Generalized ghost dark energy in f(Q) gravity

被引:29
作者
Sharif, M. [1 ]
Ajmal, Madiha [1 ]
机构
[1] Univ Lahore, Dept Math & Stat, 1-KM Def Rd, Lahore 54000, Pakistan
关键词
f(Q) gravity; Generalized ghost dark energy; Cosmological evolution; COSMOLOGICAL CONSTANT; RECONSTRUCTION; RELATIVITY; UNIVERSE;
D O I
10.1016/j.cjph.2024.02.031
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this manuscript, we use the correspondence principle to construct the generalized ghost dark energy f(Q) model, where Q is the non-metricity. For this purpose, we use the Friedman-Robertson-Walker universe model with power-law scale factor. The energy density in this model linearly depends on the Hubble parameter, with a sub-leading term of H-2, resulting in an energy density rho(D) = xi H + zeta H-2, where xi and zeta are arbitrary constants. We reconstruct interacting fluid scenario of this dark energy with dark matter. The reformulated f(Q) gravity model shows how different epochs of the cosmic history can be reproduced by this modified gravity model. The physical characteristics of the model are discussed through the equation of state parameter with the planes of omega(D) - omega'(D) and r - s We also explore the stability criteria for the interacting model using the squared speed of sound. The equation of state parameter indicates phantom phase of the universe and the squared speed of sound represents stability of the interacting model. The (omega(D) - omega'(D))-plane indicates freezing region, while the (r - s)-plane corresponds to the Chaplygin gas. We conclude that our findings coincide with the latest observational data.
引用
收藏
页码:706 / 721
页数:16
相关论文
共 71 条
[1]   Planck 2015 results XVII. Constraints on primordial non-Gaussianity [J].
Ade, P. A. R. ;
Aghanim, N. ;
Arnaud, M. ;
Arrojam, F. ;
Ashdown, M. ;
Aumont, J. ;
Baccigalupi, C. ;
Ballardini, M. ;
Banday, A. J. ;
Barreiro, R. B. ;
Bartolo, N. ;
Basak, S. ;
Battaner, E. ;
Benabed, K. ;
Benoit, A. ;
Benoit-Levy, A. ;
Bernard, J. -P. ;
Bersanelli, M. ;
Bielewicz, P. ;
Bock, J. J. ;
Bonaldi, A. ;
Bonavera, L. ;
Bond, J. R. ;
Borrill, J. ;
Bouchet, F. R. ;
Boulanger, F. ;
Bucher, M. ;
Burigana, C. ;
Butler, R. C. ;
Calabrese, E. ;
Cardoso, J. -F. ;
Catalano, A. ;
Challinor, A. ;
Chamballu, A. ;
Chiang, H. C. ;
Christensen, P. R. ;
Church, S. ;
Clements, D. L. ;
Colombi, S. ;
Colombo, L. P. L. ;
Combet, C. ;
Couchot, F. ;
Coulais, A. ;
Crill, B. P. ;
Curto, A. ;
Cuttaia, F. ;
Danese, L. ;
Davies, R. D. ;
Davis, R. J. ;
de Bernardis, P. .
ASTRONOMY & ASTROPHYSICS, 2016, 594
[2]  
Aldrovandi R., 2013, Teleparallel Gravity: An Introduction
[3]   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
[4]  
[Anonymous], 1922, C. R. Acad. Sci.
[5]   Observational constraints on cosmological solutions of f(Q) theories [J].
Ayuso, Ismael ;
Lazkoz, Ruth ;
Salzano, Vincenzo .
PHYSICAL REVIEW D, 2021, 103 (06)
[6]   THE STABILITY OF GENERAL RELATIVISTIC COSMOLOGICAL THEORY [J].
BARROW, JD ;
OTTEWILL, AC .
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1983, 16 (12) :2757-2776
[7]   Cosmology in f (Q) geometry [J].
Beltran Jimenez, Jose ;
Heisenberg, Lavinia ;
Koivisto, Tomi ;
Pekar, Simon .
PHYSICAL REVIEW D, 2020, 101 (10)
[8]   Coincident general relativity [J].
Beltran Jimenez, Jose ;
Heisenberg, Lavinia ;
Koivisto, Tomi .
PHYSICAL REVIEW D, 2018, 98 (04)
[9]   Extra force in f(R) modified theories of gravity [J].
Bertolami, Orfeu ;
Bohmer, Christian G. ;
Harko, Tiberiu ;
Lobo, Francisco S. N. .
PHYSICAL REVIEW D, 2007, 75 (10)
[10]   A test of general relativity using radio links with the Cassini spacecraft [J].
Bertotti, B ;
Iess, L ;
Tortora, P .
NATURE, 2003, 425 (6956) :374-376