Basic assumptions made in the construction of cosmological models. However, the source of the great attractors attraction was thought to originate from a massive cluster of galaxies called. Cosmologist laura mersinihoughton claims black holes do. She was granted tenure in 2008 and was later promoted to full professor. She and hawking both agree that as a star collapses under its own gravity, it produces hawking radiation. Eleonora di valentino and laura mersinihoughtonrecent citations introduction to big bang nucleosynthesis and modern cosmology grant j. Pdf the arrow of time in a universe with a positive cosmological constant. Cosmic bubble and domain wall instabilities i iopscience. Weinberg,cosmology,weinberg,2008, but also on many other books and papers, which are cited throughout the text. This motivates us to use quantum cosmology in the study of. The concept of time has fascinated humanity throughout recorded history, and it remains one of the biggest mysteries in science and philosophy. Much of the dilemma over the last decades comes from the extraordinarily small probability that the universe started with the high energy big bang as. Illustrations on the large scale structure of the universe.
Domain wall cosmology and multiple accelerations arxiv. My prior email back in october 2017 below was as a result of reading your arxiv article referenced above with stephon alexander of brown. Laura mersini houghton nee mersini is an albanianamerican cosmologist and theoretical. The meanttoinspire books in this series are designed for scientifically literate nonspecialists who want to know the latest discoveries in theoretical physics and cosmology in a nontechnical language. Consequence of a comparison of numerical e folds for a non. Pdf the arrows of time download full pdf book download. From 2002 to 2003, mersini houghton had a postdoctoral fellowship at syracuse university.
Beyond the big bang download ebook pdf, epub, tuebl, mobi. An introduction to modern cosmology university of belgrade. Department of physics, carnegie mellon university, pittsburgh pa 152, usa. At the howthelightgetsin festival in may, cosmologist laura mersinihoughton released her groundbreaking research into black holes to the public for the first time. The work not only forces scientists to reimagine the fabric of spacetime, but also rethink the origins of the universe. Localization on the landscape and eternal inflation. Concave downward potentials have a negative curvature v mersini houghton nee mersini is an albanianamerican cosmologist and theoretical physicist, and professor at the university of north carolina at chapel hill. The pdf files are in handout format with three slides per sheet plus space for note taking.
Dark energy from the transplanckian physics laura mersinihoughton. However, in her new work, mersinihoughton shows that by giving off. The multiverse 2008 subscribe to podcast a debate in cosmology. Department of physics and astronomy, uncchapel hill. Time is clearly one of the fundamental building blocks of the universe and thus a deeper understanding of nature at a fundamental level also demands a. The 2015 planck data release has placed tight constraints on the class of in ationary models allowed. In the talk, mersini houghton presented groundbreaking new research that shows black holes may not exist. It would also vindicate string theory, our most promising understanding of how the universe works at its most fundamental level. If mersinihoughtons team is right, the giant void is the first experimental evidence for another universe. The dark flow was determined to be flowing in the direction of the centaurus and hydra constellations. A debate in cosmology fundamental theories of physics. Bars, itzhak, terning, john, nekoogar, farzad founding ed. Laura mersinihoughton is a professor of theoretical physics and cosmology at the university of north carolina. Predictions ofthe quantum landscape multiverse laura mersinihoughton1 1department of physics and astronomy, uncchapel hill, nc 27599, usa dated.
She gave a really nice talk about the development of modern cosmology. Standard cosmology cannot explain such a giant cosmic hole. Introduction to cosmology barbara ryden department of astronomy the ohio state university january, 2006. The really dark side of the universe, madrid june 2006 laura mersinihoughton unc chapel hill. Laura mersinihoughton at university of north carolina at chapel hill. Dark energy may probe string theory inspire inspire hep. However, in her new work, mersini houghton shows that by giving off this radiation, the star also sheds mass. Time is clearly one of the fundamental building blocks of the universe and thus a deeper understanding of nature at. This volume is intended to be useful for research purposes, but most chapters are also accessible to a more general audience of scientifically educated readers looking for deeper insights. Time after time big bang cosmology and the arrows of time. Mersinihoughton is a professor of cosmology and theoretical physics at the university of north carolinachapel hill.
The possibility that dark energy and dark matter are manifestations of the inhomogeneous geometry of our universe. Like its predecessor in the series, extra dimensions in space and time, this is an accessible, semitechnical discussion about different matters in theoretical physics by experts. A flat universe from high resolution maps of the cosmic microwave background. Editor, journal of cosmology and astroparticle physics 2010 editor, physics letters b. Department of physics and astronomy, uncchapel hill, nc, 275993255. The current best fit region favors concave downwards in ationary potentials, since they produce a suppressed tensor to scalar index ratio r. Holographic dark energy model with chaplygin gas inspire. Each lecture has an associated example exam question, with hints and answers.
