Recent content by loop quantum gravity

As the saying goes:"the Moon is not there, if nobody is looking..." :oldbiggrin:

fixed that, thanks!

How to prove the following claim? that: $$m=\lfloor \log_2 n \rfloor= \lfloor \lg n \rfloor$$ from $$n=2m+k−1$$ ? Obviously we have $$m=log_2(n−k+1)$$ . ##k## is the number of leaves. My question has arisen from the solution here: https://walkccc.me/CLRS/Chap06/6.1/ of 6.1-2. Thanks in...

what's the definition of ##k^\mu## here? is it momentum up to constant hbar or something else? maybe a wave number?

why is it notoriously wrong? I mean there are several SUSY theories and I think not all of them were bogged down by LHC, were they? On another matter I gave a look at BFSS paper on M theory being suggested as a matrix theory, I think they tried to incoporate to M theory, RMT. As someone who took...

Thanks for the reference if only I had the time to read it all. (I have quite a lot of books in maths and physics to be read; so it takes a lot of time).

Does M theory and its companion F theory tell us if gravity is emergent or not? I guess they would say that some sort of vibrating strings lead to gravity's emergence; no I don't have referneces at the top of my head right I just remember stuff, and granted my memory is not that strong.

Thanks for clearing matters out. Well, as for being emergent or not it depends if we have an experiment that shows bijectively that emerges from something else. I read some say from entropy; In my UG lab classes we never calculated entropy directly. If we somehow can change the direction of...

What does it even mean that it's not fundamental force; if we recall that gravity field is exactly as acceleration field (inertial mass=gravitational mass). For a full quantum theory of gravity you must have the graviton with spin 2; it makes you wonder if gravity makes masses to gravitate then...

There's a definition of a dual graph to another graph, here: https://en.wikipedia.org/wiki/Dual_graph Now QFT at least the perturbative one is plagued with Feynman graphs, so obviously one can ask a trivial does the dual of a specific Feynman graph have a physical significance or physical...

I am wondering how common is it for people from BSM to use this method to solve nonlinear pdes that arise in their work?

That's a weak solution. As you know with mathematical riddles one needs to practice quite a lot and then perhaps gain intuition for the game. I am not really good in playing in chess, but as I play in PS5 NHL and other games in the most difficult level eventually I'll find how to solve the...

Eventually both QP and GR are not the end of the story of physics. And we are bound to have a new theory that it's not QP and not GR, only at a suitable limits it behaves like them. I guess it would be called semiclassical gravity. One neads to synthsize methods from Condensed matter physics...

no, I understand it would be an enormous number and one needs to speedup the technology so that a computer would do the job (obviously), but evem then a human needs to check that there are no mistakes in the code. Eventually we'll solve chess game and we'll invent even harder games.... I wonder...

Can you explain why is it 100 factorial? I know it's hard to count all possible outcomes; but it's no impossible. :cool: