Bibekananda Nayak

Scopus Publications

Impact of dynamical dark energy on black hole dynamics in an accelerated expanding universe
Debasis Sahu, Bibekananda Nayak, Lambodar Prasad Singh
Physics of the Dark Universe, 2025
Modified gravity effects on black hole evolution: A power-law cosmology approach
Suraj Kumar Pati, Suryakanta Swain, Bibekananda Nayak
International Journal of Modern Physics A, 2025
In this study, power-law based cosmology is utilized to explore the universe’s accelerated expansion and investigate black hole dynamics in the frame of metric type [Formula: see text] gravity, which obeys the Starobinsky model. Our results reveal that accretion of radiation prolongs the life span of a black hole whereas absorption of energy matter behaves oppositely during the latter part of the matter-dominated era. However, in both cases, the absorption is controlled by the parameter called accretion efficiency [Formula: see text]. More be the radiation accretion efficiency, the more mass a black hole would gain and the case is opposite for matter accretion efficiency. Furthermore, our calculations indicate that black holes with a formation mass exceeding [Formula: see text]g would experience matter accretion and evaporate much sooner than their typical expected lifespan. Additionally, if a black hole’s initial mass surpasses [Formula: see text]g, they will all evaporate simultaneously, contingent on their accretion rate. Additionally, our investigation on astrophysical constraints implies that the tendency of formation of black hole in our case is greater than that in the case of standard cosmology.
Exact analytical investigation of During oscillator vibration spectra under time-periodic oscillatory external force
Metin Aktas, Bibekananda Nayak, Biswanath Rath
International Journal of Modern Physics C, 2025
This work introduces an analytical technique for determining solutions to a highly nonlinear Duffing-harmonic oscillator model problem. The parametric solutions of Duffing oscillator vibrations for an undamped case are achieved analytically in terms of Adomian polynomials by implementing the straightforward approach of the Laplace Transformation, known as the Laplace Decomposition Procedure (LDP). Possible plots of both numerical and analytical results sketched for various parameters are also presented to support our discussion. These graphs demonstrate variations of position-time, speed-time, and speed-position for an undamped Duffing oscillator case. When analyzed in general, they can provide vibration pattern descriptions for a variety of physical and engineering system configurations. We also examine their physical structures and behavioral characteristics within the conceptual framework of chaotic formalism.
Unveiling the evolution of rotating black holes in loop quantum cosmology
Suryakanta Swain, Gourishankar Sahoo, Bibekananda Nayak
Scientific Reports, 2024
In this work, we aim to discuss about the evolution of rotating black holes (RBHs) within the context of loop quantum cosmology. Here, the main part of our research work focuses on the impacts of angular momentum based rotating parameter and accretion efficiency on the lifetime of RBHs. Our study reveals that accretion of dark energy would not significantly affect the evolution of RBHs, however higher value of rotating parameter could slightly delay the evaporation times of RBHs. Our analysis also depicts that the maximum value of rotating parameter for evolution of any RBH is $$10^{-8}M_i^2$$ , where $$M_i$$ is the formation mass of RBH. Moreover, from our calculation we found that the maximum mass of a presently existing supermassive black hole would be $$10^{48}\text {g}$$ , if it undergoes rotation. Also from astrophysical constraint analysis, we found that there is a greater tendency for formation of black holes in loop quantum cosmology than standard model of cosmology.
Cosmological parameters, accelerated expansion of the universe and metric f(R) gravity
Suraj Kumar Pati, Suryakanta Swain, Bibekananda Nayak
Astrophysics and Space Science, 2024
