宇宙大爆炸理论 – 第二部分

阅读后 论文Ashtekar 量子重力和思考它, 我意识到我的麻烦与宇宙大爆炸理论是. 它更多的是对较细节的基本假设. 我以为我会在这里总结一下我的想法, 以上为我自己的利益比任何其他人的.

经典理论 (包括SR和QM) 治疗空间连续虚无; 因此,长期时空连续. 在此视图中, 存在于连续的空间物体和彼此在连续时间进行交互.

虽然时空连续统这一概念是直观的吸引力, 这是, 充其量, 残缺. 考虑, 例如, 一个旋转体的空. 它预期会遇到的离心力. 现在想象一下,身体是静止的,整个空间旋转周围. 它会不会遇到任何离心力?

这是很难理解为什么会有任何离心力,如果空间是空的虚无.

GR介绍了一个范式转变通过编码重力进入时空从而在本质上动态, 而不是空洞虚无. 因此,, 质量得到沉浸在太空 (和时间), 空间变得代名词宇宙, 和纺纱身体问题变得很容易回答. 是的, 它会经历离心力,如果它是旋转它周围的宇宙,因为它是等效于人体的纺丝. 和, 别, 它不会, 如果它是在刚刚空的空间. 但 “空” 不存在. 在没有质量, 没有时空几何.

所以, 自然, 在大爆炸之前 (如果有一个), 不可能有任何空间, 也确实可以有任何 “之前。” 注意, 然而,, 该Ashtekar文件并没有明确说明为什么必须有一个大爆炸. 它得到最接近的是,BB的必要性产生于重力的空间 - 时间中的GR的编码. 尽管引力的这种编码,从而使时空动态, GR仍然把时空的连续平稳 — 一大败笔, 根据Ashtekar, 这QG整顿.

现在, 如果我们承认,宇宙开始了一次大爆炸 (并从一个小区域), 我们必须考虑量子效应. 时空必须是量化的唯一正确的方式做这将是通过量子引力. 通过QG, 我们希望避免GR的大爆炸奇点, 以同样的方式QM解决了氢原子的无界基态能量问题.

我上面描述的就是我所理解的背后现代宇宙学的物理参数. 剩下的就是数学的大厦建立在这个物质之上 (或甚哲学) 基金会. 如果你对哲学基础没有强烈的意见 (或者如果你的意见与它保持一致), 你能接受BB没有困难. 不幸, 我有不同的看法.

我的看法围绕以下问题旋转.

这些职位可能听起来像无用的哲学沉思, 但我确实有一些具体的 (在我看来,, 重要) 结果, 下面列出.

还有更多的工作需要在这方面做的. 但对于未来几年, 从我的职业生涯定量我的新书合同和压力, 我没有足够的时间来研究遗传资源和宇宙学与应有的严肃性. 我希望要回他们一次传播自己太薄通行证的当前阶段.

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2 thoughts on “The Big Bang Theory – 第二部分”

  1. It’s quite rewarding when someone with a solid grounding in science introduces the same problem as a laymen like myself has always had with the Big Bang theory.
    i.e. that space is not really part of the equation in the pre-BB ‘universe.

    The other issue I’ve had is also connected to the points you have raised.
    i.e. if time didn’t exist pre-BB, yet time is required for any chemical reaction then how did the BB actually take place given that there can’t be any preparatory events leading to the reaction that caused the BB. In fact if time didn’t exist then the BB can’t be said to have even taken place (as there was no time)

    I know it’s probably amusing to hear a laymen pondering these two elements, having no solid grounding in science, but I’d love to hear your thoughts on this further

    1. 感谢您的评论, Trent.

      Although I have some background in physics, I am pretty much a beginner when it comes to BB cosmology.

      I think where people like you and me have trouble is when physicists treat their theories as “实,” or when we think they do. I guess the smarter ones do not think of their theories as anything more than mathematical models. I remember reading Feynman once describe an electron as possibly a mathematical conceptafter having developed QED! 同样, BB is perhaps only a framework that seems to hold a few observed properties together in neat equations.

      I still have problems with the assumptions at its foundation though. Space and time, 在我看来, are a cognitive representation of our senses. Saying that they started from a singularity (or small region) is as silly as saying that sound and smell started from a small region! IMHO

      – cheers,
      – 手

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