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Relevant bibliographies by topics / Primordial phase

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Academic literature on the topic 'Primordial phase'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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Journal articles on the topic "Primordial phase"

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Occhionero, Franco, Luca Amendola, and Pier Stefano Corasaniti. "Primordial Bubbles within Primordial Bubbles." Symposium - International Astronomical Union 201 (2005): 497–98. http://dx.doi.org/10.1017/s0074180900216847.

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Two consecutive, distinct episodes of phase transition occurring during inflation may nucleate two generations of bubbles, one inside the other. We design a model of inflation that realizes this sequence and yields bubble spectra that are bimodal and tunable functions of phenomelogical parameters in turn combinations of microphysical parameters. We argue in favor of a tuning of the parameters such that the outer and earlier generation of bubbles becomes hundreds of Mpc/h in diameter (like the local Hubble bubbles of the literature) whereas the inner and later generation becomes tens of Mpc/h i

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Stahler, S. W., F. Palla, and E. E. Salpeter. "Primordial stellar evolution - The protostar phase." Astrophysical Journal 302 (March 1986): 590. http://dx.doi.org/10.1086/164018.

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Alvarenga, Flávio Gimenes, and Júlio César Fabris. "Primordial cosmology with a contraction phase." Classical and Quantum Gravity 12, no. 8 (1995): L69—L74. http://dx.doi.org/10.1088/0264-9381/12/8/001.

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Audouze, J. "Primordial Nucleosynthesis." Transactions of the International Astronomical Union 20, no. 1 (1988): 658–60. http://dx.doi.org/10.1017/s0251107x00007501.

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Primordial nucleosynthesis which is responsible for the formation of the lightest elements (D, 3He, 4HE and 7Li) might be as important as the overall expansion of the Universe and the cosmic background radiation to prove the occurrence of a dense and hot phase for the Unvierse about 15 billion years ago. As recalled in many reviews (e.g. refs. 1, 2) the standard Big Bang nucleosynthesis leads to two important conclusions regarding (i) a limitation of the baryonic density such that the corresponding cosmological parameter ΩB ≤ 0.1; (ii) a limitation of the number of neutrino flavours to 3-4 con

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Pritchard, Xavier, and Christian T. Byrnes. "Constraining the impact of standard model phase transitions on primordial black holes." Journal of Cosmology and Astroparticle Physics 2025, no. 01 (2025): 076. https://doi.org/10.1088/1475-7516/2025/01/076.

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Abstract Phase transitions in the early universe lead to a reduction in the equation of state of the primordial plasma. This exponentially enhances the formation rate of primordial black holes. However, this sensitivity to the equation of state is the same that primordial black hole abundances show to the primordial curvature power spectrum amplitude. In this paper, we investigate peaked power spectra and show the challenges associated with motivating populations of primordial black holes with standard model enhancements. The parametrisation of different power spectra plays an important role i

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Balaji, Shyam, Guillem Domènech, and Joseph Silk. "Induced gravitational waves from slow-roll inflation after an enhancing phase." Journal of Cosmology and Astroparticle Physics 2022, no. 09 (2022): 016. http://dx.doi.org/10.1088/1475-7516/2022/09/016.

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Abstract The primordial spectrum of fluctuations may present a large peak as a result of enhancing features during inflation. This may include, but is not limited to, bumps in the inflaton's potential, phases of ultra-slow-roll or turns in multi-field space. However, in many models, inflation does not end immediately after the enhancing feature and it is likely to continue with a second phase of slow-roll. We show that the resulting induced gravitational waves may probe the primordial spectrum from the second inflationary phase, even if its amplitude is too small to directly induce detectable

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LAI, XIAOYU, and RENXIN XU. "PRIMORDIAL STRANGE QUARK MATTER." International Journal of Modern Physics E 20, supp01 (2011): 158–66. http://dx.doi.org/10.1142/s0218301311040207.

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Strange quark nuggets (SQNs) could be the relics of the cosmological QCD phase transition, and they could very likely be the candidate of cold dark matter if survived the cooling of the later Universe, although the formation and evolution of these SQNs depend on the physical state of the hot QGP (quark-gluon plasma) phase and the state of cold quark matter. We reconsider the possibility of SQNs as cold dark matter, and discuss the astrophysical consequences of primordial SQNs in the early and present universe. In the early Universe, the formation of black holes inside primordial halos could be

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LIU LIAO. "PRIMORDIAL BLACK HOLE FORMATION IN INFLATIONARY PHASE." Acta Physica Sinica 35, no. 3 (1986): 375. http://dx.doi.org/10.7498/aps.35.375.

