Recognition: 2 theorem links
· Lean TheoremEmergent ΛCDM cosmology from a measure-induced deformation of the Newtonian action
Pith reviewed 2026-05-15 16:45 UTC · model grok-4.3
The pith
A minimal time-dependent deformation of the Newtonian action produces the full matter, radiation, and accelerated phases of LambdaCDM cosmology from one potential.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
Replacing the standard time integration measure in the Newtonian action by a time-dependent fractional kernel with parameter alpha yields a conserved quantity that includes a memory-like kinetic term. Generalizing the Newtonian potential to an alpha-dependent effective potential then produces cosmological equations whose background dynamics are identical to those of the relativistic FLRW metric. With a single unified potential the model self-consistently reproduces the matter-dominated, radiation-dominated, and present accelerated epochs, while an effective cosmological constant emerges whose magnitude is set by the small departure of alpha from 1. When alpha equals 1 the construction re-rec
What carries the argument
The alpha-dependent effective potential induced by the fractional time kernel, which replaces the Newtonian potential and supplies the effective cosmological constant when alpha differs slightly from 1.
Load-bearing premise
The alpha-dependent effective potential obtained from the measure deformation produces Friedmann-like background equations that correctly describe the full expansion history.
What would settle it
A direct integration of the derived equations showing that no value of alpha near 1 can simultaneously fit supernova distances, CMB peak positions, and the matter-radiation equality redshift would falsify the claimed correspondence.
read the original abstract
We propose a minimal extension of the Newtonian action by introducing a time-dependent fractional kernel characterized by a single deformation parameter $\alpha$. This kernel admits a natural interpretation as a nontrivial temporal integration measure defined by a time-dependent kernel, placing the formulation within measure-based approaches to anomalous or fractal dynamics. Despite the appearance of a friction-like term in the equations of motion, a conserved quantity is still obtained, containing a memory-like fractional kinetic energy contribution. Moreover, by generalizing the standard Newtonian potential to an $\alpha$-dependent effective potential induced by the underlying measure, the resulting cosmological equations exhibit an effective correspondence with relativistic FLRW cosmology at the level of background dynamics. In the limit $\alpha=1$, the framework reduces to standard Newtonian cosmology. We show that, with a single unified potential, the matter-dominated, radiation-dominated, and present accelerated phases are obtained self-consistently, while the latter two epochs cannot be described within standard Newtonian cosmology. The structural presence of $\alpha$ in all physical observables allows theoretical and observational constraints to be imposed, indicating that compatibility with observational data requires $|\alpha - 1|\ll1$. Within this framework, an effective cosmological constant emerges, controlled by the small deviation of $\alpha$ from the Newtonian limit. These results demonstrate that $\Lambda$CDM cosmological dynamics emerge from a simple measure-induced deformation of the Newtonian action.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper proposes a minimal extension of the Newtonian action by introducing a time-dependent fractional kernel with a single deformation parameter α, interpreted as a nontrivial temporal integration measure. Generalizing the standard Newtonian potential to an α-dependent effective potential induced by this measure yields cosmological equations that correspond to FLRW background dynamics, including an emergent cosmological constant proportional to (1-α). With a single unified potential, the framework self-consistently reproduces matter-dominated, radiation-dominated, and accelerated phases, reducing to standard Newtonian cosmology at α=1, with observational compatibility requiring |α-1|≪1.
Significance. If the mapping from the fractional kernel to the effective potential is shown to be rigorously derived rather than imposed, the result would be significant for demonstrating how ΛCDM dynamics, including the accelerated phase inaccessible in standard Newtonian cosmology, can emerge from a measure-based deformation of Newtonian mechanics. The single-parameter unification of epochs and the structural role of α in observables provide a falsifiable framework with clear observational constraints.
major comments (2)
- [Generalization of the Newtonian potential and background equations] The central claim of FLRW correspondence rests on generalizing the Newtonian potential to an α-dependent effective potential 'induced by the underlying measure.' The explicit term-by-term derivation from the time-dependent fractional kernel to this potential form is not provided in sufficient detail; without it, the potential appears selected to enforce the target Friedmann and acceleration equations (including Λ ∝ (1-α)), rendering the emergence circular rather than independently derived. This is load-bearing for the self-consistent reproduction of all epochs with one potential.
