2023
DOI: 10.1016/j.physletb.2023.137721
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From the emergence of cosmic space to horizon thermodynamics in Barrow entropy-based Cosmology

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Cited by 13 publications
(4 citation statements)
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“…The above ingredients provide the basics to derive the modified Friedmann equations in Barrow entropy-based Cosmology. Following [ 55 ], here we extract such equations from the first law of thermodynamics applied to the apparent horizon of the FRW Universe in -dimensions, where is the work density associated to the Universe expansion and is the generalized Barrow entropy. We have denoted the n -dimensional horizon surface by , where is the angular part of the n -dimensional sphere and the Euler’s function.…”
Section: Modified Friedmann Equations In Barrow Cosmologymentioning
confidence: 99%
“…The above ingredients provide the basics to derive the modified Friedmann equations in Barrow entropy-based Cosmology. Following [ 55 ], here we extract such equations from the first law of thermodynamics applied to the apparent horizon of the FRW Universe in -dimensions, where is the work density associated to the Universe expansion and is the generalized Barrow entropy. We have denoted the n -dimensional horizon surface by , where is the angular part of the n -dimensional sphere and the Euler’s function.…”
Section: Modified Friedmann Equations In Barrow Cosmologymentioning
confidence: 99%
“…To simplify the resolution of Equation ( 58), we introduce the e-folds variable N = log(a/a i ), where a i is the initial value of the scale factor a. By observing that dN = Hdt and Ḣ = 1 2 dH 2 dN , integration of Equation (58) gives…”
Section: Inflation In Barrow Holographic Dark Energymentioning
confidence: 99%
“…Despite the intensive study, the shortcomings of the HDE in describing the history of a flat Friedmann-Robertson-Walker (FRW) universe have prompted tentative changes to this approach. For instance, HDE has been used to address the DE problem in Brans-Dicke Cosmology [36][37][38][39][40][41][42] by considering different IR cutoffs [28,29,41] or and/or generalized entropies [43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. In particular, the latter path has led to promising models, such as Tsallis [43][44][45][46]59], Barrow [47,51,53], and Kaniadakis [49,50,52] holographic dark energy, the latter two being motivated by quantum gravitational and relativistic considerations, respectively.…”
Section: Introductionmentioning
confidence: 99%
“…[5] and other applications are made in cosmology Refs. [6,7,8,9]. Particularly, this entropy is applied with the generalized logarithmic modification and its relationship with Tsallis entropy Ref.…”
Section: Introductionmentioning
confidence: 99%