2,546 reputation
936
bio website edwardfhughes.wordpress.com
location London, UK
age 24
visits member for 2 years, 8 months
seen Apr 15 at 13:46

I'm a PhD student at Queen Mary, University of London. I'm interested in modern approaches to scattering amplitudes, in particular twistor methods.


Apr
7
awarded  Good Question
Jan
17
awarded  Popular Question
Jan
16
reviewed Approve Variation of the kinetic quark term of the QCD Lagrangian under gauge transformation
Jan
14
comment Does coordinate time have physical meaning?
Do let me know if you have any questions on this, btw!
Jan
14
answered Does coordinate time have physical meaning?
Jan
12
comment Can gravitational waves be directly detected
http://en.wikipedia.org/wiki/Gravitational-wave_observatory
Jan
8
revised Second Rank Tensors
Corrected false statement from the end of the answer.
Jan
8
answered String Theory: Why should(n't) the string snap?
Jan
8
awarded  Notable Question
Jan
8
comment Why is a tensor times its dual a derivative?
You are right that $\tilde F$ is the Hodge dual. As far as I remember the wedge product of a tensor and it's Hodge dual can be written as $F^{\mu\nu}F_{\mu\nu}$ once you've dealt with all the Levi-Civita symbols. The explicit calculation is easy to check (and should be in any good textbook on gauge theory).
Jan
7
answered How do we know that gravity is a fundamental force, rather than an emergent one?
Jan
7
comment Why is a tensor times its dual a derivative?
Yes - my answer applies for a general gauge theory, so both QED and QCD are covered.
Jan
7
answered Why is a tensor times its dual a derivative?
Jan
6
comment Are there new physics scenarios that predict low lying hadrons?
Sorry misread your question (didn't see the b in LHCb), so I now see my answer isn't appropriate! Hope someone with expertise in GeV scale physics has an answer - I'd be interested to see it.
Jan
1
comment Length contraction due to gravity
If you show us what you've tried so far, we'll be much better positioned to help you where you are stuck!
Jan
1
comment Advice on Major Selection
Maybe migrate to Academia.SE?
Jan
1
revised Advice on Major Selection
improved formatting, question structure, retagged as soft
Jan
1
answered Advice on Major Selection
Jan
1
reviewed Approve Faraday rotation effect in circularly polarized waves?
Dec
31
reviewed Approve Why can't a single photon produce an electron-positron pair?