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arXiv 1610.09243hep-thastro-ph.COgr-qchep-ph
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外尔流、标度不变暴胀和普朗克标度产生

Weyl Current, Scale-Invariant Inflation and Planck Scale Generation

Pedro G. Ferreira, Christopher T. Hill, Graham G. Ross

摘要:

标量场,$ϕ_i$可以非极小地耦合到曲率,并满足一般准则:(i)理论没有质量输入参数,包括普朗克质量;(ii)$ϕ_i$具有任意值和梯度,但经历一般的膨胀和松弛到满足非平凡约束的常值,$K(ϕ_i) =$常数;(iii)这种约束自发地破坏了标度对称性,普朗克质量是动态产生的;(iv)在受约束的标度不变势中,可以存在与慢滚相关的充分暴胀;(v)最终真空可以有一个小到为零的宇宙学常数(vi)真空期望值的大层次可以自然形成;(vii)有一个无害的标量,它自然地避开了无质量标量的通常约束。这些模型是由一个全球外尔尺度对称性和它的保守电流,$K_μ$。在量子水平上,外尔尺度对称性可以通过重整化量的不变规范来维持。

英文摘要:

Scalar fields, $ϕ_i$ can be coupled non-minimally to curvature and satisfy the general criteria: (i) the theory has no mass input parameters, including the Planck mass; (ii) the $ϕ_i$ have arbitrary values and gradients, but undergo a general expansion and relaxation to constant values that satisfy a nontrivial constraint, $K(ϕ_i) =$ constant; (iii) this constraint breaks scale symmetry spontaneously, and the Planck mass is dynamically generated; (iv) there can be adequate inflation associated with slow roll in a scale invariant potential subject to the constraint; (v) the final vacuum can have a small to vanishing cosmological constant (vi) large hierarchies in vacuum expectation values can naturally form; (vii) there is a harmless dilaton which naturally eludes the usual constraints on massless scalars. These models are governed by a global Weyl scale symmetry and its conserved current, $K_μ$ . At the quantum level the Weyl scale symmetry can be maintained by an invariant specification of renormalized quantities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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