Big Crunch or Big Rip?

[Max™]

I like the ideas of Supersymmetry, but I think it speaks to the difference in the state of the present universe compared to the period shortly after it unfolded, not an innate thing where we have families of Susy particles floating around us (just the dark matter, I think).

[AntonioLao]

In some sense, supersymmetry seems to imply broken symmetry, in particular, mass disparity.

[dipayankar]

Hi can anyone help me with more information (some website) on super symetry?

[Profpat]

Hi can anyone help me with more information (some website) on super symetry?

Hi Dipayankar;

You might want to start at Wiki, they'll give you other websites for reference:

( http://en.wikipedia.org/wiki/Supersymmetry )

Best,

Pat

[dipayankar]

Thanks a lot Prof. I had forgoten about Wiki...

Hi Dipayankar;

You might want to start at Wiki, they'll give you other websites for reference:

( http://en.wikipedia.org/wiki/Supersymmetry )

Best,

Pat

[AntonioLao]

Supersymmetry is the idea that for every fermion there is a symmetric partner boson, vice versa. Personally, I don't subscribe to this idea.

[dipayankar]

Which means that the number of fermions and bosons are equal in number. But isnt the scale tilted in favour of the fermions?

Supersymmetry is the idea that for every fermion there is a symmetric partner boson, vice versa. Personally, I don't subscribe to this idea.

[Max™]

No no, it means in the families there is 1 fermion for each boson.

Total quantity wise, I'd say there are more bosons because spacetime is a sea of photons, and gravitons should be bosonic.

[dipayankar]

Hmm... Max, gravitrons have not been proven whereas photons have been. So we cant probably equate them together...

No no, it means in the families there is 1 fermion for each boson.

Total quantity wise, I'd say there are more bosons because spacetime is a sea of photons, and gravitons should be bosonic.

[AntonioLao]

Which means that the number of fermions and bosons are equal in number.

That's the crux of the matter, you are correct. But in a theory of quantized spacetime, it is the two distinct topologies of squares of energy that is equal in numbers.
Actually there are more photon bosons than baryonic or leptonic fermions in the entire universe.