Recent content by M. next

Thank you for your replies. Vanadium, thanks to your polite and elegant replies, I will not be using this forum again.

No, I am not there yet and haven't checked if there's a phonebook on line. But what I am seeking is a universoty of a very good reputation. A university physicists here on physics forums have heard of.

What are some of the best universitues in Fullerton, CA if any for PhD? Some which are best at theoretical physics.

Hello, I was reading and trying to follow up with Pierre Ramond's "Field theory: A modern primer" and got stuck in his step to step jumping. Kindly, see attachment and note that Eq (1.2.6) = g_{ρσ}=g_{μ\upsilon}\Lambda^{μ}_{ρ}\Lambda^{\upsilon}_{σ}. My question is what do I need from tensor...

Why is it that Susskind in describing the holographic principle - why is it that he considers a quantized universe?

Thank you very much for putting this in a simple way!

Which sentence are you talking about? I guess the second one. If so, what does this one mean "Each local quantum field theory(with UV cut-off, in this case the grid) will give rise to an entropy that scales in that way." What UV cut off? "In that way"? What way?

I read a sentence that says if a spherical volume in placed in a quantized space then the maximum entropy of the system can be calculated and it after simple steps found to be: S~V where V is the volume of the spherical volume. "Then the author said: Each local quantum field theory(with UV...

Oh okay I see then it was an inspiration that came because all they wanted was related to entropy which is in turn related to information. Thanks :)

Thank you a lot for your reply. I now know why does it increase. You are saying if mass is added or if spin or charge is reduced. How was it known? If this is difficult to answer, then I ask why doesn't it decrease? What will happen if you took the other option IF THE AREA DECREASED what will...

Hawking said that the horizon area of a black hole never decreases and illustrated that in his Hawking Are Theorem: dA/dt ≥ 0 Does anyone know why is it like that. Why doesn't the area decrease?

These are two snapshots, one from the abstract and the other from the introduction.

Why did Verlinde in his paper suggest that information is a central concept in the emergence of gravity? I mean why information and not something else?

It carries sewage under pressure. Material hpvc. 60 cm pipe diameter, 4 m deep and 1.5 water table in slit clay soil. Considering pipe safety. Should we replace the material under the pipe. If so, how deep? Can we use the excavated material for fill? Thanks for your reply!

Problem: Excessive settlement I was considering adding new material under the pipe to avoid settlement. But I ran into another problem which has to do which the pipe's edges. How to avoid shears there in silt clay soil? pipe depth is 4m. Thanks