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astronomy

The Physics of Fine-Tuning

Strings, Inflation, and Alternatives

In the third part of their discussion, Dave Sloan and Robert Brandenberger explain the relationship between string theory and inflationary models. Can inflation arise from particle physics, or do we need to look for alternative models?
The Physics of Fine-Tuning

Inflation Predicts

In the second part of their discussion, Dave Sloan and Robert Brandenberger tell us what inflation predicts and whether inflation itself seems fine-tuned. This discussion was conducted at the University of Oxford on March 14, 2017.
The Physics of Fine-Tuning

Evidence For Inflation

In the first part of their discussion, Dave Sloan and Robert Brandenberger go over our evidence for inflationary theories and discuss how inflationary models improve on the hot big bang.
The Physics of Fine-Tuning

Panel on Inflation

Professor Joe Silk talks with Professor Robert Brandenberger, Professor Jerome Martin, and Dr. Dave Sloan about the current state of research and controversies surrounding inflation.
The Physics of Fine-Tuning

Does Inflationary Cosmology Solve Fine-Tuning Problems?

Professor Robert Brandenberger (McGill) argues that inflationary models still face considerable challenges.
The Physics of Fine-Tuning

Inflationary Attractors

Dr David Sloan (Oxford) discusses the for inflation to occur given typical initial conditions. He argues that, on the right understanding of the background dynamics of the universe, inflationary conditions dominate.
The Physics of Fine-Tuning

Inflation After Planck

Professor Jerome Martin (Institut d’Astrophysique de Paris) explains the current state of evidence for inflationary models.
Journey of a Molecular Detective; David Sherratt

Redder is better! Exploring the universe with the successor to Hubble

Rebecca Bowler, University of Oxford give a talk about the successor to the Hubble telescope - The James Webb Space Telescope - which will detect infrared radiation.
Journey of a Molecular Detective; David Sherratt

On the trail of the most energetic particles in the universe

Rafael Alves Batista, University of Oxford, gives a talk about cosmic rays.
The Physics of Fine-Tuning

The Quantum and Cosmological Scales

How do we combine our theory of the very small with our theory of the largest scales of the universe? In the second part of their discussion, Jim Hartle and Bernard Carr hash out the connections between cosmology and quantum mechanics.
The Physics of Fine-Tuning

What Fine Tunings Are There?

Is the universe fine-tuned for life? In the first part of their discussion, Bernard Carr and Jim Hartle discuss how physical theories might contain unexplained assumptions that are necessary for the existence of life.
The Physics of Fine-Tuning

Dark Matter, Fine-Tuned

What surprising features of our theories cry out for explanation? Rocky Kolb and Rafael Alves Batista consider features of our theories that look unlikely or unnatural, and what our chances are for building a unified theory that explains them.
The Physics of Fine-Tuning

Why Now?

We’re at a particularly interesting time in the evolution of the universe. Rafael Alves Batista and Rocky Kolb chat about the interesting features of our time, and why we should--or should not--expect to be living now.
The Physics of Fine-Tuning

Dark Matter Particles

What sort of things could dark matter be, and how would we tell which it is? Rafael Alves Batista and Rocky Kolb review the main candidate dark matter particles, and consider our chances for telling which one is out there.
The Physics of Fine-Tuning

The Future of Dark Matter

In the third part of their discussion, Celine Boehm and Justin Read mull over what we can learn from dark matter. Will understanding dark matter lead us to a small change in the standard model, or a large one?
The Physics of Fine-Tuning

How Does Dark Matter Act?

In the second part of their discussion, Celine Boehm and Justin Read talk about how dark matter acts, both on large scales, at early times, and in small galaxies much nearer to us.
The Physics of Fine-Tuning

How Do We Find Dark Matter?

In the first part of their discussion, Justin Read and Celine Boehm go over our evidence for dark matter and consider the possible particles that could make it up.
The Physics of Fine-Tuning

Dark Matter(s) Discussion

Celine Boehm, Rocky Kolb, and Justin Read discuss fine-tuning in dark matter models, how we judge astrophysical parameters to be fine-tuned, how we get evidence for dark matter, supersymmetry, and our prospects for finding the dark matter particle.
The Physics of Fine-Tuning

The Level of Fine-Tuning it Takes to Make a Dark Matter Model

Dr. Celine Boehm (Durham) discusses the possible dark matter particles and the constraints--theoretical and experimental--on their parameter space.
The Physics of Fine-Tuning

The Decade of the Wimp

Dr. Rocky Kolb (Chicago) discusses the theoretical reasons to expect dark matter to be a Weakly Interacting Massive Particle (WIMP), and the prospects for finding one.

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