42 citations · 82 across the 32 of their papers we have counts for
32 papers
New results concerning the curvature of the Universe
Maxim Khlopov, Maxim Krasnov, Jan Novák
One of the fundamental questions we ask in cosmology is what the spatial curvature of the universe is. Experimental observations show that the universe is very close to being spati…
Accelerating expansion and isotropic sky-hemisphere consistency in Pantheon+ supernovae: a revised analysis in the dark energy debate
Saibal Ray, Maxim Khlopov, Aritra Sanyal +2
We perform four independent decompositions of the deceleration parameter using 1564 Type Ia supernovae (SNe Ia) from the Pantheon+ catalogue: by redshift bin, sky hemisphere,…
Observationally Constrained Cosmological model in Gravity with parameterization
Vinod Kumar Bhardwaj, Maxim Khlopov, Maxim Krasnov +1
In the present work, we explore an observationally constrained cosmological model in the framework of gravity, where denotes the non-metricity scalar and…
Strong primordial inhomogeneities of axion-like field in Einstein-Gauss-Bonnet gravity
M. A. Krasnov, D. Z. Berkimbayev, A. Addazi +2
In this paper we consider complex scalar field with Mexican hat potential coupled with Gauss-Bonnet scalar resulting in restored U(1) symmetry at the stage of inflation, correspond…
Solar System and Atomic Clock Bounds on Locally Coupled Swampland Scalars
Suraj Gavhale, Maxim Khlopov, Oem Trivedi +1
We study how local measurements constrain light scalar fields that are relevant in late time cosmic acceleration and are often discussed in connection with swampland criteria. Star…
Machine Learning for Multi-messenger Probes of New Physics and Cosmology: A Review and Perspective
Andrea Addazi, Konstantin Belotsky, Vitaly Beylin +18
The multi-messenger exploration of dark matter and physics beyond the Standard Model has emerged as a central direction in modern astro-particle physics, particularly following the…
Proceedings to the 28th Workshop What Comes Beyond the Standard Models
Norma Susana Mankoč Borštnik, Holger Bech Nielsen, Maxim Yu. Khlopov +1
This year was 28th time that our series of workshops entitled "What Comes Beyond the Standard Models?" took place. The series started in 1998 with the idea of organising a workshop…
Chemical evolution of antimatter domains in early Universe
A. I. Dembitskaia, Stephane Weiss, M. Yu. Khlopov +1
According to modern physics, our Universe is baryon-asymmetric. That phenomenon can not be described in the frameworks of the Standard Model of particle physics. Globally, the Univ…
Particle production and Higgs reheating
Aarav Shah, Kanabar Jay, Maxim Khlopov +2
Reheating is essential for transforming the cold, vacuum dominated Universe at the end of inflation into the hot thermal bath required by the Standard Model. In many well motivated…
Inflation and Primordial Perturbations in Fractal Cosmology
Aarav Shah, Paulo Moniz, Maxim Khlopov +2
We study inflationary dynamics within the framework of fractal cosmology, where space is characterized by an effective non-integer dimension . In our work, fractal effects are s…
Probing Lorentz Invariance Violation at High-Energy Colliders via Intermediate Massive Boson Mass Measurements: Z Boson Example
Z. Kepuladze, J. Jejelava
Lorentz invariance (LI) is a foundational principle of modern physics, yet its possible violation (LIV) remains an intriguing window to physics beyond the Standard Model. While str…
How to present and interpret the Feynman diagrams in this theory describing fermion and boson fields in a unique way, in comparison with the Feynman diagrams so far presented and interpreted?
N. S. Mankoč Borštnik, H. B. Nielsen
Although the internal spaces describing spins and charges of fermions' and bosons' second-quantised fields have such different properties, yet we can all describe them equivalently…
Spontaneous baryosynthesis with large initial phase
Maxim Krasnov, Maxim Khlopov, Ufuk Aydemir
We numerically investigate particle production by a pseudo-Nambu-Goldstone boson (pNGB) in spontaneous baryogenesis, focusing on large initial misalignment angles. Our analysis con…
Domain Wall formation from spontaneous symmetry breaking/restoration in Scalar-Einstein-Gauss-Bonnet theory
Maxim Krasnov, Daulet Berkimbayev, Andrea Addazi +2
This study offers a detailed analysis of domain wall formation and its cosmological consequences in Einstein-Gauss-Bonnet gravity coupled to a scalar field. A central aspect of the…
Cosmology in the De Donder-Weyl Formulation of Einstein-Cartan Gravity
Aarav Shah, M. Yu. Khlopov, M. Krasnov
We investigate torsion-driven cosmological dynamics within the framework of Einstein-Cartan gravity using the De Donder-Weyl Hamiltonian formalism, where the tetrad and Lorentz con…
Unified Pati-Salam from Noncommutative Geometry: Overview and Phenomenological Remarks
Ufuk Aydemir
The lack of clear new-physics signals at the LHC searches motivates models that can guide current and future collider searches. The spectral action principle within the noncommutat…
Inferring the Merger History of Primordial Black Holes from Gravitational-Wave data and the Stochastic Signatures
Sourav Roy Chowdhury, Aritra Basak, Maxim Khlopov +1
Primordial black holes (PBHs) are well-motivated candidates for cold dark matter and may also account for a fraction of the binary black hole mergers observed by the LIGO-Virgo-KAG…
Spontaneous baryogenesis with large misalignment
Maxim Krasnov, Ufuk Aydemir, Maxim Khlopov
We investigate particle production by a pseudo-Nambu-Goldstone boson (pNGB) in the spontaneous baryogenesis scenario for large misalignment angles. Since the fermionic backreaction…
Strong primordial inhomogeneities induced by axion-like scalar field
Maxim A. Krasnov, Maxim Yu. Khlopov, Oem Trivedi
Our goal is to consider Axion-like particle (ALP) model to investigate the behaviour of space-time in the vicinity of the domain wall, induced by axion-like field. Here we present…
Quantum-mechanical numerical model of interaction between dark atom and nucleus of substance
T. E. Bikbaev, M. Yu. Khlopov, A. G. Mayorov
The hypothesis of composite dark atoms may provide solution to the long-standing problem of direct searches for dark matter particles. The main problem of the dark atom…
Rips and regular future scenario with Holographic Dark Energy: A comprehensive look
I. Brevik, Maxim Khlopov, S. D. Odintsov +2
Interest on the possible future scenarios the universe could have has grew substantially with breakthroughs on late-time acceleration. Holographic dark energy (HDE) presents a very…
Kantowski-Sachs cosmological model with axion-like scalar field and dark energy
Maxim Krasnov, Oem Trivedi, Maxim Khlopov
We consider Axion-like particle (ALP) model to construct numerical spatially homogeneous anisotropic Kantowski-Sachs cosmological model. We present various analytical and numerical…
Stochastic gravitational wave background due to core collapse resulting in neutron stars
Sourav Roy Chowdhury, Maxim Khlopov
The stochastic background of gravitational wave signals arising from the core-collapse supernovae is produced through various complex mechanisms that need detailed and careful inve…
Holographic dark energy with Granda-Oliveros cutoff and ansatz based approach: An extended look
Oem Trivedi, Maxim Khlopov
Holographic dark energy models have proven to be a very interesting way to study various aspects of late-time acceleration of the universe. In this work we extensively study HDE mo…