Research in Quantum, Classical Gravity and Cosmology

量子、经典引力和宇宙学研究

基本信息

  • 批准号:
    1266107
  • 负责人:
  • 金额:
    $ 2万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2013
  • 资助国家:
    美国
  • 起止时间:
    2013-06-15 至 2018-05-31
  • 项目状态:
    已结题

项目摘要

Physical progress always proceeds on three fronts: observational/experimental, phenomenological--a coherent codifying of the data-- and finally, theoretical--finding a deeper understanding, through general laws, of those descriptions. The present rapid progress of both micro-, as witness the headline "LHC" results, and cosmo-scales, such as the newest "Planck" maps, puts welcome pressure on theory. Our work is on the "deep" theory side, attempting to find hints of possible generalizations of the "standard model", Einstein Gravity, that account for the deviations from its otherwise spectacular successes. Here we especially mean the apparent need for dark matter, which we hope to reduce to geometrical effects rather than by adding on Ptolemaic particles, without giving up the beauty of geometry. Thus, part of our efforts will be to continue our very recent results that exclude the currently popular "massive Gravity", because the latter loses all the beauty of geometry, instead unleashing too many variants and losing the tightness of geometrical description. Indeed, just as the Yang-Mills field theory counterparts of General Relativity were shown to exclude massive extensions, but relied instead on the now LHC-observed Higgs field, it looks as if the beautiful "isolated" nature of our basic interacting "glue" theories, Yang -Mills and Maxwell, will extend to gravity as well. On the constructive side, we intend to look for--less fundamental "effective", non-local but still geometrical, laws that replace the fuzziness of dark matter by additional terms that exploit the freedom remaining in the "Einstein" picture. In more accessible terms, let us place our efforts within the present framework of front-line Physics, one that has received much recent media attention both in the Laboratory--especially the discovery of the "Higgs" field at the LHC accelerator, and at the opposite end of our universe-- by for example the newest spectacular pictures presented by the Planck, and other Cosmic observatories, of our entire Universe as it looked a mere third of a million years into its expansion the its present 13 billion. Our aim is to understand such general features of our world by--as conservative as possible--extensions of Einstein's General Relativity to account for Dark Matter and other unexpected new large-scale features. The conservative part of our program is to exclude candidates that go too far, by violating the (by now familiar) picture of curved space that General Relativity presents. So our twofold approach keeps a tight rein on that good, "geometrical", part of our hard-won picture of the Universe, while extending its reach within this realm, in particular by exploring different ways in which matter and geometry can interact there. We may be sure that the observational surprises will stay ahead of our inventive abilities, but that's the bootstrap that always works, and illuminates our world!
物理进展总是在三个方面进行:观测/实验、现象学--对数据进行连贯的编码--最后是理论--通过一般规律找到对这些描述的更深层次的理解。目前微观尺度和宇宙尺度的快速发展都给理论带来了可喜的压力,“大型强子对撞机”的标题“大型强子对撞机”的结果就是明证,宇宙尺度如最新的“普朗克”图。我们的工作是在“深层”理论方面,试图找到“标准模型”--爱因斯坦引力--可能推广的线索,它解释了爱因斯坦引力与其他惊人成功的偏差。这里我们特别指的是对暗物质的明显需求,我们希望在不放弃几何之美的情况下,将其减少为几何效应,而不是通过添加托勒密粒子。因此,我们的部分努力将是继续我们最新的结果,这些结果排除了目前流行的“质量引力”,因为后者失去了几何的所有美,相反,释放了太多的变种,失去了几何描述的紧密性。事实上,就像广义相对论的杨-米尔斯场论的对应者被证明排除了大规模扩展一样,相反,它依赖于现在大型强子对撞机观测到的希格斯场,看起来我们的基本相互作用的“胶”理论--杨-米尔斯和麦克斯韦--美丽的“孤立”性质也将延伸到引力。在建设性的方面,我们打算寻找--不那么根本的“有效”的、非局域的、但仍然是几何的、用附加项取代暗物质的模糊性的定律,这些附加项利用了“爱因斯坦”图景中剩余的自由。用更容易理解的术语,让我们把我们的努力放在目前一线物理学的框架内,这个框架最近在实验室受到了很多媒体的关注--特别是在大型强子对撞机加速器上发现了“希格斯场”,在我们宇宙的另一端--例如,普朗克天文台和其他宇宙天文台展示了我们整个宇宙的最新壮观图片,当时它看起来只扩展了三分之一百万年,目前的130亿年。我们的目标是通过尽可能保守地扩展爱因斯坦的广义相对论来解释暗物质和其他意想不到的新的大规模特征,从而理解我们世界的这些一般特征。我们计划的保守部分是排除那些走得太远的候选人,因为他们违反了广义相对论提出的弯曲空间的图景(现在已经很熟悉了)。因此,我们的双重方法严格控制着我们来之不易的宇宙图景中那个好的、“几何的”部分,同时扩展它在这个领域的触角,特别是通过探索物质和几何可以在那里相互作用的不同方式。我们也许可以肯定,观测的惊喜将超越我们的发明能力,但这是始终有效的引导,并照亮了我们的世界!

