A model-independent method with phantom divide line crossing in Weyl-type f(Q,T) gravity

被引：15

作者：

Koussour, M. ^{[1
]}

机构：

[1] Casablanca Hassan II Univ, Fac Sci Ben Msik, Quantum Phys & Magnetism Team, LPMC, Casablanca, Morocco

来源：

CHINESE JOURNAL OF PHYSICS | 2023年 / 83卷

关键词：

Weyl-type f(QT) gravity; Time-dependent deceleration parameter; Phantom dark energy; COSMOLOGICAL CONSEQUENCES; ENERGY COMPONENT; DECELERATION; CONSTRAINTS; EQUATION;

D O I：

10.1016/j.cjph.2023.04.003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the history of the cosmos using an extension of symmetric teleparallel gravity, namely Weyl-type f(Q,T) gravity, where.. represents the non-metricity scalar of space-time in the standard Weyl form, completely specified by the Weyl vector w(mu), and T represents the trace of the matter energy-momentum tensor. We derive the Hubble parameter from the proposed form of the time-dependent deceleration parameter q = A-B/Pi(2), where.. and.. are free constants and then use a model-independent method to apply it to the Friedmann equations of Weyl-type f (Q,T) gravity. Further, we determine the best fit values of the model parameters using new Hubble sets of data of 31 points and Type Ia Supernovae (SNe Ia) sets of data of 1048 points. Finally, we examine the behavior of the effective equation of state (EoS) parameter and we observe that the best fit values of the model parameters supports a crossing of the phantom divide line i.e omega(eff) = -1 from omega(eff) > -1 (quintessence phase) to omega(eff) < -1 (phantom phase). According to the current study, Weyl-type f(Q,T) gravity can give an alternative to dark energy (DE) in solving the existing cosmic acceleration.

引用

页码：454 / 466

页数：13

共 67 条

[1] Planck 2013 results. XVI. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

Bonaldi, A. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cappellini, B. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chen, X. ;

Chiang, H. C. ;

Chiang, L. -Y ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[2] Observational constraints on the jerk parameter with the data of the Hubble parameter [J].

Al Mamon, Abdulla ;

Bamba, Kazuharu .

EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (10)

[3] A parametric reconstruction of the deceleration parameter [J].

Al Mamon, Abdulla ;

Das, Sudipta .

EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (07)

[4] Crossing Phantom Divide in f(Q)$f(Q)$ Gravity [J].

Arora, Simran ;

Sahoo, Pradyumn Kumar .

ANNALEN DER PHYSIK, 2022, 534 (08)

[5] f(Q, T) gravity models with observational constraints [J].

Arora, Simran ;

Pacif, S. K. J. ;

Bhattacharjee, Snehasish ;

Sahoo, P. K. .

PHYSICS OF THE DARK UNIVERSE, 2020, 30

[6] Cosmology in f (Q) geometry [J].

Beltran Jimenez, Jose ;

Heisenberg, Lavinia ;

Koivisto, Tomi ;

Pekar, Simon .

PHYSICAL REVIEW D, 2020, 101 (10)

[7] Coincident general relativity [J].

Beltran Jimenez, Jose ;

Heisenberg, Lavinia ;

Koivisto, Tomi .

PHYSICAL REVIEW D, 2018, 98 (04)

[8]

Bhattacharjee S, 2020, EUR PHYS J C, V80, DOI 10.1140/epjc/s10052-020-7844-7

[9]

BUCHDAHL HA, 1970, MON NOT R ASTRON SOC, V150, P1

[10] Tachyon dark energy models: Dynamics and constraints [J].

Calcagni, Gianluca ;

Liddle, Andrew R. .

PHYSICAL REVIEW D, 2006, 74 (04)

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