Cosmological constraints on dark energy in f(Q) gravity: A parametrized perspective

被引：30

作者：

Mussatayeva, A. ^{[1
]}

Myrzakulov, N. ^{[2
,3
]}

Koussour, M. ^{[4
]}

机构：

[1] S Seifullin Kazakh Agrotech Univ, Dept Phys & Chem, Astana 010011, Kazakhstan

[2] LN Gumilyov Eurasian Natl Univ, Astana 010008, Kazakhstan

[3] Ratbay Myrzakulov Eurasian Int Ctr Theoret Phys, Astana 010009, Kazakhstan

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

来源：

PHYSICS OF THE DARK UNIVERSE | 2023年 / 42卷

关键词：

f(Q)gravity; Dark energy; EoS parameter; Cosmological constraints; HUBBLE PARAMETER; REDSHIFT; IA; SUPERNOVAE; EQUATION; UNIVERSE; STATE; PROBE; MODEL;

D O I：

10.1016/j.dark.2023.101276

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we focus on the parametrization of the effective equation of state (EoS) parameter within the framework of f(Q) symmetric teleparallel gravity. Here, the gravitational action is represented by an arbitrary function of the non-metricity scalar Q. By utilizing a specific parametrization of the effective EoS parameter and a power-law model of f(Q) theory, namely f(Q) = /3Q(m+1) (where /3 and m are arbitrary constants), we derive the cosmological solution of the Hubble parameter H(z). To constrain model parameters, we employ recent observational data, including the Observational Hubble parameter Data (OHD), Baryon Acoustic Oscillations data (BAO), and Type Ia supernovae data (SNe Ia). The current constrained value of the deceleration parameter is found to be q0 = -0.50+0.01 -0.01, indicating that the current Universe is accelerating. Furthermore, we examine the evolution of the density, EoS, and Om(z) diagnostic parameters to deduce the accelerating nature of the Universe. Finally, we perform a stability analysis with linear perturbations to confirm the model's stability. & COPY; 2023 Elsevier B.V. All rights reserved.

引用

页数：9

共 70 条

[1] Planck 2018 results: V. CMB power spectra and likelihoods [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Casaponsa, B. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Rosa, A. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[2] Reconstruction of interaction rate in holographic dark energy model with Hubble horizon as the infrared cut-off [J].

Al Mamon, Abdulla .

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2017, 26 (11)

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

Al Mamon, Abdulla ;

Das, Sudipta .

EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (07)

[4]

Ambrosio F.D., 2022, Phys. Rev. D, V105, P24042

[5] First evidence that non-metricity f (Q) gravity could challenge ΛCDM [J].

Anagnostopoulos, Fotios K. ;

Basilakos, Spyros ;

Saridakis, Emmanuel N. .

PHYSICS LETTERS B, 2021, 822

[6] Can luminosity distance measurements probe the equation of state of dark energy? [J].

Astier, P .

PHYSICS LETTERS B, 2001, 500 (1-2) :8-15

[7] Observational constraints on cosmological solutions of f(Q) theories [J].

Ayuso, Ismael ;

Lazkoz, Ruth ;

Salzano, Vincenzo .

PHYSICAL REVIEW D, 2021, 103 (06)

[8] A parametric model for dark energy [J].

Barboza, E. M., Jr. ;

Alcaniz, J. S. .

PHYSICS LETTERS B, 2008, 666 (05) :415-419

[9] Testing F (Q) gravity with redshift space distortions [J].

Barros, Bruno J. ;

Barreiro, Tiago ;

Koivisto, Tomi ;

Nunes, Nelson J. .

PHYSICS OF THE DARK UNIVERSE, 2020, 30

[10] Confronting the relaxation mechanism for a large cosmological constant with observations [J].

Basilakos, Spyros ;

Bauer, Florian ;

Sola, Joan .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2012, (01)

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