论文标题

从修改的泊松代数中的标量场宇宙学

Scalar Field cosmology from a Modified Poisson Algebra

论文作者

Leon, Genly, Millano, Alfredo D., Paliathanasis, Andronikos

论文摘要

我们研究了MinisuperSpace变形获得的标量场理论的相空间。我们考虑在爱因斯坦 - 希尔伯特动作上的小苏普斯空间变形引起的动作中,考虑到典型或幻影标量场。我们使用修改后的泊松代数,其中泊松支架是$α$呈现的,并且与Moyal-Weyl Star产品有关。我们讨论早期和晚期吸引子,然后重建宇宙学的演变。我们表明,如果我们最初考虑没有宇宙恒定术语的无质量标量场,则该模型可以将其作为未来吸引子作为未来的吸引子。

We investigate the phase space of a scalar field theory obtained by minisuperspace deformation. We consider quintessence or phantom scalar fields in the action which arise from minisuperspace deformation on the Einstein-Hilbert action. We use a modified Poisson Algebra where Poisson brackets are the $α$-deformed ones and are related to the Moyal-Weyl star product. We discuss early and late-time attractors, and we reconstruct the cosmological evolution. We show that the model can have $Λ$CDM model as a future attractor if we initially consider a massless scalar field without a cosmological constant term.

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