Are Lorentz Transformations Empirical Laws?

bon
Messages
547
Reaction score
0

Homework Statement



Are the Lorentz transformations empirical laws? If so, are they empirically testable?


Homework Equations





The Attempt at a Solution



I'm guessing they are. But how do you test the LT?
 
Physics news on Phys.org
bon said:

Homework Statement



Are the Lorentz transformations empirical laws? If so, are they empirically testable?


Homework Equations





The Attempt at a Solution



I'm guessing they are. But how do you test the LT?

The LT was originally formulated by an erroneous assumption (by an Irish physicist named Fitzgerald) which postulated an actual shrinking of an object as it passes by an observer at high velocity. The LT exactly agreed with the observations. However, Einstein formulated them based on the uniform motion of two observers relative to each other. They, along with all of Einstein's relativity theories, have withstood 100 years of verification.
 
Empirical law is a law that contains certain parameters that are unable to be determined by theory, but have to be measured from experiment and be used.
I don't see why LT should be such.

A lorentz transformation is being defined by the Ls that have:
[L]*[n][L]=[n] (n is the metric of minkowski and my notation is notation for matrices)

I guess that even group theory and symmetries bring the need of such transformations to exist.

So I guess it is very theoritical as it is, and of course they existed before relativity, or before finding application in physics in order to be "empirical" laws...
 
Hello everyone, I’m considering a point charge q that oscillates harmonically about the origin along the z-axis, e.g. $$z_{q}(t)= A\sin(wt)$$ In a strongly simplified / quasi-instantaneous approximation I ignore retardation and take the electric field at the position ##r=(x,y,z)## simply to be the “Coulomb field at the charge’s instantaneous position”: $$E(r,t)=\frac{q}{4\pi\varepsilon_{0}}\frac{r-r_{q}(t)}{||r-r_{q}(t)||^{3}}$$ with $$r_{q}(t)=(0,0,z_{q}(t))$$ (I’m aware this isn’t...
Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
Back
Top