A New Generation of Cosmic Superstring Simulations
A New Generation of Cosmic Superstring Simulations

Author: José Ricardo C. C. C. Correira

Publisher: Springer Nature

Published: 2023-01-13

Total Pages: 202

ISBN-13: 3031202295

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Topological defects are an expected consequence of phase transitions in the early Universe. As such these objects, if detected, provide unequivocal evidence of physics beyond the Standard Model. This means they are prime targets for new observational facilities. However, our understanding of defects is heavily bottlenecked by computational limitations. In this book, the author explores the use of accelerator hardware to alleviate this problem, presenting the world’s first (multiple-)GPU defect simulations. Such simulations can evolve a network of line-like cosmic strings at an unprecedented resolution. Then these are used to obtain the most accurate to date calibrations of semi-analytical modelling and to show the impact of accuracy on observational consequences of strings. Lastly, a modified version of this application is used to study interconnected networks of strings in greater detail than ever before. This book benefits any student or researcher who wishes to learn about field theory simulations in the early Universe and about supercomputing with multiple accelerators.

String Cosmology
String Cosmology

Author: Johanna Erdmenger

Publisher: John Wiley & Sons

Published: 2009-07-14

Total Pages: 329

ISBN-13: 352762807X

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This relatively new field applies equations from string theory to solve the questions of early cosmology, since the standard picture of our universe emerging from a 'big bang' leaves many fundamental issues unanswered. String theory, on the other hand, postulates that fundamental ingredients of nature are not zero-dimensional point particles but tiny one-dimensional filaments. This theory harmoniously unites quantum mechanics and general relativity -- the previously known laws of the small and the large -- which are otherwise incompatible. The field of string cosmology has matured considerably over the past few years, attracting many new adherents. Due to the multidisciplinary nature of the topic, it is difficult for practitioners to be conversant with all the many different aspects. This book thus fills a huge gap by bringing together all the different strains of research into one single volume. The resulting collection of selected articles presents the latest, ongoing results from renowned experts currently working in the field. From the contents: * Introduction to Cosmology and String Theory * String Inflation: Brane Inflation and Inflation from Moduli * Cosmic Superstrings * The CMB as a Possible Probe of String Theory * String Gas Cosmology * Gauge-gravity Duality and String Cosmology * Heterotic M-theory and C A welcome addition to the literature for graduate students, students in astronomy, astronomers, mathematicians and theoretical physicists.

Solar Modeling
Solar Modeling

Author: Akif Baha Balantekin

Publisher: World Scientific

Published: 1995-10-12

Total Pages: 274

ISBN-13: 9814548359

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This volume contains the proceedings of a workshop on Solar Modeling held at the Institute for Nuclear Theory, University of Washington, Seattle during the Spring of 1994.This workshop was part of a program which concentrated on the nuclear, particle, and astrophysics of the solar neutrino problem, with particular emphasis on the experimental goals and opportunities.The workshop covered the physics of the standard and alternative solar models, the present status of the solar neutrino problem, the existing uncertainties in the nuclear and atomic physics (opacity) of the standard solar model, and constraints from helioseismology. Among the topics discussed were: the evolution of the rotating sun; solar model independent neutrino observables; the role of convective overshoot and diffusion; and turbulence in the solar interior and the role of g-modes. It was unique in bringing together nuclear, particle, atomic physicists and astrophysicists working on this problem.

Energy Research Abstracts
Energy Research Abstracts

Author:

Publisher:

Published: 1993

Total Pages: 1052

ISBN-13:

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Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

Scientific Natural Philosophy
Scientific Natural Philosophy

Author: E. E. Escultura

Publisher: Bentham Science Publishers

Published: 2011

Total Pages: 183

ISBN-13: 1608051781

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Scientific Natural Philosophy explains the nature and content of scientific natural philosophy, particularly qualitative modeling, and updates scientific methodology by providing details of the mathematics involved. The book presents a total view of our universe, from the fractal superstring to its destiny as black holes back in to dark matter, and to the timeless and boundless 'Universe' where our universe is a local super, super galaxy. It stresses the various levels of complementarity between qualitative and quantitative modeling where the former solves and answers questions the latter could not and duality between quantum and macro gravity. It highlights new information from the Grand Unification Theory (GUT) missing in previous philosophical works such as the indestructible generalized nested fractal superstring, brain waves as common medium of the brain and gene for their functions. Moreover, it points to a new technological epoch brought about by the GUT based on utilization of dark matter towards elevating the quality of life. This comprehensive book provides an exciting perspective on this fascinating field to the reader.