Recent content by EroticNirvana

ok ok, well let's take an example. Let's say we measure the z compenent of the spin of the electron. The remaining compenents (x, y) will be indeterminate (the reason is of course the quantum indeterminacy pertaining to non-commuting operators). Now, I then wonder. If, UNPERTURBED, will the...

how fast does the wave function "decollapse"? as you know the wave function (indeterminacy) may collapse due to a measurement. However, after a measurement it returns after a while to its initial state of indetermincy. (I don't know what to call this transition back to indetermincy; is there a...

ok, can´t find the edit button, but of course functions a, b, c, d in the last message depend on more than one variable (perhaps all q, x, y, z).

of course gauge invariance. The e-m exhibits U(1) gauge invariance. (but feel free to remind me about anything of this) A four potential looks like this: a(q) +b(x)i + c(y)j+ d(z)k I´m just too lazy to calculate them and have never really done it, but I need to know an example of a(q), b(x)...

Hi I need a good example of a four potential that yields a photon

the distinction in terms of string theory I'm just asking for an explanation of the distinction between electric current and flux in a string theoretical terminology. That's quite a difficult task, but that's what I'm asking for.

my response Come on. This system for quotations sux. I'm not going to learn it and I don't see what's wrong with the method that usenet group clients use! Simplicity is often a blessing. To your points. 1. I did never claim that string theory had experimental success. That was exactly...

Well, no, that term was not meant to refer to Gross. I talked about senile people also before. But I don't really know that much about Gross so I'm not saying either of him. At least not explicitly;) But of course he's not an amateur! He is in his criticism, however, teaming up with a host of...

that's because they're ignorant Yes; the the reason for that is that they don't have any real argument to pose. They are not blessed with a scientific insight. Modern science will appear ridiculous to anyone that does not understand the reasons why modern science looks like it does. You...

wrong;) Thx for a detailed and careful response. I apoligize that I don´t have the time to reciprocate:) * Well I guess you´re right. String theory, thus far, has only been able to account for the most salient features of string theory (or you know, I´m not going to get into any debate...

The use of the word "dangerous" maybe says everything about this dude. That sounds like a philopher speaking. Real scientists use a more objective language. It's always funny to hear people say that this or that cannot be proven. Give me a single proof that something cannot be proven...

well, they can relatively easily be explained if you consider the moment of inertia of a string and some simple relations. And of course, string theoretically, it can be explained, but that's really difficult. But even if the trajectories are explained one wonders about the relation i stated in...

OK the very origin of string theory is based on the observations of the regge trajectories pert. to hadrons. Funnily enough you get the relation that the ang. mom. is directly proporitional to the square of the energy (if i remember correctly) which would not be the case if we were dealing with...

sure Ok. But I'm studying string theory and I'm interersted in the connection between string theory and these concepts. Now that is a question that may be odd or awkward but that's the question I want an anwer to. So well, it may be tricky to override a person's intention with a question...

nonsense That's like saying, just because you do not know what a leg and what a table top is you cannot understand what a table is. Of course you can explain what a table is; you just explain the totality of the table. It so happens that I'm learning about string theory right now and I'm...