A revisit on the characteristics of Yao-Cheng non-linear oscillator
Biswanath Rath, Bibekananda Nayak, Pravanjan Mallick, Rati Ranjan Sahoo, Vedat Suat Erturk, Rania Wannan, Rabab Jarrar, Hussein Shanak, Jihad Asad
Journal of Low Frequency Noise Vibration and Active Control, 2023
We revisited the characteristic features of Yao-Cheng non-linear oscillator by employing both analytical as well as numerical approaches. Our study indicates that the solution of the non-linear oscillator shows oscillatory behaviour. Further, the phase portrait for this oscillator system reflects the closed loop signifying the stability of the system. Our results suggest the absence of damping in this physical system.
Generalized interacting dark energy model and loop quantum cosmology
Suryakanta Swain, Debasis Sahu, Debabrata Dwivedee, Gourishankar Sahoo, Bibekananda Nayak
Astrophysics and Space Science, 2022
Black hole dynamics in power-law based metric f(R) gravity
Suraj Kumar Pati, Bibekananda Nayak, Lambodar Prasad Singh
General Relativity and Gravitation, 2020
Interacting Holographic Dark Energy, the Present Accelerated Expansion and Black Holes
Bibekananda Nayak
Gravitation and Cosmology, 2020
We study the evolution of the universe by assuming an integrated model, which involves interacting dark energy and the holographic principle with the Hubble scale as an IR cutoff. First we determine the interaction rate at which matter is converting to dark energy. At the next step, we evaluate the equation of state parameter which describes the nature of dark energy. Our result predicts that the present state of the universe is dominated by quintessence type dark energy, and it will become phantom dominated in the near future. Again, our analysis successfully addresses the problem of present accelerated expansion of the universe and softens the coincidence problem. We also find that the universe was previously undergoing a decelerated phase of expansion and a transition from deceleration to acceleration should have occurred at a time $$t_{q=0}=0.732t_{0}$$ , where $$t_{0}$$ is the present age of the universe. Finally, we discuss the evolution of black holes in this environment.
Interacting quintessence model and accelerated expansion of the universe
Debasis Sahu, Bibekananda Nayak
Springer Proceedings in Physics, 2020
Accretion of radiation and rotating primordial black holes
S. Mahapatra, B. Nayak
Journal of Experimental and Theoretical Physics, 2016
Vacuum Energy and Primordial Black Holes in Brans-Dicke Theory
D. Dwivedee, B. Nayak, L. P. Singh
International Journal of Theoretical Physics, 2015
Evolution of Primordial Black Holes in Loop Quantum Cosmology
D. Dwivedee, B. Nayak, M. Jamil, L. P. Singh, R. Myrzakulov
Journal of Astrophysics and Astronomy, 2014
Evolution of primordial black hole mass spectrum in brans-dicke theory
D. DWIVEDEE, B. NAYAK, L. P. SINGH
International Journal of Modern Physics D, 2013
Brans-Dicke theory and primordial black holes in early matter-dominated era
B. Nayak, L. P. Singh
International Journal of Theoretical Physics, 2012
Effect of vacuum energy on evolution of primordial black holes in Einstein gravity
Bibekananda Nayak, Mubasher Jamil
Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 2012
Phantom energy accretion and primordial black holes evolution in Brans–Dicke theory
B. Nayak, L. P. Singh
European Physical Journal C, 2011
Accretion, primordial black holes and standard cosmology
B NAYAK, L P SINGH
Pramana Journal of Physics, 2011
Note on nonstationarity and accretion by primordial black holes in Brans-Dicke theory
B. Nayak, L. P. Singh
Physical Review D Particles Fields Gravitation and Cosmology, 2010
Astrophysical constraints on primordial black holes in Brans-Dicke theory
B Nayak, A.S Majumdar, L.P Singh
Journal of Cosmology and Astroparticle Physics, 2010
Effect of accretion on primordial black holes in Brans-Dicke theory
B. Nayak, L. P. Singh, A. S. Majumdar
Physical Review D Particles Fields Gravitation and Cosmology, 2009
Present acceleration of the universe, holographic energy and bransdicke theory
B. NAYAK, L. P. SINGH
Modern Physics Letters A, 2009