- [Derivation of conserved quantity and cosmological equations] The equations of motion include a friction-like term yet yield a conserved quantity with memory-like fractional kinetic energy. The manuscript must demonstrate explicitly how this conserved quantity, combined with the deformed potential, produces the exact FLRW set without additional ansätze, particularly for the radiation and accelerated phases. The reduction at α=1 is automatic, but the necessity of the (1-α) deviation for Λ must be shown from the kernel rather than by construction.
minor comments (1)
- Clarify the notation for the fractional kernel and its time dependence early in the text to aid readability for readers unfamiliar with measure-based anomalous dynamics.
Simulated Author's Rebuttal
We thank the referee for the careful reading and constructive comments. We agree that the derivations require more explicit detail to avoid any appearance of circularity and will revise the manuscript accordingly. We address each major comment below.
read point-by-point responses
-
Referee: [Generalization of the Newtonian potential and background equations] The central claim of FLRW correspondence rests on generalizing the Newtonian potential to an α-dependent effective potential 'induced by the underlying measure.' The explicit term-by-term derivation from the time-dependent fractional kernel to this potential form is not provided in sufficient detail; without it, the potential appears selected to enforce the target Friedmann and acceleration equations (including Λ ∝ (1-α)), rendering the emergence circular rather than independently derived. This is load-bearing for the self-consistent reproduction of all epochs with one potential.
Authors: We acknowledge that the term-by-term mapping from the fractional kernel to the α-dependent effective potential was not presented with sufficient intermediate steps. In the revised manuscript we will insert a new subsection deriving the effective potential explicitly from the time-dependent kernel, showing each contribution that generates the (1-α) correction. This derivation establishes that the potential form is fixed by the measure deformation rather than chosen to match the target equations. With this addition the single-potential reproduction of all epochs follows directly from the equations of motion. revision: yes
-
Referee: [Derivation of conserved quantity and cosmological equations] The equations of motion include a friction-like term yet yield a conserved quantity with memory-like fractional kinetic energy. The manuscript must demonstrate explicitly how this conserved quantity, combined with the deformed potential, produces the exact FLRW set without additional ansätze, particularly for the radiation and accelerated phases. The reduction at α=1 is automatic, but the necessity of the (1-α) deviation for Λ must be shown from the kernel rather than by construction.
Authors: We agree that the passage from the conserved quantity to the full set of FLRW equations needs to be expanded. The revised version will include a complete, step-by-step derivation that begins from the memory-like fractional kinetic term, incorporates the deformed potential, and arrives at the background equations for matter, radiation, and accelerated epochs without introducing extra assumptions. The (1-α) term for the effective cosmological constant will be traced directly to the kernel structure, with the α=1 reduction shown as the limiting case of that same derivation. revision: yes
Circularity Check
α-dependent effective potential and emergent Λ are introduced to enforce FLRW match by construction
specific steps
-
self definitional
[Abstract]
"by generalizing the standard Newtonian potential to an α-dependent effective potential induced by the underlying measure, the resulting cosmological equations exhibit an effective correspondence with relativistic FLRW cosmology at the level of background dynamics. ... an effective cosmological constant emerges, controlled by the small deviation of α from the Newtonian limit."
The effective potential is presented as induced by the measure, yet its α-dependence is defined precisely so that insertion into the action produces the Friedmann and acceleration equations with an emergent Λ term proportional to (1-α). The 'emergence' therefore reduces to a reparametrization of the input deformation rather than a derived consequence.
-
fitted input called prediction
[Abstract]
"We show that, with a single unified potential, the matter-dominated, radiation-dominated, and present accelerated phases are obtained self-consistently, while the latter two epochs cannot be described within standard Newtonian cosmology."
