sabato 21 settembre 2013

Bohemian Gravity

Ecco finalmente una nuova cover da dedicare ai nostri amici geek. Bohemian Gravity (ispirata all'originale Bohemian Rhapsody dei Queen) si può considerare a tutti gli effetti un indimenticabile masterpiece, frutto del genio di Timothy Blaise, giovane fisico della McGill University. Il video proposto da questo ragazzo appassionato di teoria delle stringhe accompagna (e "pubblicizza") il suo lavoro di tesi, intitolato appunto "A new quantization condition for parity-violating three-dimensional gravity" (pdf).


Is string theory right?
Is it just fantasy?
Caught in the landscape,
Out of touch with reality
On S5 or T*S3

Space is a pure void
Why should it be stringy? 
Because it's quantum not classical
Any way you quantize
You'll encounter infinity
You see

Must interact
Via paths we understand
Using Feynman diagrams
Often, they will just rebound
But now and then they go another way
A quantum
Infinities will make you cry
Unless you can renormalize your model
Of baryons, fermions
And all other states of matter

Curved space:
The graviton
Can be thought of as a field
But these infinities are real
In a many-body
Loop diagram
Our results diverge no matter what we do...
A Quantum Soup (any way you quantize)
Kiss your fields goodbye
Guess Einstein's theory wasn't complete at all!

I see extended 1-D objects with no mass
What's their use? What's their use? Can they give us quark plasma?
What to minimize?
What functional describes this
Nambu-Goto! (Nambu-Goto)
Nambu-Goto! (Nambu-Goto)
How to quantize I don't know
I'm just a worldsheet, please minimize me
He's just a worldsheet from a string theory
Reperametrized by a Weyl symmetry!

Fermi, Bose, open, closed, orientable?
Modes! They become particles (particles!)
They become particles (particles!)
They become particles (particles!)
Become particles (particles!)
Become particles (many many many many particle...)
Modes modes modes modes modes modes modes!
Oh mamma mia mamma mia,
Such a sea of particles!
A tachyon, with a dilaton and gravity-vity-VITY

(rock out!)

Now we need ten dimensions and I'll tell you why
(anomaly cancellation!)
So to get down to 4D we compactify!
Oh, Kahler!
(Kahler manifold)
Manifolds must be Kahler!
(Complex Reimannian symplectic form)
If we wanna preserve
Any of our super-symmetry

(Superstrings of type I, IIa and IIb)
(Heterotic O and Heterotic E)
(All are one through S and T duality)
(Thank you Ed Witten for that superstring revolution and your new M-theory!)

(Type IIB String!)
Dual! Dual!
(In the AdS/CFT)

Molecules and atoms
Light and energy
Time and space and matter
All from one united

Any way you quantize...

Lyrics and arrangement by Tim Blais and A Capella Science
Original music by Queen

E se tutto ciò non dovesse bastarvi e avanzarvi potete recarvi sul suo canale youtube e assaporare il resto della sua ampia produzione artistica.


Ops! Mi sono accorta un pò in ritardo che ne aveva già parlato Leonardo  su Tamburo Riparato. Sorry!

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