RECENT SCHOLAR PUBLICATIONS

On the Advancement of Quantum Cosmology and Its Future Research Prospects: A Bibliometric Study and Network Analysis
S Swain, G Sahoo, SC Sahu, B Nayak
Next Research, 101444 , 2026
2026
Impact of dynamical dark energy on black hole dynamics in an accelerated expanding universe
D Sahu, B Nayak, LP Singh
Physics of the Dark Universe 50, 102117 , 2025
2025
Fate of Dark Energy Contaminated Universe in Standard Cosmology
D Sahu, B Nayak
Proceedings of International Conference on Sustainable Science and … , 2025
2025
Cosmological Dynamics and Black Hole Accretion in Starobinsky-type f(R) gravity
SK Pati, B Nayak
Space, Time and Fundamental Interactions, 72-80 , 2025
2025
Modified gravity effects on black hole evolution: A power-law cosmology approach
SK Pati, S Swain, B Nayak
International Journal of Modern Physics A 40 (28), 2550131 , 2025
2025
CMBR Constraint on Black Hole Formation in Standard Cosmology
D Sahu, B Nayak
Recent Trends in Applied Physics and Material Science, 143-144 , 2025
2025
Metric f(R) Gravity and Black Hole Evolution: A Theoretical Exploration
SK Pati, B Nayak
Recent Trends in Applied Physics and Material Science, 109-111 , 2025
2025
Radiation Accretion and Rotating Black Hole Longevity in Brans-Dicke Theory
BK Sahoo, S Swain, B Nayak
Recent Trends in Applied Physics and Material Science, 138-140 , 2025
2025
Exact analytical investigation of Duffing oscillator vibration spectra under time-periodic oscillatory external force
M Aktas, B Nayak, B Rath
International Journal of Modern Physics C 36 (04), 2450214 , 2025
2025
Present Matter Density Constraint on Black Hole Formation
D Sahu, B Nayak
43rd meeting of the Astronomical Society of India (ASI, P135 , 2025
2025
Cosmological Dynamics and Accelerated Expansion in Starobinsky-Type Metric f (R) Gravity
SK Pati, B Nayak
43rd meeting of the Astronomical Society of India (ASI, P125 , 2025
2025
Astrophysical Constraints on Black Hole Formation in Interacting Dark Energy Model
D Sahu, B Nayak
International Conference on Interconnections between Particle Physics and … , 2024
2024
Effects of Quantum Gravity in the Kerr Black Hole Paradigm
S Swain, G Sahoo, B Nayak
International Conference on Interconnections between Particle Physics and … , 2024
2024
Unveiling the evolution of rotating black holes in loop quantum cosmology
S Swain, G Sahoo, B Nayak
Scientific Reports 14 (1), 16928 , 2024
2024
Citations: 7
Cosmological parameters, accelerated expansion of the universe and metric gravity
SK Pati, S Swain, B Nayak
Astrophysics and Space Science 369 (7), 72 , 2024
2024
Citations: 6
Helium Abundance Constraint on Black Hole Formation
S Swain, D Sahu, G Sahoo, B Nayak
Proceedings of 68th DAE-BRNS Symposium on Nuclear Physics 68 (C43), 815-816 , 2024
2024
Deuterium Photodisintegration Constraint on Black Hole Formation
D Sahu, S Swain, B Nayak
Proceedings of 68th DAE-BRNS Symposium on Nuclear Physics 68 (C20), 769-770 , 2024
2024
A revisit on the characteristics of Yao-Cheng non-linear oscillator
B Rath, B Nayak, P Mallick, RR Sahoo, VS Erturk, R Wannan, R Jarrar, ...
Journal of Low Frequency Noise, Vibration and Active Control 42 (1), 470-474 , 2023
2023
Citations: 3
Generalized interacting dark energy model and loop quantum cosmology
S Swain, D Sahu, D Dwivedee, G Sahoo, B Nayak
Astrophysics and Space Science 367 (6), 57 , 2022
2022
Citations: 7
Interacting quintessence model and accelerated expansion of the universe
D Sahu, B Nayak
Workshop on Frontiers in High Energy Physics 2019: FHEP 2019, 93-97 , 2020
2020
Citations: 4

