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class="relatedlink">发光</a>来确定原子跃迁的特性。虽然同样的技术也可用于研究反原子，但是反物质非常难以生成和捕捉，一旦与物质接触就会湮灭，因此也难以测量它的特性。</div><div><br></div><div> 2017年年底，欧核中心的ALPHA合作组在《自然》杂志上发文，报告了对激光驱动的反氢1S—2S跃迁（从基态到激发态）的实验性观测，这是人类首次对反物质原子进行光谱测量。而今，合作组与丹麦奥胡斯大学物理学家杰弗里·汉格斯特及其同事，详细表述了该跃迁的其中一个超精细组分的特征。</div><div><br></div><div> 研究团队此次分析测量了约15000个反氢原子，这些原子被磁囚禁在一个长280毫米、直径44毫米的圆柱体内。研究人员进行了为期10周的测量，最终发现：反氢跃迁的共振频率与氢1S—2S跃迁的预期频率一致，其测量精度达万亿分之二。</div><div><br></div><div> 这是有史以来对反物质进行的最精准的一次光谱检测，标志着人类向超敏测量反物质行为并了解其“最终奥秘”迈近了重要一步。</div><div><br></div><div><p style="word-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; background-color: rgb(255, 255, 255); text-align: center;"><b style="word-wrap: normal;"><font size="5" style="word-wrap: normal;">欢迎关注OECR公众号</font></b></p><p style="word-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; background-color: rgb(255, 255, 255); text-align: center;"><a 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id="comment_16652_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16652, '6485');">引用</a> </span> <a href="http://club.oecr.com/space-uid-31670.html" class="xi2 xw1" c="1">dck</a> <span class="xg1 xw0">2018-4-12 01:30</span> </dt> <dd>光电工程师社区 不错</dd> </dl><a name="comment_anchor_16651"></a> <dl id="comment_16651_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16651, '6485');">引用</a> </span> <a href="http://club.oecr.com/space-uid-121708.html" class="xi2 xw1" c="1">ericfan626</a> <span class="xg1 xw0">2018-4-12 01:00</span> </dt> <dd>路过 帮顶 嘿嘿</dd> </dl><a name="comment_anchor_16648"></a> <dl id="comment_16648_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16648, '6485');">引用</a> </span> <a href="http://club.oecr.com/space-uid-67993.html" class="xi2 xw1" c="1">olymim</a> <span class="xg1 xw0">2018-4-12 00:00</span> </dt> <dd>oecr.com 我十多年前就知道啦。</dd> </dl><a name="comment_anchor_16644"></a> <dl id="comment_16644_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16644, '6485');">引用</a> </span> <a href="http://club.oecr.com/space-uid-24397.html" class="xi2 xw1" c="1">穿上袜子</a> <span class="xg1 xw0">2018-4-11 22:00</span> </dt> <dd>我要向同学多推荐。</dd> </dl><a name="comment_anchor_16625"></a> <dl id="comment_16625_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16625, '6485');">引用</a> </span> <a href="http://club.oecr.com/space-uid-27870.html" class="xi2 xw1" c="1">ljhouston</a> <span class="xg1 xw0">2018-4-11 12:59</span> </dt> <dd>非常好，顶一下</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" class="area"></div><!--[/diy]--> </div> <div class="sd pph"> <div 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