|
Willy Fischler
Willy Fischler (born 1949 in Antwerp, Belgium) is a theoretical physicist. He is the Jane and Roland Blumberg Centennial Professor of Physics at the University of Texas at Austin, where he is affiliated with the Weinberg theory group. He is also a certified Flight Paramedic ( FP-C) and was a Licensed Paramedic with Marble Falls Area EMS and a volunteer EMT with the Westlake Fire Department. His contributions to physics include: * Early computation of the force between heavy quarks. * The DFSZ (Dine-Fischler-Srednicki-Zhitnisky) model, as a solution to the strong CP problem. * The cosmological effects of the invisible axion (with Michael Dine) and its role as a candidate for dark matter. * Pioneering work (with Michael Dine and Mark Srednicki) on the use of supersymmetry to solve outstanding problems in the standard model of particle physics. * The first formulation of what became known as the "moduli problem in cosmology" (with G.D. Coughlan, Edward Kolb, Stuart Raby an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FP-C
The Flight paramedic Certification (FP-C) is an advanced certification that indicates an individual has attained the designation of Certified Flight Paramedic. The FP-C certification exam is administered by thInternational Board of Specialty Certification (IBSC), a not-for-profit organization responsible for the administration and development of specialty certification exams for critical care professionals.The FP-C exam was the first specialty paramedic certification offered by the Board for Critical Care Transport Paramedic Certification in 2000. This certification is designed for experienced paramedics who have demonstrated advanced knowledge of critical care medicine. The FP-C, CCP-C, and/or Critical Care Emergency Medical Transport Program (CCEMTP) certifications are often a requirement to work as a flight paramedic in the United States. The FP-C does not have an associated course and does not endorse any specific course in order to remain impartial and maintain neutrality. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gauge–gravity Duality
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other. On distance scales larger than the string scale, a string looks just like an ordinary particle, with its mass, charge, and other properties determined by the vibrational state of the string. In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries the gravitational force. Thus, string theory is a theory of quantum gravity. String theory is a broad and varied subject that attempts to address a number of deep questions of fundamental physics. String theory has contributed a number of advances to mathematical physics, which have been applied to a variety of problems in black hole physics, early universe cosmology, nuclear physics, and condens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmology
Cosmology () is a branch of physics and metaphysics dealing with the nature of the universe. The term ''cosmology'' was first used in English in 1656 in Thomas Blount (lexicographer), Thomas Blount's ''Glossographia'', and in 1731 taken up in Latin by German philosophy, German philosopher Christian Wolff (philosopher), Christian Wolff, in ''Cosmologia Generalis''. Religious cosmology, Religious or mythological cosmology is a body of beliefs based on Mythology, mythological, Religion, religious, and Esotericism, esoteric literature and traditions of Cosmogony, creation myths and eschatology. In the science of astronomy it is concerned with the study of the chronology of the universe. Physical cosmology is the study of the observable universe's origin, its large-scale structures and dynamics, and the ultimate fate of the universe, including the laws of science that govern these areas. It is investigated by scientists, such as astronomers and physicists, as well as Philosophy, ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holographic Entropy Bound
The holographic principle is an axiom in string theories and a supposed property of quantum gravity that states that the description of a volume of space can be thought of as encoded on a lower-dimensional boundary to the region — such as a light-like boundary like a gravitational horizon. First proposed by Gerard 't Hooft, it was given a precise string-theory interpretation by Leonard Susskind, who combined his ideas with previous ones of 't Hooft and Charles Thorn. Leonard Susskind said, “The three-dimensional world of ordinary experience––the universe filled with galaxies, stars, planets, houses, boulders, and people––is a hologram, an image of reality coded on a distant two-dimensional surface." As pointed out by Raphael Bousso, Thorn observed in 1978 that string theory admits a lower-dimensional description in which gravity emerges from it in what would now be called a holographic way. The prime example of holography is the AdS/CFT correspondence. The hol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonard Susskind
Leonard Susskind (; born June 16, 1940)his 60th birthday was celebrated with a special symposium at Stanford University.in Geoffrey West's introduction, he gives Suskind's current age as 74 and says his birthday was recent. is an American physicist, who is a professor of theoretical physics at Stanford University, and founding director of the Stanford Institute for Theoretical Physics. His research interests include string theory, quantum field theory, quantum statistical mechanics and quantum cosmology. He is a member of the US National Academy of Sciences, and the American Academy of Arts and Sciences, an associate member of the faculty of Canada's Perimeter Institute for Theoretical Physics, and a distinguished professor of the Korea Institute for Advanced Study. Susskind is widely regarded as one of the fathers of string theory. He was the first to give a precise string-theoretic interpretation of the holographic principle in 1995 and the first to introduce the idea of the stri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
