Recent content by Black Integra

sorry for the question, I have found my fault.

Hello people, I'm trying to plot probability distributions from the given potential numerically. These are the results (particle coming from the right) https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/s720x720/546478_516459578368236_1799346634_n.jpg What I want to know is why does...

So higgs boson can be in a tachyonic mode. Really thanks for the answer! :)

I know that Maxican-Hat potential is for tachyonic particle, says V(\phi)=-\frac{\lambda}{2}|\phi|^2 + \frac{g}{4!}|\phi|^4 But why does Higgs' potential take the same form of this?? Even though higgs boson is not a tachyon?? Tell me if my question is not clear. Thanks in advance for the answer.

Thanks I get them all now :)

I don't understand. κT^{μν}=G^{μν} is the Einstein field equation, isn't it? Or you are trying to say that the definition E = K+V can't be used in General relativity? I'm new to GR. I forget this point. Thanks for an enlightenment.

Oh, I understand the second equation, Thank you :) but I doubt about the first one hmm How does \sqrt{-g}R come up in the equation? what is the physical meaning of this expression? Answer your questions, - E is a total energy (Hamiltonian) , so I can split it into K+V. And p...

I want to prove that Euler Lagrange equation and Einstein Field equation (and Geodesic equation) are the same thing so I made this calculation. First, I modified Energy-momentum Tensor (talking about 2 dimension; space+time) : T_{\mu\nu}=\begin{pmatrix} \nabla E& \dot{E}\\ \nabla p &...

thx, that's clear :)

That's the point. I use 1-2GM/r = 1-2gr because I calculate in case where g=9.8 and r is around the Earth's radius (not small, is it?) Oh. I have never heard something like this before, it's new for me. What's the name of the other way, other than kinematic equation? What is the other...

I can't see why we can assume that \sigma^{-1} = 1+2gr, they're not quitely equal.(at least at the Earth's surface) But i think i can apporximate σ to be -2gr because 1 is very small comparing with -2gr. But I still can't find a way to prove this. Please, any can help me?

Yes, I want to make sure that geodesics of a particle moving in curved space time is the same thing of projectile trajectories. I start from assuming that 1-\frac{2GM}{r}\approx1-2gr and then calculate the schwarzschild metric in this form \Sigma_{\mu\nu}=\begin{bmatrix}\sigma & 0\\ 0 &...

Please, anyone tell me how to proof this equation: {R^\rho}_{\sigma\mu\nu} = \partial_\mu\Gamma^\rho_{\nu\sigma} - \partial_\nu\Gamma^\rho_{\mu\sigma} + \Gamma^\rho_{\mu\lambda}\Gamma^\lambda_{\nu\sigma} - \Gamma^\rho_{\nu\lambda}\Gamma^\lambda_{\mu\sigma} Given a definition...

I am a high school student and planning to study in physics-> Quantum -> QFT//Standard model. Physics career in my country, Thailand, is very unexpected because of its very low salary;5,000-10,000 US dollars per years. While in US, it's up to 100,000 dollars. I don't really mean to specify on...

Thanks for that answer :) but let me ask another question. If we consider an electron as a wave packet moving through space hitting at the step potential, theoretically, electron with low energy could sink into the potential and then jump back to the free space, or, also, be reflected back at...