The dark side of the torsion: dark energy from propagating torsion

被引：15

作者：

Benisty, D. ^{[1
,2
,3
]}

Guendelman, E., I ^{[1
,4
,5
]}

van de Venn, A. ^{[1
]}

Vasak, D. ^{[1
]}

Struckmeier, J. ^{[1
,6
,7
]}

Stoecker, H. ^{[1
,6
,7
]}

机构：

[1] Frankfurt Inst Adv Studies FIAS, Ruth Moufang Str 1, D-60438 Frankfurt, Germany

[2] Univ Cambridge, Ctr Math Sci, DAMTP, Wilberforce Rd, Cambridge CB3 0WA, England

[3] Univ Cambridge, Kavli Inst Cosmol KICC, Madingley Rd, Cambridge CB3 0HA, England

[4] Ben Gurion Univ Negev, Phys Dept, IL-84105 Beer Sheva, Israel

[5] Bahamas Adv Study Inst & Conf, 4A Ocean Hts,Hill View Circle, Stella Maris, Long Island, Bahamas

[6] Goethe Univ, Fachbereich Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany

[7] GSI Helmholtzzentrum Schwerionenforsch GmbH, Planckstr 1, D-64291 Darmstadt, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 03期

关键词：

GAUGE-THEORY; SPIN; FIELD; CONSEQUENCES; CONSTRAINTS; IDENTITIES; TENSOR;

D O I：

10.1140/epjc/s10052-022-10187-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

An extension to the Einstein-Cartan (EC) action is discussed in terms of cosmological solutions. The torsion incorporated in the EC Lagrangian is assumed to be totally anti-symmetric, represented by a time-like axial vector S-mu. The dynamics of torsion is invoked by a novel kinetic term. Here we show that this kinetic term gives rise to dark energy, while the quadratic torsion term, emanating from the EC part, represents a stiff fluid that leads to a bouncing cosmology solution. A constraint on the bouncing solution is calculated using cosmological data from different epochs.

引用

页数：8

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