Showing 21 - 40 results of 40 for search '"early universe"', query time: 0.07s Refine Results
  1. 21

    Anisotropic cosmology in q-deformed entropic gravity by Salih Kibaroğlu, Mustafa Senay

    Published 2025-03-01
    “…Finally, we analyze the axisymmetric solution of Bianchi type-I model and these findings highlight the potential impact of q-deformation on the dynamics of the early universe and its subsequent evolution.…”
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  2. 22

    Thermodynamics in Loop Quantum Cosmology by Li-Fang Li, Jian-Yang Zhu

    Published 2009-01-01
    “…Loop quantum cosmology (LQC) is very powerful to deal with the behavior of early universe. Moreover, the effective loop quantum cosmology gives a successful description of the universe in the semiclassical region. …”
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  3. 23

    Intermediate Mass Black Holes: Their Motion and Associated Energetics by C. Sivaram, Kenath Arun

    Published 2014-01-01
    “…We also consider their formation in the early universe and also discuss the possibility of supermassive black holes forming from mergers of several IMBH and compare the relevant time scales involved with other scenarios.…”
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  4. 24

    Strong Electroweak Phase Transition in a Model with Extended Scalar Sector by Mina Saeedhosseini, Ali Tofighi

    Published 2017-01-01
    “…Due to this first-order phase transition in the early universe gravitational waves are produced. We estimate the contributions such as the sound wave, the bubble wall collision, and the plasma turbulence to the stochastic gravitational wave background, and we find that the strength at the peak frequency is large enough to be detected at future gravitational interferometers such as eLISA. …”
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  5. 25

    Early matter domination at colliders: Long live the glueball! by Fady Bishara, Filippo Sala, Kai Schmidt-Hoberg

    Published 2025-02-01
    “…We prove that collider searches for long-lived particles (LLPs) can test the dynamics responsible for matter domination in the early universe. In this letter we concentrate on the specific example of glueballs from a GeV-scale confining dark sector and compute the dilution of cosmological relics induced by their decay. …”
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    Primordial Dark Energy from a Condensate of Spinors in a 5D Vacuum by Pablo Alejandro Sánchez, Mauricio Bellini

    Published 2013-01-01
    “…We found that the condensate of spinors studied here could be an interesting candidate to explain the presence of dark energy in the early universe. The dark energy density which we are talking about is poured into smaller subhorizon scales with the evolution of the inflationary expansion.…”
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  8. 28

    Loop quantum effects on direct detection prediction in two-scalar dark matter scenario by Karim Ghorbani, Parsa Ghorbani

    Published 2025-01-01
    “…Among two extra singlet scalars in the two-scalar model, the lighter one is stable and plays the role of dark matter candidate and the heavier one contributes in dark matter co-annihilation processes in thermal history of the early universe. It is already known that the two-scalar model at tree level, unlike the single-scalar dark matter model, can easily evade the bounds from direct detection (DD) experiments. …”
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  9. 29

    Irreversible Thermodynamic Description of Dark Matter and Radiation Creation during Inflationary Reheating by Juntong Su, Tiberiu Harko, Shi-Dong Liang

    Published 2017-01-01
    “…We investigate matter creation processes during the reheating period of the early Universe, by using the thermodynamic of open systems. …”
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  10. 30

    Lévy walk of pions in heavy-ion collisions by Dániel Kincses, Márton Nagy, Máté Csanád

    Published 2025-02-01
    “…In high-energy collisions of heavy nuclei, the strongly interacting Quark Gluon Plasma is created, which, similarly to the early Universe, undergoes a rapid expansion and transition back to hadronic matter. …”
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  11. 31

    Three-dimensional imaging of topologically protected strings in a multiferroic nanocrystal by Mansoor A. Najeeb, David Serban, Daniel G. Porter, Frank Lichtenberg, Stephen P. Collins, Alessandro Bombardi, Nicola A. Spaldin, Marcus C. Newton

    Published 2025-01-01
    “…Hexagonal manganite multiferroics are of particular interest as the properties of their symmetry-lowering phase transition can be described by a Mexican-hat-like potential energy surface. The early universe is proposed to have undergone a symmetry-lowering phase transition that is described by a similar Mexican-hat-like potential that gives rise to the formation of one-dimensional topologically protected defects known as cosmic strings. …”
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  12. 32

    Optomechanical Backreaction of Quantum Field Processes in Dynamical Casimir Effect by Xie, Yu-Cun, Butera, Salvatore, Hu, Bei-Lok

    Published 2024-06-01
    “…Backreaction of cosmological particle creation at the Planck time has been shown to play a significant role in the isotropization and homogenization of the early universe. Understanding the backreaction effects of quantum field processes in DCE is the goal of this work. …”
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  13. 33

    Dark matter annihilation via Breit-Wigner enhancement with heavier mediator by Yu Cheng, Shao-Feng Ge, Jie Sheng, Tsutomu T. Yanagida

    Published 2025-02-01
    “…We propose a new scenario that both the dark matter freeze-out in the early Universe and its possible annihilation for indirect detection around a supermassive black hole are enhanced by a Breit-Wigner resonance. …”
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  14. 34

    Generalising axion-like particle as the curvaton: sourcing primordial density perturbation and non-Gaussianities by Anish Ghoshal, Abhishek Naskar

    Published 2024-10-01
    “…Abstract We investigate the non-perturbatively generated axion-like particle (ALP) potential, involving fermions in the dark sector that couple to the ALP, in an early universe cosmological inflationary stage with the ALP being a spectator field. …”
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  15. 35

    Monster Radio Jet (>66 kpc) Observed in Quasar at z ∼​​​​​ 5 by Anniek J. Gloudemans, Frits Sweijen, Leah K. Morabito, Emanuele Paolo Farina, Kenneth J. Duncan, Yuichi Harikane, Huub J. A. Röttgering, Aayush Saxena, Jan-Torge Schindler

    Published 2025-01-01
    “…This discovery of the first ∼​​​​​100 kpc radio jet at z  > 4 shows that these objects exist despite energy losses from inverse Compton scattering and can put invaluable constraints on the formation of the first radio-loud sources in the early Universe.…”
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    Assessing the Dark Matter Content of Two Quasar Host Galaxies at z ∼ 6 through Gas Kinematics by Qinyue Fei, John D. Silverman, Seiji Fujimoto, Ran Wang, Luis C. Ho, Manuela Bischetti, Stefano Carniani, Michele Ginolfi, Gareth Jones, Roberto Maiolino, Wiphu Rujopakarn, N. M. Förster Schreiber, Juan M. Espejo Salcedo, L. L. Lee

    Published 2025-01-01
    “…Notably, while the masses of these supermassive black holes (SMBHs) are approximately 1 dex higher than the low-redshift relationship with stellar mass, the closer alignment of SMBH and halo masses with a local relationship may indicate that the early formation of these SMBHs is linked to their dark matter halos, providing insights into the coevolution of galaxies and black holes in the early Universe.…”
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