fd9\u9769\u65b0\u4e86\u666e\u6717\u514b\u7b49\u5148\u9a71\u57fa\u4e8e\u5384\u7c73\u7cfb\u7edf\u5efa\u7acb\u7684\u4f20\u7edf\u91cf\u5b50\u529b\u5b66\u7406\u8bba\u3002\u975e\u5384\u7c73\u7cfb\u7edf\u7684\u5173\u952e\u53c2\u6570\u4e4b\u4e00\u662f\u975e\u5384\u7c73\u5ea6\uff0c\u5176\u5b58\u5728\u4f1a\u4f7f\u7cfb\u7edf\u7684\u80fd\u91cf\u4e0d\u5b88\u6052\uff0c\u5efa\u7acb\u975e\u5384\u7c73\u5ea6\u662f\u6784\u9020\u975e\u5384\u7c73\u7cfb\u7edf\u7684\u91cd\u8981\u57fa\u7840\u3002\u5728\u5149\u5b50\u5b66\u4e2d\uff0c\u7535\u78c1\u6ce2\u53ef\u4ee5\u5f88\u5bb9\u6613\u7684\u4ece\u6750\u6599\u4e2d\u83b7\u53d6\u589e\u76ca\u548c\u635f\u8017\uff0c\u8fdb\u800c\u4e3a\u7cfb\u7edf\u5e26\u6765\u975e\u5384\u7c73\u5ea6\u3002\u57fa\u4e8e\u8be5\u5929\u7136\u72ec\u7279\u7684\u4f18\u52bf\uff0c\u5149\u5b50\u5b66\u6210\u4e3a\u4e86\u4e00\u4e2a\u7814\u7a76\u975e\u5384\u7c73\u7269\u7406\u7684\u91cd\u8981\u5e73\u53f0\uff0c\u5e76\u9010\u6e10\u53d1\u5c55\u4e86\u4e00\u95e8\u65b0\u7684\u5b66\u79d1\u2212\u975e\u5384\u7c73\u5149\u5b50\u5b66\u3002\u5728\u975e\u5384\u7c73\u5149\u5b66\u7cfb\u7edf\u4e2d\uff0c\u5f53\u975e\u5384\u7c73\u5ea6\uff08\u5373\u589e\u76ca\u6216\u635f\u8017\uff09\u589e\u5927\u65f6\uff0c\u7cfb\u7edf\u5b58\u5728\u4e00\u4e2a\u76f8\u53d8\u70b9\uff0c\u53eb\u505a\u5947\u5f02\u70b9\uff08Exceptional point\uff09\u3002\u5728\u5947\u5f02\u70b9\u5904\uff0c\u7cfb\u7edf\u7684\u591a\u4e2a\u672c\u5f81\u6001\u4f1a\u584c\u7f29\u6210\u4e00\u4e2a\uff0c\u5e26\u6765\u4e86\u8bb8\u591a\u65b0\u5947\u7684\u7269\u7406\u73b0\u8c61\u548c\u5e94\u7528\uff0c\u5305\u62ec\u635f\u8017\u8bf1\u5bfc\u4f4e\u9608\u503c\u6fc0\u5149\u5668\uff0c\u5947\u5f02\u70b9\u589e\u5f3a\u4f20\u611f\u7075\u654f\u5ea6\uff0c\u975e\u5bf9\u79f0\u6a21\u5f0f\u8f6c\u5316\uff0cPT\u5bf9\u79f0\u8bf1\u5bfc\u76f8\u5e72\u5b8c\u7f8e\u5438\u6536\u7b49\u3002<\/p>\n<p><strong><b>\u6210\u679c\u7b80\u4ecb<\/b><\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c<strong><b>\u5409\u6797\u5927\u5b66\u5f20\u65ed\u9716\u526f\u6559\u6388\u4e0e\u9999\u6e2f\u79d1\u6280\u5927\u5b66\u9648\u5b50\u4ead\u6559\u6388\u5408\u4f5c<\/b><\/strong>\uff0c\u5728\u8457\u540d\u5149\u5b66\u671f\u520a<strong><b>Light: Science &amp; Applications<\/b><\/strong>\u4e0a\u53d1\u8868\u7814\u7a76\u8bba\u6587\uff0c\u9898\u4e3a\uff1aDynamically encircling an exceptional point in anti-parity-time symmetric systems: asymmetric mode switching for symmetry-broken modes\u3002\u8be5\u7814\u7a76\u9762\u5411\u975e\u5384\u7c73\u7cfb\u7edf\u4e2d\u52a8\u6001\u73af\u7ed5\u5947\u5f02\u70b9\u8fd9\u4e00\u524d\u6cbf\u8bfe\u9898\uff0c\u63ed\u793a\u4e86\u53cd\u5b87\u79f0-\u65f6\u95f4\u5bf9\u79f0\u7cfb\u7edf\u7684\u62d3\u6251\u7ed3\u6784\u53ca\u5176\u5728\u5149\u5b50\u8c03\u63a7\u9886\u57df\u7684\u5e94\u7528\u3002<\/p>\n<p>\u5947\u5f02\u70b9\u72ec\u7279\u7684\u62d3\u6251\u7ed3\u6784\u5728\u8fd1\u4e9b\u5e74\u5f15\u8d77\u4e86\u7814\u7a76\u8005\u4eec\u5e7f\u6cdb\u7684\u5174\u8da3\u3002\u5728\u975e\u5384\u7c73\u5149\u5b66\u7cfb\u7edf\u4e2d\u6784\u9020\u4e00\u4e2a\u4e8c\u7ef4\u53c2\u6570\u7a7a\u95f4\uff0c\u7cfb\u7edf\u7684\u672c\u5f81\u503c\u5728\u8fd9\u4e2a\u53c2\u6570\u7a7a\u95f4\u4e0a\u7684\u5206\u5e03\u4f1a\u6784\u6210\u4e00\u4e2a\u81ea\u4ea4\u53c9\u7684\u9ece\u66fc\u9762\uff0c\u5373\u975e\u5384\u7c73\u7cfb\u7edf\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u5982\u56fe1a\u6240\u793a\u3002\u5b83\u6700\u6709\u8da3\u7684\u7279\u6027\u662f\uff0c\u5f53\u7cfb\u7edf\u4ece\u4e00\u4e2a\u672c\u5f81\u6001\u51fa\u53d1\u6cbf\u95ed\u5408\u8def\u5f84\u73af\u7ed5\u5947\u5f02\u70b9\u4e00\u5708\uff0c\u7cfb\u7edf\u7684\u7ec8\u6001\u4f1a\u4e0e\u521d\u59cb\u6001\u5b8c\u5168\u4e0d\u540c\uff08\u89c1\u56fe\u4e2d\u9ec4\u8272\u66f2\u7ebf\uff09\u3002\u4e0e\u4e4b\u76f8\u53cd\u7684\u662f\u5728\u5384\u7c73\u7cfb\u7edf\u4e2d\uff0c\u5f53\u7cfb\u7edf\u6cbf\u95ed\u5408\u8def\u5f84\u73af\u7ed5\u7b80\u5e76\u70b9\u4e00\u5708\uff0c\u672c\u5f81\u6001\u5e76\u4e0d\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u5982\u56fe1b\u6240\u793a\u3002\u66f4\u8fdb\u4e00\u6b65\uff0c\u5c06\u53c2\u6570\u7a7a\u95f4\u4e2d\u73af\u7ed5\u5947\u5f02\u70b9\u7684\u95ed\u5408\u56de\u8def\u4e0a\u6240\u6709\u70b9\u7684\u4fe1\u606f\u5305\u542b\u5728\u4e00\u4e2a\u7269\u7406\u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u5947\u5f02\u70b9\u52a8\u6001\u73af\u7ed5\uff08Dynamical