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From the early days of intellectual curiosity to the victory of experimental confirmation, a noted physicist illustrates the theory of the Inflationary Universe and offers a firsthand account of his paradigm-breaking discovery of how the universe began.
Modern cosmology is a quickly developing ?eld of research. New technical devices and tools supply the community with new experimental data measured with high accuracy. The self-consistent explanation of these data needs t- oretical models that are based on hypothetical predictions of particle theory. In their turn, such predictions imply cosmology for their probe. Speci?c st- ies of the cosmological consequences of particle theory, linking them to their observable signatures, are actual. This boiling kettle of theoretical research and experimental efforts produces ideas that will be preserved for following generations. The aim of this book is to acquaint the reader with some of these ideas, - fering nontrivial ways to probe the physical basis of modern cosmology. An extensive review of the newest ideas in modern cosmology, e. g. , related with the development of the M-brane theory, lies beyond the scope of our book, which is aimed at providing a ?rmly established system of probes for these ideas, linking their predictions to their possible experimental test. We use the framework of in?ationary paradigm to reveal the phenomena that can shed light on the physical origin of the observed Universe, of its matter content and large-scale structure. The crucial role of quantum ?uctuations in creation of our Universe and in possible features, re?ecting cosmological impact of microphysics, is discussed. These features are shown to be accessible to - perimental test in the near future.
This classic Big Bang text neatly describes what happened after the bang. Yet, until recently, particle physicists and cosmologists were stuck on many questions that the Big Bang Theory still couldn't answer, primarily: If matter can neither be created nor destroyed, how could so much matter arise from nothing at all? Alan Guth's Inflationary Universe Theory answers these vexing questions. When NASA's Cosmic Background Explorer satellite measured the non-uniformities of the cosmic background radiation for the first time in 1992, the patterns agreed exquisitely with the theory's predictions.
Surveys the latest developments in the field of physics, in such areas as quantum theory, low-temperature physics, astrophysics, relativity, and quarks
A popular account of the properties and significance of black holes.
Observability and Scientific Realism It is commonly thought that the birth of modern natural science was made possible by an intellectual shift from a mainly abstract and specuJative conception of the world to a carefully elaborated image based on observations. There is some grain of truth in this claim, but this grain depends very much on what one takes observation to be. In the philosophy of science of our century, observation has been practically equated with sense perception. This is understandable if we think of the attitude of radical empiricism that inspired Ernst Mach and the philosophers of the Vienna Circle, who powerfully influenced our century's philosophy of science. However, this was not the atti tude of the f ounders of modern science: Galileo, f or example, expressed in a f amous passage of the Assayer the conviction that perceptual features of the world are merely subjective, and are produced in the 'anima!' by the motion and impacts of unobservable particles that are endowed uniquely with mathematically expressible properties, and which are therefore the real features of the world. Moreover, on other occasions, when defending the Copernican theory, he explicitly remarked that in admitting that the Sun is static and the Earth turns on its own axis, 'reason must do violence to the sense' , and that it is thanks to this violence that one can know the tme constitution of the universe.
This book accompanies another book by the same authors, "Introduction to the Theory of the Early Universe: Hot Big Bang Theory" and presents the theory of the evolution of density perturbations and relic gravity waves, theory of cosmological inflation and post-inflationary reheating. Written in a pedagogical style, the main chapters give a detailed account of the established theory, with derivation of formulas. Being self-contained, it is a useful textbook for advanced undergraduate students and graduate students. Essential materials from General Relativity, theory of Gaussian random fields and quantum field theory are collected in the appendices. The more advanced topics are approached similarly in a pedagogical way. These parts may serve as a detailed introduction to current research. Available as a set with "Introduction to the Theory of the Early Universe: Hot Big Bang Theory." Sample Chapter(s) Chapter 5: Primordial Perturbations in Real Universe (272k) Chapter 15: Preheating after Inflation (382k) Contents: Jeans Instability in Newtonian GravityCosmological Perturbations in General Relativity. Equations of Linearized TheoryEvolution of Vector and Tensor PerturbationsScalar Perturbations: Single-Component FluidsPrimordial Perturbations in Real UniverseScalar Perturbations Before RecombinationStructure FormationBeyond Ideal Fluid ApproximationTemperature of Cosmic Microwave BackgroundCMB PolarizationDrawbacks of the Hot Big Bang Theory. Inflation as Possible Way OutInflation in Slow Roll RegimeGeneration of Cosmological Perturbations at InflationFurther Aspects of Inflationary TheoryPreheating After InflationBouncing UniverseColor Pages Readership: Cosmologists, advanced undergraduate and graduate students.

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