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arXiv 2001.11790hep-th
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非相对论极限与三维余伴Poincare引力

Non-relativistic limits and three-dimensional coadjoint Poincare gravity

Eric Bergshoeff, Joaquim Gomis, Patricio Salgado-Rebolledo

摘要:

我们表明,最近提出的三维非相对论引力的行动,可以通过采取限制的相对论拉格朗日,涉及共伴随庞加莱代数。我们指出,我们的建设与三维伽利略引力和扩展巴格曼引力的方式,可以通过采取的相对论拉格朗日,涉及庞加莱代数的限制得到的相似之处。我们将我们的结果推广到AdS的情况下,我们将看到,有一个手征分解在相对论和非相对论水平。我们对可能的进一步概括作了评论。

英文摘要:

We show that a recently proposed action for three-dimensional non-relativistic gravity can be obtained by taking the limit of a relativistic Lagrangian that involves the co-adjoint Poincare algebra. We point out the similarity of our construction with the way that three-dimensional Galilei Gravity and Extended Bargmann Gravity can be obtained by taking the limit of a relativistic Lagrangian that involves the Poincare algebra. We extend our results to the AdS case and we will see that there is a chiral decomposition both at the relativistic and non-relativistic level. We comment on possible further generalizations.

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