encircling\uff09\u3002\u4e00\u4e2a\u5178\u578b\u7684\u7cfb\u7edf\u662f\u5149\u6ce2\u5bfc\uff0c\u901a\u8fc7\u8bbe\u8ba1\u6ce2\u5bfc\u6a2a\u622a\u9762\u7684\u7ed3\u6784\u53c2\u6570\u4f7f\u5176\u6cbf\u7740\u5149\u7684\u4f20\u64ad\u65b9\u5411\u4e0a\u8fde\u7eed\u53d8\u5316\uff08\u4f8b\u5982\u56fe3a\uff09\uff0c\u53ef\u4ee5\u8ba9\u5149\u5728\u6ce2\u5bfc\uff08\u5b9e\u7a7a\u95f4\uff09\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u6a21\u62df\u5728\u53c2\u6570\u7a7a\u95f4\u4e0a\u6cbf\u7740\u4e00\u4e2a\u95ed\u5408\u56de\u8def\u5bf9\u5947\u5f02\u70b9\u8fdb\u884c\u73af\u7ed5\u3002\u5728\u8fd9\u4e2a\u52a8\u6001\u73af\u7ed5\u5947\u5f02\u70b9\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7531\u4e8e\u975e\u5384\u7c73\u5ea6\u7684\u5b58\u5728\uff0c\u672c\u5f81\u6a21\u53ef\u4ee5\u5728\u884d\u5316\u8fc7\u7a0b\u4e2d\u53d1\u751f\u975e\u7edd\u70ed\u7684\u8df3\u53d8\u3002\u5728PT\u5bf9\u79f0\u7cfb\u7edf\u4e2d\uff0c\u7814\u7a76\u8005\u4eec\u5b9e\u73b0\u4e86\u5bf9\u79f0\u6a21\u548c\u53cd\u5bf9\u79f0\u6a21\u7684\u624b\u6027\u4f20\u8f93\u7279\u6027\u4ee5\u53ca\u975e\u5bf9\u79f0\u6a21\u5f0f\u8f6c\u5316\u5e94\u7528\uff1a\u987a\u65f6\u9488\u548c\u9006\u65f6\u9488\u52a8\u6001\u73af\u7ed5\u5947\u5f02\u70b9\u6240\u5f97\u5230\u7684\u7ec8\u6001\u662f\u4e0d\u540c\u7684\uff0c\u4e14\u7ec8\u6001\u4e0e\u7cfb\u7edf\u521d\u6001\u662f\u65e0\u5173\u7684\u3002\u8fd9\u4e00\u7279\u6027\u4e3a\u8bbe\u8ba1\u5149\u4e8c\u6781\u7ba1\u7b49\u91cd\u8981\u7247\u4e0a\u5149\u5b50\u7ed3\u6784\u5355\u5143\u63d0\u4f9b\u4e86\u53ef\u80fd\u3002\u7136\u800c\uff0c\u5728\u7247\u4e0a\u5149\u4f20\u8f93\u6240\u5e38\u7528\u7684\u5bf9\u79f0\u6027\u7834\u7f3a\u6a21\u5f0f\uff08\u5373\u4e00\u4e2a\u6a21\u5f0f\u53ea\u5206\u5e03\u5728\u4e00\u4e2a\u6ce2\u5bfc\u4e2d\uff09\uff0c\u53d7\u9650\u4e8ePT\u5bf9\u79f0\u7cfb\u7edf\u7684\u62d3\u6251\u7ed3\u6784\uff0c\u65e0\u6cd5\u5229\u7528\u52a8\u6001\u73af\u7ed5\u5947\u5f02\u70b9\u5b9e\u73b0\u624b\u6027\u4f20\u8f93\u4ee5\u53ca\u975e\u5bf9\u79f0\u6a21\u5f0f\u8f6c\u5316\u5e94\u7528\u3002<\/p>\n<p>\u5728\u8be5\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u63d0\u51fa\u5229\u7528\u53cdPT\u5bf9\u79f0\u7cfb\u7edf\uff08Anti-parity-time symmetric 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encircling an exceptional point in anti-parity-time symmetric systems: asymmetric mode switching for symmetry-broken modes, <strong><b>Light: Science &amp; Applications<\/b><\/strong>\u00a0volume 8, Article number: 88 (2019).