The unified potential is chosen to reproduce all three epochs simultaneously; the reproduction is therefore a consistency check on the imposed functional form rather than a prediction independent of the choice of potential.
full rationale
The derivation introduces a time-dependent fractional kernel with parameter α, then posits an α-dependent effective potential 'induced by the underlying measure' whose explicit form is selected so that the deformed Newtonian action yields background equations identical to FLRW (including a term proportional to (1-α) acting as Λ). The reduction of the equations to the target cosmology is therefore enforced by the choice of generalization rather than obtained as an independent output of the kernel; the single unified potential is likewise tuned to recover matter, radiation, and accelerated phases simultaneously. This matches the self-definitional pattern where the deformation parameter directly parametrizes the desired emergent feature.
Axiom & Free-Parameter Ledger
free parameters (1)
- α =
|α - 1| << 1
axioms (1)
- domain assumption The time-dependent fractional kernel can be interpreted as a nontrivial temporal integration measure.
invented entities (1)
-
α-dependent effective potential
no independent evidence
Lean theorems connected to this paper
-
IndisputableMonolith/Cost/FunctionalEquation.leanwashburn_uniqueness_aczel contradicts?
contradictsCONTRADICTS: the theorem conflicts with this paper passage, or marks a claim that would need revision before publication.
by generalizing the standard Newtonian potential to an α-dependent effective potential induced by the underlying measure... an effective cosmological constant emerges, controlled by the small deviation of α from the Newtonian limit
-
IndisputableMonolith/Foundation/BranchSelection.leanbranch_selection contradicts?
contradictsCONTRADICTS: the theorem conflicts with this paper passage, or marks a claim that would need revision before publication.
We consider a new interpolate fractional potential as Φ_α(a;α)=R(α)a^{-2}W_rad(a)+L(α)a^2 W_Λ(a)
What do these tags mean?
- matches
- The paper's claim is directly supported by a theorem in the formal canon.
- supports
- The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
- extends
- The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
- uses
- The paper appears to rely on the theorem as machinery.
- contradicts
- The paper's claim conflicts with a theorem or certificate in the canon.
- unclear
- Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.
Forward citations
Cited by 2 Pith papers
-
Evolution of density perturbations in fractional cosmology
Fractional cosmology modifies density perturbation growth via parameter α, yielding a new upper bound α ≲ 1.07 from σ8 normalization and Sachs-Wolfe constraints.
-
Emergent inflation in fractional cosmology
Fractional cosmology produces emergent inflation as a stable attractor from a non-singular pre-inflationary regime, with the number of e-folds related to the fractional parameter α and a subsequent radiation-dominated era.
Reference graph
Works this paper leans on
-
[1]
I. Newton, Philosophiæ naturalis principia mathematica (mathematical principles of natural philosophy), London (1687) 1687 (1687) (1987) 1687
work page 1987
-
[2]
W. Yourgrau, S. Mandelstam, Variational principles in dynamics and quantum theory, Courier Corporation, 2012
work page 2012
- [3]
-
[4]
L. D. Landau, E. M. Lifshitz, Mechanics and electrodynamics, Elsevier, 2013
work page 2013
-
[5]
R. d’Inverno, J. Vickers, Introducing Einstein’s relativity: a deeper understanding, Oxford University Press, 2022
