Edward Kolb
University of Chicago, Astronomy and Astrophysics, Faculty Member
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
In a large class of extra-dimensional models, a scalar degree of freedom known as the radion is long-lived, or even stable, on cosmological scales. In this paper we investigate the impact of radionactivity on the evolution of the... more
In a large class of extra-dimensional models, a scalar degree of freedom known as the radion is long-lived, or even stable, on cosmological scales. In this paper we investigate the impact of radionactivity on the evolution of the universe. We demonstrate that whether the radion overcloses the universe, constitutes the dark matter, is the inflaton, the curvaton, or does not
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
... probes, solution corresponds to a m&811 diHerence between neu luch as COBE and gravitational lensing measurements, trino mus eigenstates ... about lIew experiments, .uch as the Sudbury Neu smallness ofthe neutrino m&8ll-many... more
... probes, solution corresponds to a m&811 diHerence between neu luch as COBE and gravitational lensing measurements, trino mus eigenstates ... about lIew experiments, .uch as the Sudbury Neu smallness ofthe neutrino m&8ll-many orders of magnitude trillo Observatory (SNO ...
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Leon Max Lederman was a towering figure in the world of elementary particle physics in the second half of the 20th century. His experiments shaped our understanding of the world of particle physics. Included in the long list of his... more
Leon Max Lederman was a towering figure in the world of elementary particle physics in the second half of the 20th century. His experiments shaped our understanding of the world of particle physics. Included in the long list of his accolades was the 1988 Nobel Prize in Physics, which he shared with Melvin Schwartz and Jack Steinberger for the discovery that the muon neutrino is distinct from the electron neutrino. Among his many science leadership roles, he served for a decade as Director of Fermi National Accelerator Laboratory. Lederman was a spokesperson and champion for science and one of the most visible physicists of his generation. In his remarkable career Lederman journeyed from his youth in the Bronx, NY, to the directorship of Fermilab in Batavia, IL, to become an international proponent for physics beyond any one institution.
Research Interests:
Research Interests:
The deep connections between the very big and the very small have changed the way we think about the Universe and transformed cosmology. We will discuss the three pillars of the consensus cosmology -- dark matter, dark energy and... more
The deep connections between the very big and the very small have changed the way we think about the Universe and transformed cosmology. We will discuss the three pillars of the consensus cosmology -- dark matter, dark energy and inflation -- and their connections to fundamental physics and speculate about "all that".
Research Interests:
Research Interests:
Baryogenesis occurring during the thermalization stage at the end of extended inflation is considered. In extended inflation, the Universe passes through a first-order phase transition via bubble nucleation; inflation comes to an end when... more
Baryogenesis occurring during the thermalization stage at the end of extended inflation is considered. In extended inflation, the Universe passes through a first-order phase transition via bubble nucleation; inflation comes to an end when bubbles collide and their collisions convert energy stored in the bubble walls into particles. This naturally provides conditions well out of thermal equilibrium in which baryon number violating processes may proceed; the amount of baryon asymmetry which may be produced this way is estimated. The avoidance of a monopole or domain wall problem can also be ensured and isothermal density perturbations may arise as a remnant of spatial variation in the baryon asymmetry.
Research Interests:
Research Interests:
ABSTRACT The dynamics of first-order cosmological phase transitions is critically examined. In particular, criteria to estimate the strength of the transition are introduced. It is shown that for sufficiently weak transitions, thermal... more
ABSTRACT The dynamics of first-order cosmological phase transitions is critically examined. In particular, criteria to estimate the strength of the transition are introduced. It is shown that for sufficiently weak transitions, thermal fluctuations away from the symmetric phase can efficiently populate the asymmetric phase at the critical temperature, leading to a mixing of the phases and to a different mechanism for the completion of the transition. These criteria are applied to the standard model electroweak phase transition.
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests: Field Theory, Physics, Quantum Physics, Particle Physics, Quantum Mechanics, and 14 moreMedicine, Unified Field Theory, Asymmetry, Physical, Primordial Black Hole, Mathematical Model, Grand Unified Theory, Inflation Cosmology, Invariance Principle, Baryogenesis, Elementary Particles, Baryon Asymmetry, baryon number, and Direct Product
Research Interests:
Research Interests:
Research Interests:
Description/Abstract Decaying-particle scenarios for galaxy formation are subject to constraints from limits on the anisotropy of the microwave-background radiation. In this paper we obtain limits on the properties of decaying cold dark... more
Description/Abstract Decaying-particle scenarios for galaxy formation are subject to constraints from limits on the anisotropy of the microwave-background radiation. In this paper we obtain limits on the properties of decaying cold dark matter.
Research Interests: Field Theory, Physics, Quantum Physics, Dark Matter, Quantum Mechanics, and 11 moreGalaxy Formation and Evolution, Medicine, Anisotropy, Cosmic Microwave Background, Electromagnetic Radiation, Physical sciences, Physical, Mathematical Model, Cold Dark Matter, Background Radiation, and Elementary Particles
Research Interests:
Research Interests: Field Theory, Physics, Quantum Physics, Cosmic Microwave Background, Statistical Significance, and 9 morePhysical, Taylor Series, Large Scale Structure, Background Radiation, Cosmic Microwave Background Radiation, Astronomy and Astrophysics, Perturbation Theory, Taylor expansion series, and inflaton
Research Interests:
Research Interests: Field Theory, Physics, Quantum Physics, Particle Physics, Quantum Mechanics, and 15 moreMedicine, Inflation, Domain wall, Asymmetry, Physical, Mathematical Model, Grand Unified Theory, Spatial Variation, Inflation Cosmology, Invariance Principle, Baryogenesis, Perturbation Theory, Elementary Particles, Baryon Asymmetry, and baryon number
Research Interests:
Research Interests:
Research Interests:
Research Interests: Field Theory, Physics, Theoretical Physics, Quantum Physics, Dark Matter, and 13 moreMedicine, Cosmic Microwave Background, Gravitational Wave Detectors, Phenomenology of Particle Physics, Physical, Mathematical Model, Phase Transformation, Spectrum, Large Scale, Functional Form, Elementary Particles, inflaton, and gravitational wave
The phase transition associated with the standard electroweak model is very weakly first order. The weakness of the transition means that around the critical temperature the finite-temperature Higgs mass is much less than the critical... more
The phase transition associated with the standard electroweak model is very weakly first order. The weakness of the transition means that around the critical temperature the finite-temperature Higgs mass is much less than the critical temperature. This leads to infrared problems in the calculation of the parameters of the potential. Therefore, theories of electroweak baryogenesis, which depend on the details of the transition, must be calculated with care.