Recent content by kalish

If gravity is not the energy source in an hydroelectric dam, neither fusion is. Somehow you have to drop something into a well whether it's a gravity well or another field. So far the only energy source we know might be the big bang, with the creation of time itself. About hawking radiation, I...

so you want to destroy the Earth with a single proton? It's not true to say a momentum exceeding the momentum of the earth. Depending on the frame, your proton has or has not a momentum, as the earth. So in a frame where the Earth is at rest, any momentum is infinitely bigger than the momentum...

Maybe you should complete your formation with an easy to get diploma. I think you should also avoid saying you are schizo, it's not the kind of thing the society wants to hear, even if your psychiatrist encourages you to not be ashamed of it. I know people who lost a lot of abilities with...

Hi, first, I am a foreigner, so please forgive my bad english. That said, I first come from neither physics nor investment, I first studied art, and... well, it was kind of waist of time, then I moved to physics which I handled correctly until I graduated in theoretical physics, but i still feel...

Hello, I bring up this old topic cause I wanted to react/ask something about what negru said. It sounds very logic and rational and I could agree but I have objections and will provide an actual example this is not exactly true, or an example this is only unlikely, because it happened once...

Thank you very much, it worked! silly mistake.

Hello, I have a system of DE involving two variables depending on the parameter t. To solve it I need to specify x(0),y(0),x'(0),y'(0). I know how to solve it with NDSolve, (analytical solution doesn't work), and I want to make a list of different solutions with different initial conditions. I...

ok, thanks that's what i wanted to know, indeed at our epoch the higgs is just supposed to get it's vacuum expectation value, and an hypothetical symmetric vev when \mu^2 > 0 has never happened? I am sorry for the trouble, I am not a real retard, but I read everywhere the presentation talking...

Hello, do you have some source about that? I am sorry but I very doubt about your claim. The unbroken symetry imply \mu^2>0 since the derivative shows that the zero are for \phi = 0 or \phi^2 = -\frac{\mu^2}{4 \lambda}, it follows when \mu^2 < 0 , then \phi_0 = \pm \sqrt{-\frac{\mu^2}{4...

Ok so there has never been an unbroken phase in the universe? for example with \mu^2>0 I still quote the paper of sean carroll talking about the cosmological constant: I just want to know why do we believe this , and thus the dependence of \mu on T. I just can't find a clear paper about...

Hello, I am searching for information about the higgs mass before and after the symetry breaking. Does it depend on the temperature? I know other particles are not expected to have a mass before symetry breaking, but I suppose the higgs itself does. I don't find much informations about and I...

I think this is also mainstream cause I read it in other papers, but I didn't find a discussion about the cosmological implication. This is kind of weird, If the current cosmological constant is really tiny, then how a tiny constant less a big contribution can not be negative and affect the...

Hello, in the paper from sean carroll "the cosmological constant" we can read this: Does this variation of the cosmological constant after symetry breaking is considered as real and accepted in standard cosmology? I find very few talks about a varying cosmological constant, and it is about...

Thank you, I wonder if the word renormalization has always the same meaning. I mean in the paper you talk about it is the way I know it from QFT, and I don't understand what you mean by . I also read that only the non minimal coupling with a parameter equal to 1/6 was renormalizable, I don't...

Hello, I am searching for a text that talks about various non minimal coupling, why and how we introduced it. I know we can use it in inflation, modified gravity, or low energy quantum gravity, but I don't know how all these different topics lead to the same formalism, or almost for example with...