String Theory
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other. On distance scales larger than the string scale, a string looks just like an ordinary particle, with its mass, charge, and other properties determined by the vibrational state of the string. In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries the gravitational force. Thus, string theory is a theory of quantum gravity. String theory is a broad and varied subject that attempts to address a number of deep questions of fundamental physics. String theory has contributed a number of advances to mathematical physics, which have been applied to a variety of problems in black hole physics, early universe cosmology, nuclear physics, and conde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graham Ross (physicist)
Graham Garland Ross (1944 – 31 October 2021) was a Scottish theoretical physicist who was the Emeritus Professor of Physics at the University of Oxford and Emeritus Fellow of Wadham College. Career Ross was known for constructing models of fundamental interactions and verifying them by experimentation. With others, while at the European Organization for Nuclear Research (CERN) in Geneva, he predicted that gluon radiation would generate collimated jets of particles in electron–positron annihilation, which subsequently established the existence of the gluon. He made contributions to the foundation of the perturbative treatment of quantum chromodynamics, applying it to high-energy processes and developing connections with the low-energy quark model. He developed predictions of unified models of the fundamental forces for polarised lepton scattering, for sin2''θ''W, for proton decay, and for inflationary cosmology. He discovered that in supersymmetric models, the electrowea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Kolb
Edward W. Kolb, known as Rocky Kolb, (born October 2, 1951) is a cosmologist and a professor at the University of Chicago as well as the dean of Physical Sciences. He has worked on many aspects of the Big Bang cosmology, including baryogenesis, nucleosynthesis and dark matter. He is author, with Michael Turner, of the popular textbook ''The Early Universe'' (Addison-Wesley, 1990). Additionally, alongside his co-author Michael Turner, Kolb was awarded the 2010 Dannie Heineman Prize for Astrophysics. Doctor Kolb is married to Adrienne Kolb, a historian of science The history of science covers the development of science from ancient times to the present. It encompasses all three major branches of science: natural, social, and formal. Science's earliest roots can be traced to Ancient Egypt and Mesopo ..., and has three children. References External links * American cosmologists Living people University of Chicago faculty Winners of the Dannie Heineman Prize for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Model
The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetism, electromagnetic, weak interaction, weak and strong interactions - excluding gravity) in the universe and classifying all known elementary particles. It was developed in stages throughout the latter half of the 20th century, through the work of many scientists worldwide, with the current formulation being finalized in the mid-1970s upon experimental confirmation of the existence of quarks. Since then, proof of the top quark (1995), the tau neutrino (2000), and the Higgs boson (2012) have added further credence to the Standard Model. In addition, the Standard Model has predicted various properties of weak neutral currents and the W and Z bosons with great accuracy. Although the Standard Model is believed to be theoretically self-consistent and has demonstrated huge successes in providing experimental predictions, it leaves some physics beyond the standard m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supersymmetry
In a supersymmetric theory the equations for force and the equations for matter are identical. In theoretical and mathematical physics, any theory with this property has the principle of supersymmetry (SUSY). Dozens of supersymmetric theories exist. Supersymmetry is a spacetime symmetry between two basic classes of particles: bosons, which have an integer-valued spin and follow Bose–Einstein statistics, and fermions, which have a half-integer-valued spin and follow Fermi–Dirac statistics. In supersymmetry, each particle from one class would have an associated particle in the other, known as its superpartner, the spin of which differs by a half-integer. For example, if the electron exists in a supersymmetric theory, then there would be a particle called a ''"selectron"'' (superpartner electron), a bosonic partner of the electron. In the simplest supersymmetry theories, with perfectly " unbroken" supersymmetry, each pair of superpartners would share the same mass and intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Dine
Michael Dine (born 12 August 1953, Cincinnati, Ohio) is an American theoretical physicist, specializing in elementary particle physics, supersymmetry, string theory, and physics beyond the Standard Model. Education and career Dine received in 1974 a bachelor's degree from Johns Hopkins University and in 1978 a Ph.D. under Thomas Appelquist from Yale University with thesis ''Interactions of Heavy Quarks in Quantum Chromodynamics''. He did research at SLAC and was for a number of years at the Institute for Advanced Study and the ''Henry Semat'' Professor at City College of New York. He is currently a professor at Santa Cruz Institute for Particle Physics (SCIPP) of the University of California, Santa Cruz. Dine was a Guggenheim Fellow for the academic year 2006–2007 and Sloan Fellow in 1986. He is a fellow of American Physical Society and in 2010 he was elected a fellow of the American Academy of Arts and Sciences. He is a recipient of the 2018 Sakurai Prize. He was elected a memb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