work page 2022
-
[6]
H. Kragh, Niels Bohr and the quantum atom: The Bohr model of atomic structure 1913- 1925, Oxford University Press, 2012
work page 1913
-
[7]
L. D. Landau, E. M. Lifshitz, Quantum mechanics: non-relativistic theory, V ol. 3, Elsevier, 2013
work page 2013
-
[8]
L. D. Landau, E. Lifshitz, C. Holbrow, The classical theory of fields (1963)
work page 1963
-
[9]
K. S. Thorne, C. W. Misner, J. A. Wheeler, Gravitation, Freeman San Francisco, 2000
work page 2000
-
[10]
L. D. Landau, E. M. Lifshitz, Fluid Mechanics: V olume 6, V ol. 6, Elsevier, 1987
work page 1987
-
[11]
F. M. White, J. Majdalani, Viscous fluid flow, V ol. 3, McGraw-Hill New York, 2006
work page 2006
-
[12]
Lanczos, The variational principles of mechanics, Courier Corporation, 2012
C. Lanczos, The variational principles of mechanics, Courier Corporation, 2012
work page 2012
-
[13]
Laskin, Fractional quantum mechanics, Phys
N. Laskin, Fractional quantum mechanics, Phys. Rev. E 62 (3) (2000) 3135.arXiv:1009. 5533,doi:10.1103/PhysRevE.62.3135
-
[14]
J. Dong, M. Xu, Space–time fractional schrödinger equation with time-independent poten- tials, Journal of Mathematical Analysis and Applications 344 (2) (2008) 1005–1017. 24
work page 2008
-
[15]
S. M. M. Rasouli, S. Jalalzadeh, P. V . Moniz, Broadening quantum cosmology with a fractional whirl, Mod. Phys. Lett. A 36 (14) (2021) 2140005.arXiv:2101.03065, doi:10.1142/S0217732321400058
-
[16]
E. A. Milne, A newtonian expanding universe, The Quarterly Journal of Mathematics (1) (1934) 64–72
work page 1934
-
[17]
W. H. McCrea, E. A. Milne, Newtonian universes and the curvature of space, The quarterly journal of mathematics 1 (1) (1934) 73–80
work page 1934
-
[18]
McCrea, Newtonian cosmology, Nature 175 (4454) (1955) 466–466
W. McCrea, Newtonian cosmology, Nature 175 (4454) (1955) 466–466
work page 1955
-
[19]
Laskin, Fractional quantum mechanics, Physical Review E 62 (3) (2000) 3135
N. Laskin, Fractional quantum mechanics, Physical Review E 62 (3) (2000) 3135
work page 2000
-
[20]
S. I. Muslih, O. P. Agrawal, D. Baleanu, A fractional schrödinger equation and its solution, International Journal of Theoretical Physics 49 (8) (2010) 1746–1752
work page 2010
-
[21]
A. Iomin, Fractional-time schrödinger equation: fractional dynamics on a comb, Chaos, Solitons & Fractals 44 (4-5) (2011) 348–352
work page 2011
-
[22]
Lim, Editorial to special issue on fractional quantum theory (2021)
S. Lim, Editorial to special issue on fractional quantum theory (2021)
work page 2021
-
[23]
X. Duan, C. Ma, H. Huang, K. Deng, Uniform operator: Aligning fractional time quantum mechanics with basic physical principles, Available at SSRN 4685105 (2024)
work page 2024
- [24]
- [25]
-
[26]
G. Calcagni, Classical and quantum gravity with fractional operators, Classical and Quan- tum Gravity 38 (16) (2021) 165005
work page 2021
-
[27]
G. Calcagni, Quantum scalar field theories with fractional operators, Classical and Quan- tum Gravity 38 (16) (2021) 165006
work page 2021
- [28]
-
[29]
E. W. de Oliveira Costa, R. Jalalzadeh, P. F. da Silva, Junior., S. M. M. Rasouli, S. Jalalzadeh, Estimated Age of the Universe in Fractional Cosmology, Fractal Fract. 7 (2023) 854.arXiv:2310.09464,doi:10.3390/fractalfract7120854
-
[30]
S. M. M. Rasouli, S. Cheraghchi, P. Moniz, Fractional scalar field cosmology, Fractal and Fractional 8 (5) (2024) 281
work page 2024
-
[31]
R. G. Landim, Fractional dark energy: Phantom behavior and negative absolute tempera- ture, Physical Review D 104 (10) (2021) 103508. 25
work page 2021
-
[32]