MOST CITED SCHOLAR PUBLICATIONS

Effect of vacuum energy on evolution of primordial black holes in Einstein gravity
B Nayak, M Jamil
Physics Letters B 709 (3), 118-122 , 2012
2012
Citations: 50
Accretion, primordial black holes and standard cosmology
B Nayak, LP Singh
Pramana 76 (1), 173-181 , 2011
2011
Citations: 49
Present acceleration of the universe, holographic energy and Brans–Dicke theory
B Nayak, LP Singh
Modern Physics Letters A 24 (22), 1785-1792 , 2009
2009
Citations: 49
Effect of accretion on primordial black holes in Brans-Dicke theory
B Nayak, LP Singh, AS Majumdar
Physical Review D—Particles, Fields, Gravitation, and Cosmology 80 (2), 023529 , 2009
2009
Citations: 34
Evolution of primordial black holes in loop quantum cosmology
D Dwivedee, B Nayak, M Jamil, LP Singh, R Myrzakulov
Journal of Astrophysics and Astronomy 35 (1), 97-106 , 2014
2014
Citations: 27
Astrophysical constraints on primordial black holes in Brans-Dicke theory
B Nayak, AS Majumdar, LP Singh
Journal of Cosmology and Astroparticle Physics 2010 (08), 039-039 , 2010
2010
Citations: 20
Interacting Holographic Dark Energy, the Present Accelerated Expansion and Black Holes
B Nayak
Gravitation and Cosmology 26 (3), 273-280 , 2020
2020
Citations: 19
Phantom energy accretion and primordial black holes evolution in Brans–Dicke theory
B Nayak, LP Singh
The European Physical Journal C 71 (12), 1837 , 2011
2011
Citations: 15
Note on nonstationarity and accretion by primordial black holes in Brans-Dicke theory
B Nayak, LP Singh
Physical Review D—Particles, Fields, Gravitation, and Cosmology 82 (12), 127301 , 2010
2010
Citations: 13
Brans–Dicke theory and primordial black holes in early matter-dominated era
B Nayak, LP Singh
International Journal of Theoretical Physics 51 (5), 1386-1395 , 2012
2012
Citations: 11
Accretion of radiation and rotating primordial black holes
S Mahapatra, B Nayak
Journal of Experimental and Theoretical Physics 122 (2), 243-247 , 2016
2016
Citations: 10
Black Hole Dynamics in Power-law based Metric Gravity
SK Pati, B Nayak, LP Singh
General Relativity and Gravitation 52, 78 , 2020
2020
Citations: 8
Evolution of primordial black hole mass spectrum in Brans–Dicke theory
D Dwivedee, B Nayak, LP Singh
International Journal of Modern Physics D 22 (05), 1350022 , 2013
2013
Citations: 8
Unveiling the evolution of rotating black holes in loop quantum cosmology
S Swain, G Sahoo, B Nayak
Scientific Reports 14 (1), 16928 , 2024
2024
Citations: 7
Generalized interacting dark energy model and loop quantum cosmology
S Swain, D Sahu, D Dwivedee, G Sahoo, B Nayak
Astrophysics and Space Science 367 (6), 57 , 2022
2022
Citations: 7
Cosmological parameters, accelerated expansion of the universe and metric gravity
SK Pati, S Swain, B Nayak
Astrophysics and Space Science 369 (7), 72 , 2024
2024
Citations: 6
Interacting quintessence model and accelerated expansion of the universe
D Sahu, B Nayak
Workshop on Frontiers in High Energy Physics 2019: FHEP 2019, 93-97 , 2020
2020
Citations: 4
Vacuum energy and primordial black holes in brans-dicke theory
D Dwivedee, B Nayak, LP Singh
International Journal of Theoretical Physics 54 (7), 2321-2333 , 2015
2015
Citations: 4
A revisit on the characteristics of Yao-Cheng non-linear oscillator
B Rath, B Nayak, P Mallick, RR Sahoo, VS Erturk, R Wannan, R Jarrar, ...
Journal of Low Frequency Noise, Vibration and Active Control 42 (1), 470-474 , 2023
2023
Citations: 3
Effect of Interacting Dark Energy on Expansion of the Universe
D Sahu, B Nayak
arXiv preprint arXiv:1912.12000 , 2019
2019
Citations: 2

Bibekananda Nayak

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Scopus Publications

RECENT SCHOLAR PUBLICATIONS

MOST CITED SCHOLAR PUBLICATIONS