Solidot: 希格斯玻色子或能破解波尔兹曼大脑之谜

Solidot

奇客的资讯，重要的东西

希格斯玻色子或能破解波尔兹曼大脑之谜
http://solidot.org.feedsportal.com/c/33236/f/556826/s/30d6a808/sc/38/l/0L0Ssolidot0Borg0Cstory0Dsid0F36335/story01.htm
Sep 5th 2013, 13:13

在希格斯玻色子发现之前，粒子物理学家非常担心，如果粒子的属性恰如标准模型预测的那样，那么他们就没有线索知道接下来该干什么了。这个噩梦最后真的变成了现实。然而，"无聊的"希格斯玻色子还是能给出非常有趣的结果。理论物理学家认为它能揭示暗能量的属性，其他人则认为它能破解神秘的宇宙学问题"波尔兹曼大脑"。我们所在的宇宙处于高度有序的低熵态，热力学第二定律声明封闭宇宙的熵永远不会减少，那么最可能的情况是宇宙是一个高熵态物质分布均匀的宇宙。但为何可观测宇宙的熵如此之低？玻尔兹曼提出，我们观测到的低熵世界来源于高熵宇宙的随机涨落，这种涨落有可能产生一个自我意识实体——也就是波尔兹曼大脑，其产生概率比我们所处的低熵世界要大得多。按此推断，宇宙中应该有很多玻尔兹曼大脑漂浮在无序中。科学家的最新研究认为，亚稳态希格斯场引发的真空不稳定性（预印本）会在玻尔兹曼大脑占领宇宙前提前毁灭宇宙。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: Massacres That Matter - Part 1 - 'Responsibility To Protect' In Egypt, Libya And SyriaMassacres That Matter - Part 2 - The Media Response On Egypt, Libya And SyriaNational demonstration: No attack on Syria - Saturday 31 August, 12 noon, Temple Place, London, UK



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