R. A. El-Nabulsi, W. Anukool, Schwarzschild spacetime in fractal dimensions: Deflec- tion of light, supermassive black holes and temperature effects, Modern Physics Letters A 39 (25n26) (2024) 2450124
work page 2024
-
[33]
M. A. García-Aspeitia, G. Fernandez-Anaya, A. Hernández-Almada, G. Leon, J. Magaña, Cosmology under the fractional calculus approach, Monthly Notices of the Royal Astro- nomical Society 517 (4) (2022) 4813–4826
work page 2022
-
[34]
J. Socorro, J. J. Rosales, Quantum fractionary cosmology: K-essence theory, Universe 9 (4) (2023) 185
work page 2023
- [35]
-
[36]
B. Micolta-Riascos, A. D. Millano, G. Leon, B. Droguett, E. González, J. Magaña, Frac- tional einstein–gauss–bonnet scalar field cosmology, Fractal and Fractional 8 (11) (2024) 626
work page 2024
-
[37]
R. El-Nabulsi, C. Godinho, I. Vancea, Fractional mimetic dark matter: A fractional action- like variational approach, Modern Physics Letters A 39 (31n32) (2024) 2450147
work page 2024
-
[38]
B. Micolta-Riascos, B. Droguett, G. Mattar Marriaga, G. Leon, A. Paliathanasis, L. del Campo, Y . Leyva, Fractional time-delayed differential equations: Applications in cosmo- logical studies, Fractal and Fractional 9 (5) (2025) 318
work page 2025
-
[39]
S. Jalalzadeh, H. Moradpour, G. R. Jafari, P. R. Moniz, Fractional schwarzschild- tangherlini black hole with a fractal event horizon, Classical and Quantum Gravity (2025)
work page 2025
- [40]
-
[41]
S. Rasouli, P. V . Moniz, Exact cosmological solutions in modified brans–dicke theory, Clas- sical and Quantum Gravity 33 (3) (2016) 035006
work page 2016
-
[42]
S. Rasouli, R. Pacheco, M. Sakellariadou, P. V . Moniz, Late time cosmic acceleration in modified sáez–ballester theory, Physics of the Dark Universe 27 (2020) 100446
work page 2020
-
[43]
S. M. M. Rasouli, Noncommutativity, Sáez–Ballester Theory and Kinetic Inflation, Uni- verse 8 (3) (2022) 165.arXiv:2203.00765,doi:10.3390/universe8030165
- [44]
-
[45]
S. Rasouli, J. Marto, Phase space noncommutativity, power-law inflation and quantum cos- mology, Chaos, Solitons & Fractals 187 (2024) 115349
work page 2024
-
[46]
Riewe, Nonconservative lagrangian and hamiltonian mechanics, Physical Review E 53 (2) (1996) 1890
F. Riewe, Nonconservative lagrangian and hamiltonian mechanics, Physical Review E 53 (2) (1996) 1890
work page 1996
-
[47]
Riewe, Mechanics with fractional derivatives, Physical Review E 55 (3) (1997) 3581
F. Riewe, Mechanics with fractional derivatives, Physical Review E 55 (3) (1997) 3581. 26
work page 1997
-
[48]
W. S. Chung, Fractional newton mechanics with conformable fractional derivative, Journal of computational and applied mathematics 290 (2015) 150–158
work page 2015
-
[49]
G. U. Varieschi, Applications of fractional calculus to newtonian mechanics, arXiv preprint arXiv:1712.03473 (2017)
work page internal anchor Pith review Pith/arXiv arXiv 2017
-
[50]
E. Elzahar, A. Gaber, A. Aljohani, J. T. Machado, A. Ebaid, Generalized newtonian frac- tional model for the vertical motion of a particle, Applied Mathematical Modelling 88 (2020) 652–660
work page 2020
-
[51]
G. Calcagni, Quantum field theory, gravity and cosmology in a fractal universe, Journal of High Energy Physics 2010 (3) (2010) 120
work page 2010
-
[52]
Calcagni, Fractal universe and quantum gravity, Physical review letters 104 (25) (2010) 251301
G. Calcagni, Fractal universe and quantum gravity, Physical review letters 104 (25) (2010) 251301
work page 2010
-
[53]
V . Shchigolev, Fractional einstein–hilbert action cosmology, Modern Physics Letters A 28 (14) (2013) 1350056
work page 2013
-
[54]
V . Shchigolev, Testing fractional action cosmology, The European Physical Journal Plus 131 (8) (2016) 256
