PDF-(READ)-An Infinity of Worlds: Cosmic Inflation and the Beginning of the Universe

What happened before the primordial fire of the Big Bang a theory about the ultimate origin of the universeIn the beginning was the Big Bang an unimaginably hot fire almost fourteen billion years ago in which the first elements were forged The physical theory of the hot nascent universethe Big Bangwas one of the most consequential developments in twentiethcentury science And yet it leaves many questions unanswered Why is the universe so big Why is it so old What is the origin of structure in the cosmos In An Infinity of Worlds physicist Will Kinney explains a more recent theory that may hold the answers to these questions and even explain the ultimate origins of the universe cosmic inflation before the primordial fire of the Big BangKinney argues that cosmic inflation is a transformational idea in cosmology changing our picture of the basic structure of the cosmos and raising unavoidable questions about what we mean by a scientific theory He explains that inflation is a remarkable unification of inner space and outer space in which the physics of the very large the cosmos meets the physics of the very small elementary particles and fields closing in a full circle at the first moment of time With quantum uncertainty its fundamental feature this new picture of cosmic origins introduces the possibility that the origin of the universe was of a quantum natureKinney considers the consequences of eternal cosmic inflation Can we come to terms with the possibility that our entire observable universe is one of infinitely many forever hidden from our view. Cosmology and Inflationary Theory. Chad A. . Middleton. Mesa . State . College. Physics Seminar. February 18, 2010. Cosmology. is the scientific study of the large scale properties of the Universe as a whole.. Jeffrey Hatef. Mentor: Dr. Alan . Kogut. Inflation Theory: How is the Universe so big?. The universe appears too big, inflation is a possible answer.. COBE and WMAP. COBE beginning in 1989 and WMAP in 2001 have mapped the sky in the microwave range.. . Misnomer. ! . . Expansion not explosion. No center or edges: . isotropic and homogeneous. . Redshift of galaxies and nuclei of galaxies with active black holes .  recession velocity. . Redshift: . & Large scale structure. Tarun Souradeep. I.U.C.A.A. .. Cosmology . IUCAA . VSP program. (. May 18-22, . 2012). Lec. . . 4:. Current frontiers. Mildly Perturbed universe at z=1100. Present universe at z=0. History and Present Status. . Motivated by . the book. :. Breakthrough Beyond the Edge of the World. Valery . Rubakov. Alexei . Starobinsky. Andrei . Linde. Vyacheslav. . Mukhanov. Vladimir . Lukash. It was apparently much flatter in the past:. Inflation!. For definiteness, pick . g. eff. =200 and . k. B. T. = 3. . 10. 15. . GeV. You should memorize this value to about 54 digits or so. How did it happen to be so close to 1?. Lecture . 11; . May . 21 2013. Previously… on astro-2. In an expanding universe the relationship between redshift and distance depends on the cosmological parameters (i.e. the geometry and expansion of the universe). Why?. History and Present Status. . Motivated by . the book. :. Breakthrough Beyond the Edge of the World. Valery . Rubakov. Alexei . Starobinsky. Andrei . Linde. Vyacheslav. . Mukhanov. Vladimir . Lukash. References:. COBE web site. WMAP web site. Web sites of Wayne Hu, Max Tegmark, Martin White,. Ned Wright and Yuki Takahashi. . R&L Problem 4.13. . Show that an observer . moving. with respect to a blackbody. Evidence for the Big Bang Theory. Learning Goal:. By the end of this lesson, you will be able to explain three pieces of evidence for the Big Bang Theory: . Cosmic Microwave Background Radiation. Redshift of galaxies. 2nd Millennium BCE. BC. . . Mesopotamian cosmology . has a flat,circular Earth enclosed in a cosmic Ocean. 12. th. century BCE. C. . Rigveda. has some cosmological hymns, most notably the Nasadiya Sukta. (Birth Of The Universe). Running the Expansion Backward. Temperature of the Universe from the Big Bang to the present (10. 10. years ~ 3 x 10. 17. seconds). A Scientific History of the Universe. The Big Bang Theory. Universe exist Things might have been in countless ways different So why is the Universe as it is These questions some believe may have causal answers Suppose first that the Universe has alway Broeck. , . Tjonnie. Li. Nikhef. : April 23, 2010. Horizon problem, flatness problem, missing exotic particles. Horizon. : largest distance over which influences can have travelled in order to reach an observer: visible Universe of this observer.