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Results tagged with special-relativity
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user 9412
The special theory of relativity describes the motion and dynamics of objects moving at significant fractions of the speed of light.
0
votes
1
answer
621
views
Four momentum of a photon squared, trouble with combining wave-particle duality and energy-f...
Since $p^2=E^2-\vec{p}^2=m^2$ and
$E=h\nu=\frac{hc}{\lambda}$ and
$|\vec{p}|=\frac{h}{\lambda}$
we have that
$p^2=\frac{h^2c^2}{\lambda^2}-\frac{h^2}{\lambda ^2}$
If I go to Planck-units ($c= …
- 1,152
2
votes
1
answer
116
views
Is it best to look at light as a particle when trying to understand special relativity?
So my course about special relativity explains time dilation using a moving train, where one sends up (i.e. perpendicular to the direction of movement) a light pulse which gets reflected etc. (a simil …
- 1,152
4
votes
4
answers
10k
views
Why/how does an electron emit a photon when decelerating?
I've had two special relativity courses so far but none really gave me a clear description of the process.
- 1,152
1
vote
1
answer
79
views
What is meant by "the Klein-Gordon equation is unsymmetrical between the temporal and spatia... [closed]
The Klein-Gordon equation explicitly reads
$\left( \frac{\partial ^2}{c^2\partial t^2} - \nabla ^2+\left( \frac{m_0 c}{\hbar}\right)^2\right) \psi =0$
Now I read here on page 8 that:
What is meant by …
- 1,152