work page 2016
-
[55]
R. A. El-Nabulsi, Fractional action cosmology with variable order parameter, International Journal of Theoretical Physics 56 (4) (2017) 1159–1182
work page 2017
-
[56]
B. Micolta-Riascos, A. D. Millano, G. Leon, C. Erices, A. Paliathanasis, Revisiting frac- tional cosmology, Fractal and Fractional 7 (2) (2023) 149
work page 2023
-
[57]
E. González, G. Leon, G. Fernandez-Anaya, Exact solutions and cosmological constraints in fractional cosmology, Fractal and Fractional 7 (5) (2023) 368
work page 2023
- [58]
- [59]
-
[60]
S. P. Kim, Squeezed states of the generalized minimum uncertainty state for the caldirola– kanai hamiltonian, Journal of Physics A: Mathematical and General 36 (48) (2003) 12089
work page 2003
-
[61]
L. C. Vestal, Z. E. Musielak, Bateman oscillators: Caldirola-kanai and null lagrangians and gauge functions, Physics 3 (2) (2021) 449–458
work page 2021
- [62]
-
[63]
W. H. McCrea, On the significance of newtonian cosmology, Astronomical Journal, V ol. 60, p. 271 60 (1955) 271
work page 1955
- [64]
-
[65]
T. F. Jordan, Cosmology calculations almost without general relativity, American journal of physics 73 (7) (2005) 653–662
work page 2005
-
[66]
G. F. Ellis, G. W. Gibbons, Discrete newtonian cosmology, Classical and Quantum Gravity 31 (2) (2013) 025003
work page 2013
-
[67]
F. J. Tipler, Newtonian cosmology revisited, Monthly Notices of the Royal Astronomical Society 282 (1) (1996) 206–210
work page 1996
-
[68]
L. Gouba, Quantum Newtonian Cosmology Revisited, LHEP 2022 (2022) 321.arXiv: 2104.05524,doi:10.31526/lhep.2022.321
-
[69]
W. H. McCrea, Relativity theory and the creation of matter, Proceedings of the Royal Soci- ety of London. Series A. Mathematical and Physical Sciences 206 (1087) (1951) 562–575
work page 1951
-
[70]
S. R. Green, R. M. Wald, Newtonian and relativistic cosmologies, Physical Review D—Particles, Fields, Gravitation, and Cosmology 85 (6) (2012) 063512
work page 2012
-
[71]
J. D. Barrow, Non-Euclidean Newtonian Cosmology, Class. Quant. Grav. 37 (12) (2020) 125007.arXiv:2002.10155,doi:10.1088/1361-6382/ab8437
-
[72]
Q. Vigneron, On non-euclidean newtonian theories and their cosmological backreaction, Classical and Quantum Gravity 39 (15) (2022) 155006
work page 2022
-
[73]
V . Faraoni, F. Atieh, Turning a Newtonian analogy for FLRW cosmology into a rel- ativistic problem, Phys. Rev. D 102 (4) (2020) 044020.arXiv:2006.07418,doi: 10.1103/PhysRevD.102.044020
-
[74]
S. M. M. Rasouli, Inflation in fractional Newtonian cosmology (3 2026).arXiv:2603. 04712
work page 2026
-
[75]
S. M. M. Rasouli, Evolution of density perturbations in fractional Newtonian cosmology (3 2026).arXiv:2603.07781
work page internal anchor Pith review Pith/arXiv arXiv 2026
-
[76]
S. M. M. Rasouli, A minimal fractional deformation of newtonian gravity, see arXiv (2026)
work page 2026
-
[77]
S. M. M. Rasouli, J. Marto, P. V . Moniz, Kinetic inflation in deformed phase space brans– dicke cosmology, Physics of the Dark Universe 24 (2019) 100269
work page 2019
-
[78]
S. Rasouli, F. Shojai, Geodesic deviation equation in brans–dicke theory in arbitrary di- mensions, Physics of the Dark Universe 32 (2021) 100781
work page 2021
-
[79]
Rasouli, Noncommutativity, sáez–ballester theory and kinetic inflation, Universe 8 (3) (2022) 165
S. Rasouli, Noncommutativity, sáez–ballester theory and kinetic inflation, Universe 8 (3) (2022) 165
work page 2022
-
[80]
S. Rasouli, M. Sakellariadou, P. V . Moniz, Geodesic deviation in sáez–ballester theory, Physics of the Dark Universe 37 (2022) 101112
work page 2022
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.