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Banerjee, Indra Kumar, and Ujjal Kumar Dey. "Probing the origin of primordial black holes through novel gravitational wave spectrum." Journal of Cosmology and Astroparticle Physics 2023, no. 07 (2023): 024. http://dx.doi.org/10.1088/1475-7516/2023/07/024.

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Abstract In this article we investigate the cumulative stochastic gravitational wave spectra as a tool to gain insight on the creation mechanism of primordial black holes. We consider gravitational waves from the production mechanism of primordial black holes and from the gravitational interactions of those primordial black holes among themselves and other astrophysical black holes. We specifically focus on asynchronous bubble nucleation during a first order phase transition as the creation mechanism. We have used two benchmark phase transitions through which the primordial black holes and the

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ENQVIST, KARI. "PRIMORDIAL MAGNETIC FIELDS." International Journal of Modern Physics D 07, no. 03 (1998): 331–49. http://dx.doi.org/10.1142/s0218271898000243.

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The explanation of the observed galactic magnetic fields may require the existence of a primordial magnetic field. Such a field may arise during the early cosmological phase transitions, or because of other particle physics related phenomena in the very early universe reviewed here. The turbulent evolution of the initial, randomly fluctuating microscopic field to a large-scale macroscopic field can be described in terms of a shell model, which provides an approximation to the complete magnetohydrodynamics. The results indicate that there is an inverse cascade of magnetic energy whereby the coh

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Dissertations / Theses on the topic "Primordial phase"

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Lilley, Matthew James. "Cosmological phase transitions and primordial magnetic fields." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621001.

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Cresswell, Bevan. "Inflationary cosmology, phase transitions and primordial power spectra." Thesis, University of Canterbury. Physics and Astronomy, 2004. http://hdl.handle.net/10092/5578.

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We present the results of research into inflationary cosmology. This consists firstly of a basic overview of the inflationary scenario, including the currently accepted model of inflation as being driven by a weakly interacting scalar field with a slowly varying effective potential energy function. We then consider the theory of density perturbations, their quantum origins in the inflaton scalar field, and evolution in a rapidly expanding universe. This all acts as background material for the research carried out, which involves the generation of density perturbations by a non-standard effecti

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Niksa, Peter [Verfasser], and Günter [Akademischer Betreuer] Sigl. "Signatures of Primordial MagneticFields from Phase Transitions / Peter Niksa ; Betreuer: Günter Sigl." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2019. http://d-nb.info/120211315X/34.

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Dimopoulos, K. "Astrophysical consequences of phase transitions in the early universe : primordial magnetic fields and superconducting cosmic strings." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598542.

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A new mechanism for the evolution of primordial magnetic fields is described and analysed. The field evolution is followed from the time of its creation until the epoch of structure and galaxy formation. The mechanism takes into account the turbulent behaviour of the early universe plasma. Of crucial importance are the plasma opacity and conductivity which inhibit the field evolution through Alfven wave propagation and Thomson scattering effects. A number of other related issues such as the case of an electro-weak plasma are also considered. For demonstrational reasons the mechanism is applied

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Толчинский, Ю. А. "Модель топохімічної реакції перетворення твердих реагентів у рідину". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/12605.

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Bizid, Imen. "Prominent microblog users prediction during crisis events : using phase-aware and temporal modeling of users behavior." Thesis, La Rochelle, 2016. http://www.theses.fr/2016LAROS026/document.

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Durant les situations de crise, telles que les catastrophes, le besoin de recherche d’informations (RI) pertinentes partagées dans les microblogs en temps réel est inévitable. Cependant, le grand volume et la variété des flux d’informations partagées en temps réel dans de telles situations compliquent cette tâche. Contrairement aux approches existantes de RI basées sur l’analyse du contenu, nous proposons de nous attaquer à ce problème en nous basant sur les approches centrées utilisateurs tout en levant un certain nombre de verrous méthodologiques et technologiques inhérents : 1) à la collect