项目成果

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Stanley Deser其他文献

Conformal invariance of partially massless higher spins
部分无质量高自旋的共形不变性
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Stanley Deser;Andrew Waldron
  • 通讯作者:
    Andrew Waldron
On topological questions in the canonical formulation of gravitation
Ghost-free, finite, fourth-order D = 3 gravity.
  • DOI:
    10.1103/physrevlett.103.101302
  • 发表时间:
    2009-04
  • 期刊:
  • 影响因子:
    8.6
  • 作者:
    Stanley Deser
  • 通讯作者:
    Stanley Deser
COMMENTS, REPLIES AND NOTES: A note on first-order formalism and odd-derivative actions
评论、回复和注释:关于一阶形式主义和奇导数作用的注释
The Bel–Robinson tensor for topologically massive gravity
拓扑重力的贝尔-罗宾逊张量
  • DOI:
  • 发表时间:
    2010
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Stanley Deser;James Franklin
  • 通讯作者:
    James Franklin

Stanley Deser的其他文献

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{{ truncateString('Stanley Deser', 18)}}的其他基金

Research in Theoretical Cosmology, Gravity and Supergravity
理论宇宙学、引力和超引力研究
  • 批准号:
    1064302
  • 财政年份:
    2011
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Research in Theoretical Cosmology, Quantum and Classical Gravity
理论宇宙学、量子和经典引力研究
  • 批准号:
    0757190
  • 财政年份:
    2008
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Research in Gravitation and Quantum Field Theory
引力与量子场论研究
  • 批准号:
    0401667
  • 财政年份:
    2004
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Research in Gravitation and Quantum Field Theory
引力与量子场论研究
  • 批准号:
    9973935
  • 财政年份:
    1999
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Research in Gravitation and Quantum Field Theory
引力与量子场论研究
  • 批准号:
    9315811
  • 财政年份:
    1993
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Research in Supergravity, General Relativity and Gauge Theories (Physics)
超引力、广义相对论和规范理论研究(物理学)
  • 批准号:
    8804561
  • 财政年份:
    1988
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Research in Supergravity, General Relativity, and Gauge Theories (Physics)
超引力、广义相对论和规范理论研究(物理学)
  • 批准号:
    8201094
  • 财政年份:
    1982
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
Supergravity, General Relativity and Field Theory
超引力、广义相对论和场论
  • 批准号:
    7809644
  • 财政年份:
    1978
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant
General Relativity and Field Theory
广义相对论和场论
  • 批准号:
    7607299
  • 财政年份:
    1976
  • 资助金额:
    $ 2万
  • 项目类别:
    Continuing Grant

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