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Tagged with quantum-chromodynamics quantum-mechanics
3
questions
16
votes
2
answers
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QCD and QED with unlimited computational power - how precise are they going to be?
My question is about quantum algorithms for QED (quantum electrodynamics) computations related to the fine structure constants. Such computations (as explained to me) amounts to computing Taylor-like ...
- 2,073
5
votes
1
answer
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If virtual particles have negative mass why do they contribute positive mass to atoms?
According to Lawrence Krauss, atoms containing in our body consists of merely 10% (if I remember correctly) of our total mass. The rest come from virtual particles popping in and out of existence from ...
- 197
5
votes
2
answers
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Valence sea quarks parton distribution functions
There's somethin from Thomson (Modern Particle Physics) that I am a little mythed by.
Section 8.4.3, eq. 8.3 is given as
$$
\frac{F^{\mathrm{en}}_2(x)}{F^{\mathrm{ep}}_2(x)}=\frac{4d_{V}(x)+u_{V}(x)+...
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