Tagged Questions
5
votes
1answer
254 views
In what limit does string theory reproduce general relativity?
In quantum mechanical systems which have classical counterparts, we can typically recover classical mechanics by letting $\hbar \rightarrow 0$. Is recovering Einstein's field equations (conceptually) ...
6
votes
1answer
179 views
Gravity duals to Navier Stokes and interpretation of non linear contributions
I have been reading the paper The Incompressible Non-Relativistic Navier-Stokes Equation from Gravity. In it they state,
"An instability, if it occurs, must necessarily break a symmetry ...
...
1
vote
0answers
68 views
Good introductory books on AdS/CFT correspondence [duplicate]
Possible Duplicate:
Introduction to AdS/CFT
Since my question in a similar topic was deleted, I'll ask away and hope ppl won't come here telling me: this was already asked! :\
I have a ...
0
votes
1answer
102 views
Relation between Higgs boson and force of gravitation
I don't know and I can't handle it. I am so much curious about the recent discoveries in science. European Space Agency and NASA are doing great work. Hats up to these institutions. My nights are ...
2
votes
1answer
408 views
Is anti-gravity possible in theoretical physics?
Is anti-gravity http://en.wikipedia.org/wiki/Anti-gravity possible in string theory?
I have read some articles about scientists making assumptions about the existence of anti-gravity, but is it ...
0
votes
3answers
249 views
Laws of gravity for a universe that only consists of two objects?
So, we know that when two objects of normal matter get away from each other, the gravitational pull they feel from each other, decreases.
I wanted to see how that would work. And in my ...
5
votes
0answers
150 views
Why Brown York stress tensor == dual field theory's energy momentum tensor?
From the AdS/CFT dictionary, how to argue that the Brown York stress tensor for a gravity
system near the boundary is exactly the same as the energy momentum tensor of the dual field theory?
In the ...
2
votes
1answer
258 views
Why are there Gravitons among the modes of oscillation in String Theory?
Why are gravitons present among the modes of oscillation of the 'strings' in String Theory?
7
votes
3answers
217 views
Is the “Great Attractor” an indicator of the “Multiverse”?
I have heard a bit about the Great Attractor (the gravitational anomaly that seems to be "sweeping" our universe in one direction). Someone (and forgive me, I do not recall the specifics) has ...
2
votes
1answer
341 views
What is the mathematical nature of space time quantization in string theory/super string theory?
I don't know much about string theory, apart from it being a theory of everything which brings QM, QED and nuclear forces and gravity under one single roof. I am curious to know from a mathematical ...
7
votes
1answer
607 views
String theory and trace anomaly in semiclassical gravity?
what does string theory have to say about the trace anomaly in the expectation value of the stress energy tensor of massless quantum fields on a curved background and its interpretation as the ...
