Image for Dark Energy

Dark Energy

Speaker:  Prof. Nick Evans (Southampton University)

The biggest problem in physics right now is Dark Energy. Astronomers need this peculiar energy content of the Universe to explain the observed expansion of the Universe but no one knows what this material out in empty space is.

Equally particle physicists try to understand what the Universe is made of and recent experiments at the Large Hadron Collider have discovered the Higgs boson. This particle is responsible for the masses of the other fundamental particles and is a form of Dark Energy. The problem is that particle physicists gets the answer for the observed value completely wrong when they try to compute it.

We fundamentally struggle to link the quantum world of short distance physics to any computation of gravity because we know very little about gravity at sub-atomic scales. I'll try to give a gentle introduction to all of this physics in bite size chunks. I'll finish off by talking about the wild speculation on what might  live in the hole in our understanding from brane worlds to multiverses.

Venue information

       * Wheelchair access
       * Car park
       * Coffee and Tea from 19:00

Image: ©NASA  Fornax Extreme Deep Field plus composites of X-ray and optical images of some of the standard candles used to study dark energy.

 

Organised By
IOP South West Branch
Date/Time
17 Sep 2019 19:00 to 21:00
Location
Sarum College
Salisbury
SP1 2EE
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