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Martineau, Killian. "Quelques aspects de cosmologie et de physique des trous noirs en gravitation quantique à boucles Detailed investigation of the duration of inflation in loop quantum cosmology for a Bianchi I universe with different inflaton potentials and initial conditions Some clarifications on the duration of inflation in loop quantum cosmology A first step towards the inflationary trans-Planckian problem treatment in loop quantum cosmology Scalar spectra of primordial perturbations in loop quantum cosmology Phenomenology of quantum reduced loop gravity in the isotropic cosmological sector Primordial Power Spectra from an Emergent Universe: Basic Results and Clarifications Fast radio bursts and the stochastic lifetime of black holes in quantum gravity Quantum fields in the background spacetime of a polymeric loop black hole Quasinormal modes of black holes in a toy-model for cumulative quantum gravity Seeing through the cosmological bounce: Footprints of the contracting phase and luminosity distance in bouncing models Dark matter as Planck relics without too exotic hypotheses A Status Report on the Phenomenology of Black Holes in Loop Quantum Gravity: Evaporation, Tunneling to White Holes, Dark Matter and Gravitational Waves." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAY044.

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Cantonnée à la physique mathématique depuis des décennies, la gravitation quantique entre désormais dans le giron de la science expérimentale. Suivant cette mouvance nous considérons dans cette thèse trois cadres d’application de la gravitation quantique à boucles (LQG) : le système Univers, les trous noirs et les astroparticules. Le troisième n’est qu’esquissé tandis que les deux premiers sont présentés plus en détails.Le secteur cosmologique étant l’un des domaines les plus prometteurs pour tester et contraindre des théories de gravité quantique, le développement de différents modèles tentan

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Lebouteiller, Vianney. "Abondances chimiques dans le gaz neutre des régions à flambée de formation d'étoiles." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2005. http://tel.archives-ouvertes.fr/tel-00448226.

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Le gaz neutre dans les galaxies commence seulement à révéler ses secrets. FUSE permet depuis peu de sonder la phase atomique diffuse vers les régions Hii extragalactiques, sièges d'une intense formation d'étoiles. La méthode fait appel à l'analyse du profil des raies d'absorption d'espèces métalliques, telles que Ni, Oi, Si ii, Pii, Ar i ou encore Fe ii, afin de calculer leurs quantités, et d'estimer les abondances des éléments (c'est-à-dire rapportées à la quantité d'hydrogène). Les objets parmi les plus intéressants sont les galaxies bleues compactes. Peu évoluées chimiquement, elles offrent

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Forbes, Michael McNeil. "Primordial galactic magnetic fields from the QCD phase transition." Thesis, 2001. http://hdl.handle.net/2429/11535.

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In this thesis I describe in detail a mechanism which we proposed to generate large-scale primordial magnetic fields with correlation lengths of 100 kpc today. Domain walls with QCD scale internal structure form, coalesce and attain Hubble scale correlations. These domain walls subsequently align nucleon spins. Due to strong CP violation, nucleons in these walls have anomalous electric and magnetic dipole moments and the walls are ferromagnetic. This induces electromagnetic fields with Hubble size correlations. The same CP violation also induces a maximal helicity (Chern-Simons) correla

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Guedes, Guilherme Luís de Sousa Fialho. "Gravitational wave background produced by a network of cosmic strings generated during a primordial inflationary phase." Master's thesis, 2018. https://hdl.handle.net/10216/118673.

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Books on the topic "Primordial phase"

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Deruelle, Nathalie, and Jean-Philippe Uzan. Inflationary models of the primordial universe. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0060.

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This chapter addresses the problem of fine-tuning the initial conditions of the previous chapter’s hot Big Bang model, so that the universe has the observed properties, as well as the problem of the origin of large-scale structure. It shows that these problems are related to each other, and can be solved by assuming a period of accelerated expansion in the earliest history of the universe. Since the 1980s, the general acceptance of this idea of a primordial inflationary phase can be considered as the third phase in the history of the development of relativistic cosmology. The chapter first out

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Busemann, Henner. Primordial noble gases in "Phase Q" in carbonaceous and ordinary chondrites studied by closed system etching. 1998.

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Maggiore, Michele. Stochastic backgrounds of cosmological origin. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198570899.003.0013.

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Characteristic frequency of relic GWs. Production mechanisms of GWs in the early universe: preheating, phase transitions, cosmic strings, alternatives to inflation. Bounds on primordial GW backgrounds: nucleosynthesis bound, bounds from CMB, observational limits at interferometers.