<\/p>\n<p>\u8bba\u6587\u7f51\u5740\uff1ahttps:\/\/www.nature.com\/articles\/s41377-019-0200-8<\/p>\n<p><strong><b>\u4f5c\u8005\u7b80\u4ecb<\/b><\/strong><\/p>\n<p><strong><b>\u5f20\u65ed\u9716<\/b><\/strong>\uff0c\u5409\u6797\u5927\u5b66\u526f\u6559\u6388\u3002\u535a\u58eb\u9636\u6bb5\u5e08\u4ece\u5409\u6797\u5927\u5b66\u5b59\u6d2a\u6ce2\u6559\u6388\u4e0e\u9999\u6e2f\u79d1\u6280\u5927\u5b66\u9648\u5b50\u4ead\u6559\u6388\u3002\u7814\u7a76\u9886\u57df\u4e3a\u9762\u5411\u5149\u4fe1\u606f\u5668\u4ef6\u5e94\u7528\u7684\u975e\u5384\u7c73\u5149\u5b50\u5b66\u548c\u7eb3\u7c73\u5149\u5b50\u5b66\uff1a\u975e\u5384\u7c73\u5149\u5b50\u5b66\u7814\u7a76\u91cd\u70b9\u5173\u6ce8\u5947\u5f02\u70b9\u7684\u62d3\u6251\u7ed3\u6784\u53ca\u5176\u5728\u5149\u5b50\u8c03\u63a7\u4e2d\u7684\u5e94\u7528\uff1b\u7eb3\u7c73\u5149\u5b50\u5b66\u7814\u7a76\u4e3b\u8981\u5229\u7528\u7eb3\u7c73\u5c3a\u5ea6\u5149\u5b66\u8bbe\u8ba1\u63d0\u9ad8\u7eb3\u7c73\u5149\u7535\u5668\u4ef6\u7684\u6027\u80fd\u4e0e\u6548\u7387\u3002\u5728\u4e0a\u8ff0\u7814\u7a76\u9886\u57df\uff0c\u5f20\u535a\u58eb\u4f5c\u4e3a\u7b2c\u4e00\u4f5c\u8005\u5728<strong><b>Physical Review X<\/b><\/strong>\u3001<strong><b>Light: Science &amp; Applications<\/b><\/strong>\u3001<strong><b>Optica<\/b><\/strong>\u3001<strong><b>Physical Review Applied<\/b><\/strong>\u3001<strong><b>Physical Review A<\/b><\/strong>\u7b49\u5149\u5b66\u9886\u57df\u8457\u540d\u671f\u520a\u4e0a\u53d1\u8868\u8bba\u658718\u7bc7\uff1b\u5408\u4f5c\u53d1\u8868SCI\u8bba\u658750\u4f59\u7bc7\uff0c\u8bba\u6587SCI\u4ed6\u5f151300\u4f59\u6b21\uff0ch\u56e0\u5b50\u4e3a23\u3002\u4f5c\u4e3a\u9879\u76ee\u8d1f\u8d23\u4eba\u4e3b\u6301\u56fd\u5bb6\u81ea\u7136\u79d1\u5b66\u57fa\u91d1\u9762\u4e0a\u9879\u76ee\u3001\u9752\u5e74\u9879\u76ee\u3001\u4e2d\u56fd\u535a\u58eb\u540e\u7279\u522b\u8d44\u52a9\u9879\u76ee\u7b494\u9879\u30022018\u5e74\u83b7\u5168\u56fd\u5149\u5b66\u5de5\u7a0b\u5b66\u4f1a\u4f18\u79c0\u535a\u58eb\u8bba\u6587\u63d0\u540d\u5956\u3002<\/p>\n<p><strong>\u56fe\u6587\u5bfc\u8bfb<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-187687\" 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