Recent content by tavi_boada

Yes it would by the principle of superposition.

Crazy Moron, I think you are a perfect replica of a Greek philosopher. If you had been born in Aristotles time we would probably be talking about you instead of him. Maybe your ideas are interesting but they are incomprehensible as a whole. Let me give you a few tips so that you can put...

That is a good question. I think linear algebra already existed at the end of the 19th century (therefore, before QM). The most important theorems had already been put forth by Jacobi, Calley etc. I think Heisenberg periodicaly asked Jacobi for help

Idea: Tell them that the centrifugal force is only a term you get in Newtons second law when you use a rotating reference frame. When you switch to a stationary reference frame there is no need for a centrifugal force.

Maybe we don't mean the same thing with "relativistic". If you try to quantify the relativistic hamiltonian for a free particle you get the Klein-Gordon equation. This equation has many problems, as you probably know. You cannot define a probability current and the usual interpretation of the...

Ha ha! He didn't tell us it wasn't his. Thank god symmetries in real life are approximate!

All you really need to know to do QM is linear algebra and calculus (basic QM that is)

Every human activity has its own language. If you want to talk about soccer with people who regularly discuss soccer you have to know the language of soccer. In this case the only differences are a few words, like off-side, goal, corner kick, etc. Physics has it's own language as well, and a...

I think if there are no fields in the vicinity of the electron it these corrections are unimportant. I think the electron self-energy is only relevant when it's interacting with something else

Hello, In my university there is a bit of a fuss about Quantum Information (QI). A few professors work in this field and there have been some conferences where they try to explain to the rest what is QI and so on. I think it is safe to say I know a bit of quantum mechanics, not at a...

My teacher gave us the following example: Imagine you have a donkey with two buckets of food. One at his right and one at his left. You have specular symmetry and you are happy, because you're a physicist and you like symmetries. After a while the animal gets hungry and eats one of the...

I recommend Arfken. I am sill undergrad and find it is lacking in many aspects. There is very little differential geometry. I think there is no one must have book. Anyway, most books on physics have an intro with the math relevant to the subject. For example, Wald has an extensive math chapter...

You're right, it is difficult. how can someone who has trouble with quantizing the Dirac field (like most of us at first), go directly to and understand ghosts in the path integral quantization? The only problem with Peskin, in my opinion, is that it leaves too many calculations to the...

There is the necessity of the field view point to have a meaningful self consistent relativistic theory

Question 2: Ground state has energy what ever you want. Only energy shifts are measurable quantities. Question 11: I don't understand what you are trying to say. It looks like non-Relativistic QM + creation of virtual particles (!?). Bad combination. The only thing I can understand is...