"Strangers passing in the street
By chance two separate glances meet
And I am you and what I see is me
And do I take you by the hand
And lead you through the land
And help me understand the best I can"

Thursday, July 29, 2010

Stringy-1

This universe is 10 dimensional. Which means we are actually holograms of our true selves, projections on this 4 dimensional world. The higher dimensions being curled up can only be probed in higher energies and shorter length scales. Some of these dimensions are compactified. This has strange consequences. For instance we will see the same mass being repeated along the direction of the compactified dimension since there's a periodicity in that direction. In the length scale where these dimensions are actually visible to us, we also enter into the realm of quantum mechanics. Over here there's time traveling, tunneling, and an overall probabilistic interpretation to all the events. Some set-up like the Schrodinger's cat experiment can translate these probabilities to our macro world, and this gives us an opportunity to think what if, our macro-world has been controlled by these strange set-ups? Of course this will do away with determinism, but there may remain some biased-ness towards certain events than others. Things (particles as well as waves) have a kind of fuzzy appearence, which when probed in gives us infinite mass, and other charges. This is when we probe in using the machinery of QFT, something very well established and experimentally verified upto certain energy/length scales. But truly this is the realm of string theory where those nonsenses(infinities) are no longer present. Everything reduces to finite, length and mass, which corresponds to the elusive string. The 1D object which wiggles and vibrates, producing modes each of which correspond to some particle that we see (fundamental particles). The string whose ends may be attached to some D-brane worlds, maybe some 4D world like ours. There may also be totally free strings, and there may be closed ones too. All these varieties give rise to different interesting interactions. Gravity arises from closed string dynamics, which interact very less with the 4D brane worlds we live in, explaining why gravity is weak. Then there are string-string interactions, which manifests itself as QFT in higher length scales. We humans are also built up of strings fundamentally. Surely consciousness can then someday(when we have a proper Lagrangian) be aptly explained, and free will will lose its meaning.

No comments:

Post a Comment