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/sci/ - Science & Math

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6035039 No.6035039 [Reply] [Original]

Fuck. Looks like we have to rethink everything again.

https://www.simonsfoundation.org/quanta/20130917-a-jewel-at-the-heart-of-quantum-physics/?utm_source=feedly

>The amplituhedron is a theoretical geometric object in infinite dimensional space that dramatically simplifies calculations of particle interactions and challenges the notion that space and time are fundamental components of reality.

>When the volume of the amplituhedron is calculated in N=4 supersymmetric Yang-Mills theory, it describes the scattering patterns of subatomic particles. This suggests the possibility that the nature of the universe, both classical relativistic spacetime and quantum mechanics, can be described with simple geometry. Calculations can be done without quantum mechanic's properties of locality and unitarity, which could help investigate quantum gravity theory.
It also vastly simplifies the calculations of particle interactions, such that interactions which would require hundreds of Feynman diagrams and thousands of pages of calculations can be computed with a single equation.
Since the N=4 supersymmetric Yang-Mills theory is a toy theory that does not describe the real world, the relevance of this theory to the real world is currently unknown, but it provides promising directions for research into theories about the real world.

>> No.6035287

why is no-one posting about this
it's been doing my head in for 24 hours

>> No.6035292

>>6035287
Wow relax mon, it's just a neat model. It's not the first one to come around.

You read the original paper yet?

>> No.6035293

>>6034309

>> No.6035305

>>6035292
yeah
how slick is it tho? fucking amazing imo
yeah i know it's just fancy calculus style 'visualisation' but w/e. twistor is useful now anyway

>> No.6035313

>>6035305
I didn't finish it yet.
Can I actually use it for my "everyday" solid state physics calculation, like scattering rates for electrons?

>> No.6035338

Does anyone have a link to the original paper?

>> No.6035343

>>6035338
http://arxiv.org/pdf/1212.5605v1.pdf

>> No.6035349

>>6035343
thanks m9

>> No.6035421

Awesome.

So it all comes back to geometry in the end, could this lead us to the holy grail of science? A unified theory of everything if it is in fact proven to be correct?

>> No.6035433

>>6035421

Fucking shapes, how do they work?

>> No.6035449

>>6035421
Shiiit, we ain't tryin to do no geometry! We tryin a play some GAMES.

>> No.6035497

I dont understand, what is this N=4 stuff?

>> No.6035560
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6035560

>>6035449

>> No.6037067

>>6035039
>just came to /sci/ after reading article about this. I might start a new thread, but I figured I'd go in existing one first...

Q: Can anyone one here describe or link me to a description of the geometry of this and the geometry's contribution to the other systems?

I do NOT know much about physics explicitly. I am however somewhat comfortable with geometry, and only need a vague notion of the types of computations the geometric properties are simplifying and how. Don't need/want a physics lecture if possible. It would be really awesome if anyone could help me out who knows about this kind of stuff.

>I know a little about varieties, babby commutative algebra (so, some topology implicitly), finite groups and basic infinite groups like the 'classical groups', for geometry background. I read layman Weyl so I know basics about physics 50 years ago or whatever.

>> No.6037139

>>6035039
What the FUCK are they on about?

>> No.6037181

We are that much closer to creating a perfect simulation of the universe, and that much closer to the theory that our universe is just a simulation being run in another universe

>> No.6037185

So it means that gravity and space are just as much a human construct as time?

>> No.6037229

>>6037185
You don't need this new theory to tell you that.

>> No.6037254

>virtual particles are never observed in nature
What is hawking radiation