Multiversal journeys theoretical physics made easy for. Mersinihoughton at uncchapel hill was recently featured in the bbchorizon documentary which universe are we in, where prof. Cosmic update by adams, buchert, and mersinihoughton. It is fair to say that the deepest mystery in our understanding of nature is the birth of our universe. Uses nontechnical language to address the latest theories on cosmology, yet includes technical appendices which add more depth to each chapter. Attempting to cover the study of the entire universe in a. Cosmology is the study of the universe, or cosmos, regarded as a whole.
In january 2004, mersini houghton accepted a position as assistant professor of theoretical physics and cosmology at university of north carolina. Laura mersini houghton damtp, university of cambridge, wilberforce rd. Traditionally, cosmology was taught, as it was to me, as the tail end of a general relativity course, with a derivation ofthe metric for an expanding universe and a few solutions. Laura mersini houghton unc chapel hill unsettled problems in cosmology conference t hooft 2019. The models turn out to be remarkably successful, but we need to ask how secure these foundations are. Pirsa perimeter institute recorded seminar archive. Mersinihoughton department of physics and astronomy, uncchapel hill, nc, 275993255, usa. Contents a new perspective on the classical static einstein. The arrows of time a debate in cosmology laura mersini. On the history of cosmological model building and the general architecture of cosmological modes. Philosophy of space and time is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time. Laura mersinihoughton nee mersini is an albanianamerican cosmologist and theoretical. Cosmology, editors laura mersinihoughton, and rudy vass, fundamental theories of physics, 172, springer verlag, berlin, federal republic of germany, 2012 3 a. Carolinas laura mersinihoughton shows that black holes.
Tilting the universe with the landscape multiverse. Laura mersinihoughton the origin of the universe youtube. Beyond the big bang presents a new cuttingedge theory from a pioneering scientist about the origins of our universe. Bumhoon lee, 1 1 1, wonwoo lee 2 2 2, siyoung nam 3 3 3, and chanyong park 4 4 4 15mm cquest, sogang university, seoul, korea 121742 5mm department of physics, sogang university, seoul, korea 121742 5mm we classify the cosmological behaviors of the domain wall under junctions between two. Professor laura mersinihoughton takes the reader through a brief. By merging two seemingly conflicting theories, laura mersinihoughton, a physics professor at uncchapel hill in the college of arts and sciences, has proven, mathematically, that black holes can never come into being in the first place. A new perspective on the classical static einstein cosmos. Observations in cosmology how the models really work. Illustrations of the large scale structure of the universe.
This involved a sunday times report about laura mersinihoughtons hard evidence for the multiverse, which she had found by analyzing the latest planck cmb data. Such a course fails to capture the flavour of modem cosmology. The theory of the origin of our universe from the landscape multiverse developed by prof. She plans to give a public talk about this at the hay festival on friday, and a talk at oxford is scheduled for. Public talks and media coverage laura mersinihoughton. Laura mersinihoughton, associate professor of theoretical physics and cosmology in the college of arts and sciences at uncchapel hill whose work on black holes spurred new discussion among physicists, initiated the conference to continue the conversation. Isbn 0470849096 acidfree paper isbn 047084910x pbk. The book also offers readers a comparison between the different outlooks of philosophy, physics and cosmology on the puzzle of time. But now mersinihoughton describes an entirely new scenario. Mersinihoughton, laura our universe in 202 doublings. June 9, 2014 particle creation leading to hawking radiation is produced by the changing gravitational. Institutions, university of north carolina at chapel hill doctoral advisor leonard parker.
December 22, 2016 the 2015 planck data release has placed tight constraints on the class of in. But now mersini houghton describes an entirely new scenario. Mathews et altesting predictions of the quantum landscape multiverse 2. The history of cosmological model building and the general architecture of cosmological models. The existence of several anomalies in the cosmic microwave background that she with. She is a proponent of the multiverse hypothesis and the author of a theory for the origin of the universe that holds that our universe is one of many selected by quantum gravitational dynamics of matter and energy. Since that time, i have had several occasions to read more from your unique perspective.
807 853 147 612 283 1051 1109 420 1103 988 1043 1287 628 1330 596 128 153 542 1312 1222 1069 629 844 1565 30 846 359 1248 1137 649 1308 171 499 1395 1409 1140 530 560 91