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Author

Utkarsh Kumar

Observed name: Kumar, Utkarsh
ORCID: 0000-0002-8158-2078
Observed ORCID: 0000-0002-8158-2078
OpenAlex ID: A5034301592
Cosmology with the Laser Interferometer Space Antenna
2023 · Pierre Auclair, David Bacon, et al. · Living Reviews in Relativity · 341
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
2025 · Eleonora Di Valentino, Jackson Levi Said, et al. · Physics of the Dark Universe · 321
Probing the early Universe cosmology with NANOGrav: Possibilities and limitations
2023 · Ido Ben-Dayan, Utkarsh Kumar, et al. · Physical review. D/Physical review. D. · 39
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Cosmology with the Laser Interferometer Space Antenna
2022 · Auclair, Pierre, Bacon, David, et al. · RWTH Publications (RWTH Aachen) · 24
Emergent dark energy from unparticles
2021 · Michał Artymowski, Ido Ben-Dayan, et al. · Physical review. D/Physical review. D. · 19
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Emergent Unparticles Dark Energy can restore cosmological concordance
2023 · Ido Ben-Dayan, Utkarsh Kumar · Journal of Cosmology and Astroparticle Physics · 17
Exact rotating black hole solutions for f(R) gravity by modified Newman Janis algorithm
2023 · Pankaj Chaturvedi, Utkarsh Kumar, et al. · The European Physical Journal C · 12
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Metric for a rotating object in an infrared corrected nonlocal gravity model
2018 · Utkarsh Kumar, Sukanta Panda, et al. · Physical review. D/Physical review. D. · 11
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Theoretical priors and the dark energy equation of state
2024 · Ido Ben-Dayan, Utkarsh Kumar · The European Physical Journal C · 10
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Hamiltonian formalism for nonlocal gravity models
2022 · Pawan Joshi, Utkarsh Kumar, et al. · International Journal of Geometric Methods in Modern Physics · 9
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Blackhole in nonlocal gravity: comparing metric from Newmann–Janis algorithm with slowly rotating solution
2020 · Utkarsh Kumar, Sukanta Panda, et al. · The European Physical Journal C · 9
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Banks-Zaks cosmology, inflation, and the Big Bang singularity
2020 · Michal Artymowski, Ido Ben-Dayan, et al. · Journal of Cosmology and Astroparticle Physics · 8
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More on emergent dark energy from unparticles
2022 · Michał Artymowski, Ido Ben-Dayan, et al. · Physical review. D/Physical review. D. · 7
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Primordial gravitational wave background as a probe of primordial black holes
2025 · Utkarsh Kumar · Physical review. D/Physical review. D. · 6
Impact of low ell's on large scale structure anomalies
2025 · Ido Ben-Dayan, Utkarsh Kumar, et al. · Journal of Cosmology and Astroparticle Physics · 6
Non-local cosmological models
2019 · Utkarsh Kumar, Sukanta Panda · Classical and Quantum Gravity · 5
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Probe of spatial geometry from scalar induced gravitational waves
2024 · Kumar, Utkarsh, Thattarampilly, Udaykrishna, et al. · arXiv (Cornell University) · 2
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Spherically symmetric static solutions, newtonian potential and degrees of freedom of a Nonlocal action
2018 · Kumar, Utkarsh, Panda, Sukanta · arXiv (Cornell University) · 2
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Cosmological constraints on non-cold dark matter from DESI DR2 measurements
2026 · Utkarsh Kumar, Abhijith Ajith, et al. · Physics Letters B · 1
Geodetic Motion Around Rotating Black Hole in Nonlocal Gravity
2021 · Utkarsh Kumar, Sukanta Panda, et al. · Springer proceedings in physics · 1
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Supernova Time Dilation in Hybrid Expansion-Tired-Light Cosmologies
2026 · Gupta, Rajendra P., Samaras, Nikolaos, et al. · arXiv (Cornell University)
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The PTA–CMB “tension” and bounds on extra radiation from Early-Universe models
2026 · Ido Ben-Dayan, Utkarsh Kumar, et al. · Corfu Summer Institute School and Workshops on Elementary Particle Physics and Gravity (CORFU)
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Cosmological consequences of a dynamical dark matter in the light of DESI DR2 measurements
2026 · Ajith, Abhijith, Kumar, Utkarsh · arXiv (Cornell University)
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Primordial Black Hole from Tensor-induced Density Fluctuation: First-order Phase Transitions and Domain Walls
2026 · Kumar, Utkarsh, Ghoshal, Anish · arXiv (Cornell University)
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Disentangling the origins of the NANOGrav signal: Early Universe models and ΔN bounds
2025 · Ido Ben-Dayan, Utkarsh Kumar, et al. · Journal of High Energy Astrophysics
Works count: 35
Citation count: 849
H-index: 9
I10-index: 9
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