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Deruelle, Nathalie, and Jean-Philippe Uzan. The Lambda-CDM model of the hot Big Bang. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0059.

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This chapter introduces the Lambda-CDM (cold dark matter) model. In 1948, under the impetus of George Gamow, Robert Hermann, Ralph Alpher, and Hans Bethe in particular, relativistic cosmology entered the second phase of its history. In this phase, physical processes, in particular, nuclear and atomic processes, are taken into account. This provides two observational tests of the model: primordial nucleosynthesis, which explains the origin of light nuclei, and the existence of the cosmic microwave background, and it establishes the fact that the universe has a thermal history. Study of the larg

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Maggiore, Michele. Gravitational Waves. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198570899.001.0001.

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A comprehensive and detailed account of the physics of gravitational waves and their role in astrophysics and cosmology. The part on astrophysical sources of gravitational waves includes chapters on GWs from supernovae, neutron stars (neutron star normal modes, CFS instability, r-modes), black-hole perturbation theory (Regge-Wheeler and Zerilli equations, Teukoslky equation for rotating BHs, quasi-normal modes) coalescing compact binaries (effective one-body formalism, numerical relativity), discovery of gravitational waves at the advanced LIGO interferometers (discoveries of GW150914, GW15122

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Rapoport-Albert, Ada. Women and the Messianic Heresy of Sabbatai Zevi, 1666 - 1816. Liverpool University Press, 2015. http://dx.doi.org/10.3828/liverpool/9781906764807.001.0001.

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Women are conspicuously absent from the Jewish mystical tradition. The chance survival of scant evidence suggests that, at various times and places, individual Jewish women did pursue the path of mystical piety or prophetic spirituality, but it appears that they were generally censured, and efforts were made to suppress their activities. This contrasts sharply with the fully acknowledged prominence of women in the mystical traditions of both Christianity and Islam. It is against this background that the mystical messianic movement centred on the personality of Sabbatai Zevi (1626–1676) stands

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Book chapters on the topic "Primordial phase"

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Schramm, David N. "Late-Time Cosmological Phase Transitions." In Primordial Nucleosynthesis and Evolution of Early Universe. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3410-1_31.

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Kapusta, Joseph I. "Primordial Black Holes and Hot Matter." In Phase Transitions in the Early Universe: Theory and Observations. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0997-3_21.

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Boyanovsky, D., H. J. Vega, and M. Simionato. "Primordial magnetic fields from cosmological phase transitions." In The Early Universe and the Cosmic Microwave Background: Theory and Observations. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-007-1058-0_5.

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Bergerhoff, Bastian, and Christof Wetterich. "Electroweak Phase Transition in the Early Universe?" In Current Topics in Astrofundamental Physics: Primordial Cosmology. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5046-0_6.

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Hogan, Craig J. "The Quark-Hadron Phase Transition and Primordial Nucleosynthesis." In Nearly Normal Galaxies. Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4612-4762-3_43.

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Jedamzik, Karsten. "Primordial Black Hole Formation During Cosmic Phase Transitions." In Springer Series in Astrophysics and Cosmology. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-8887-3_5.

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Kajino, T., and K. Sumiyoshi. "Could Cosmic QCD Phase Transition Produce Strange Quark Matter Which Survives until the Present Time?" In Primordial Nucleosynthesis and Evolution of Early Universe. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3410-1_14.

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Stock, Reinhard. "Relativistic Nucleus-Nucleus Collisions and the QCD Matter Phase Diagram." In Particle Physics Reference Library. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38207-0_7.

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AbstractThis review will be concerned with our knowledge of extended matter under the governance of strong interaction, in short: QCD matter. Strictly speaking, the hadrons are representing the first layer of extended QCD architecture. In fact we encounter the characteristic phenomena of confinement as distances grow to the scale of 1 fm (i.e. hadron size): loss of the chiral symmetry property of the elementary QCD Lagrangian via non-perturbative generation of “massive” quark and gluon condensates, that replace the bare QCD vacuum. However, given such first experiences of transition from short

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Carr, B. J. "Primordial Black Holes as a Probe of the Early Universe and a Varying Gravitational Constant." In Phase Transitions in the Early Universe: Theory and Observations. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0997-3_20.

