PeroK's latest activity

You're right that the 4-momentum is covariant. But its only frame-invariant content is the norm ##p_\mu p^\mu = -m^2##, which is just...

They're not part of any state. They're part of the mathematical description of the field--more precisely, they are properties of the...

@Demystifier nailed it. Perhaps the simplest way to see why: energy and momentum are frame-dependent, so they can't be intrinsic to the...

@DavidMiranda if you are an undergraduate, are you not sitting your end of year exams now? I don't believe your story about your...

@DavidMiranda I have to say that I misunderstood you. I thought you had been doing some calculations (to understand things better or...

Do you refer to the Lorentz Ether Theory? All SR "paradoxes" are only apparently paradoxical but not really. Therefore, they are not...

I'd say, move on. Study physics, special relativity in particular, but don't limit yourself to it. Later, when you have a reasonable...

@Ibix linked a related paper in posting #2. It does already, what you claim in the OP. A general boost transformation in ##x##-direction...

In general, a mathematical framework has a large set of statements that are true in the framework. Usually, you can take some small...

There are multiple ways to arrive at SR, and not all of them directly put in the invariant speed of light as a postulate. So-called "one...

This is no paradox, it is standard experimental science. Well-considered and carefully-executed controls are critical to good...

Corollary: since ice forms asymmetrically inside the bottle, it also expands asymmetrically. As noted by @Jonathan Scott, when a plastic...

Sort of. Many Worlds still has the problem of explaining why we observe the particular Bell inequality violating correlations that we...

What have black holes to do with this thread?

PS quantum fields have the relativistic causal structure built in.