Well, I found this article(letter) in nature:
Which is a theoretical calculation to check if it has a liquid phase. They guess that it does not.
There is no proof people. To the people that keep using the 4-current to show charge invariance, you need to assume that rho*c transforms as a time component to get charge invariance and a working definition of 4-current. This is from the angle where you start with the classical form of...
Well, I was thinking about buying some graduate level QM and E&M texts and studying in the meantime. To be sure, I have gotten rusty. Some recommendations along these lines would be appreciated.
Hello all. I am wondering what my chances are of getting into grad school. I realize there are other posts on the topic, but everyone is in a different situation so I think this is warranted.
I have what the university calls a combined honors mathematics and physics BSc degree from the...
Ok, so I am wondering what an engineer really does on the job. How much of it is actual engineering, how much of it is paperwork, meetings, talking with clients, or whatever? I would appreciate it if only people that are working in engineering respond.
So, I'm refering specifically to the phase diagram of Superconducting cuprates. For example like the one here:
I'm not sure how exactly "hole doping" is defined
Can someone tell me what Doping away from half Filling means? I see it everywhere. Although I can't find referance to it in Kittel or Mermin, although I might not be looking hard enough. I have and idea of what it is. Half filling refers to the doping where the Brillouin Zone is half holes and...
So, i've noticed that when I freeze ice cubes these strange icicles appear on the top of the ice. I took a picture, included as an attachment.
Not really sure how something like this forms. Please no speculation.
So, i really havn't done anything with one forms....ive looked them up, but they dont really make any sence. Im not sure how this helps :cry:Is there a way to do this without 1 forms?....we havn't been taught those in class......so there should be a way to do the problem without that....
So ive been working on this problem. Im given the metric in Kruskal coordinates, so
And the path of a particle is
X=0 T=λ θ=π/2 Φ=0
And the path of the observer is
X=-1/2*T+1/2 θ=π/2 Φ=0
And im asked to find the 3...
4-velocity --> 4-acceleration?
Hey all, my first post here.
Now, Im trying to derive the 4-acceleration from the 4-velocity by explicitly calculating du/d(tau). So from Hartle we have
u=( gamma, gamma*v)
and v is the 3 velocity, taking c=1