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Kleinknecht, Konrad, and Ulrich Uwer. "Symmetry Violations and Quark Flavour Physics." In Particle Physics Reference Library. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38207-0_9.

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AbstractOne of the surprising facts in our present understanding of the development of the Universe is the complete absence of “primordial” antimatter from the Big Bang about 13.7 billion years ago. The detection of charged cosmic-ray particles by magnetic spectrometers borne by balloons, satellites, and the space shuttle has shown no evidence for such primordial (high-energy) antibaryons; nor has the search for gamma rays from antimatter–matter annihilation yielded any such observation. In the early phases of the expanding Universe, a hot (1032 K) and dense plasma of quarks, antiquarks, lepto

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Conference papers on the topic "Primordial phase"

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Petkov, V. B., E. V. Bugaev, and P. A. Klimai. "Multimessenger search for evaporating primordial black holes." In SN 1987A, Quark Phase Transition in Compact Objects and Multimessenger Astronomy. Институт ядерных исследования Российской академии наук, 2018. http://dx.doi.org/10.26119/sao.2020.1.52331.

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IGNATIUS, J., and DOMINIK J. SCHWARZ. "QCD PHASE TRANSITION AND PRIMORDIAL DENSITY PERTURBATIONS." In Proceedings of the Fourth International Workshop on Particle Physics and the Early Universe. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812799678_0026.

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VITENTI, SANDRO D. P., and NELSON PINTO-NETO. "PRIMORDIAL POWER SPECTRUM FROM A CONTRACTING PRE-BOUNCE PHASE." In Proceedings of the MG12 Meeting on General Relativity. WORLD SCIENTIFIC, 2012. http://dx.doi.org/10.1142/9789814374552_0235.

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Boyanovsky, D. "Primordial Magnetic Fields from Out of Equilibrium Cosmological Phase Transitions." In MAGNETIC FIELDS IN THE UNIVERSE: From Laboratory and Stars to Primordial Structures. AIP, 2005. http://dx.doi.org/10.1063/1.2077205.

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Wang, Jin. "Primordial magnetic field and density fluctuation from early universe phase transition." In After the first three minutes. AIP, 1991. http://dx.doi.org/10.1063/1.40397.

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Pasechnik, Roman, António P. Morais, and Thibault Vieu. "Multi-peaked signatures of primordial gravitational waves from multi-step electroweak phase transition." In Proceedings of the MG15 Meeting on General Relativity. WORLD SCIENTIFIC, 2022. http://dx.doi.org/10.1142/9789811258251_0229.

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Pasechnik, Roman, António P. Morais, and Thibault Vieu. "Multi-peaked signatures of primordial gravitational waves from multi-step electroweak phase transition." In European Physical Society Conference on High Energy Physics. Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.364.0054.

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Mitichkin, N., Konstantin Postnov, and I. Chekh. "Primordial intermediate-mass binary black holes in space laser interferometers." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.034.

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Primordial black holes (PBHs) with log-normal mass distributions reaching obtained $\sim 10^4$–$10^5$ solar masses may form following the quantum chromodynamic (QCD) phase transition in the early Universe, potentially due to modified Affleck–Dine baryogenesis. The expected frequency of detection of binary PBHs with intermediate masses using the TianQin space laser interferometer has been calculated based on the model of binary PBH formation and the assumed parameters of the log-normal distribution of primordial black holes. The obtained results are consistent with the LIGO-Virgo-KAGRA (LVK) da

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Romero-Rodríguez, Alba. "Implications for first-order cosmological phase transitions and the formation of primordial black holes from the third LIGO-Virgo observing run." In The European Physical Society Conference on High Energy Physics. Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.398.0113.

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Kornienko, Yuri. "Lyon-Type Integral Forms of Wall Friction, Heat- and Mass Transfer Closure Relationships for Non-Equilibrium Two-Phase Flows: Generalization for Annular and Rod Cluster Geometries." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66044.

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The main goal of this paper is to describe new approach to constructing generalized closure relationships for pipe, annular and sub-channel transfer coefficients for wall friction, heat and mass transfer. The novelty of this approach is that it takes into account not only axial and transversal parameter distributions, but also an azimuthal substance transfer effects. These constitutive relations, which are primordial in the description of single- and two-phase one-dimensional (1D) flow models, can be derived from the initial 3D drift flux formulation. The approach is based on the Reynolds flow

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