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arXiv 1702.06261hep-th
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引力与二次型

Gravitation and quadratic forms

Sudarshan Ananth, Lars Brink, Sucheta Majumdar, Mahendra Mali, Nabha Shah

摘要:

描述纯Yang-Mills和N=4超Yang-Mills的光锥哈密顿量可以表示为二次型。在这里,我们表明,这一特点延伸到引力理论。我们证明了在四维空间中,纯引力和N=8超引力的哈密顿量可以写成二次型。我们研究剩余的重新参数化的哈密顿量和由此产生的二次型的效果。

英文摘要:

The light-cone Hamiltonians describing both pure Yang-Mills and N=4 super Yang-Mills may be expressed as quadratic forms. Here, we show that this feature extends to theories of gravity. We demonstrate how the Hamiltonians of both pure gravity and N=8 supergravity, in four dimensions, may be written as quadratic forms. We examine the effect of residual reparametrizations on the Hamiltonian and the resulting quadratic form.

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