Seguir a @pmarsupia

//

!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); // ]] >

// ]]>

Nada nos gusta tanto en este blog como celebrar el sentido del humor de los científicos. Llevo toda la tarde saltando de alegría después de descubrir esta genialidad de Tim Blais.

Tim es un estudiante canadiense de física teórica que acaba de terminar su tesis de Máster. (Para el que tenga curiosidad en leerla, la podéis encontrar aquí).

Hace unos días colgó en YouTube este vídeo explicando la Teoría de Cuerdas al ritmo de "Bohemian Rapsody" de Queen.

Nota previa: la explicación es bastante hard-core (al menos a mí me ha costado seguirla y se supone que tengo un doctorado en física). Así que si os perdéis, no preocuparse y disfrutad del ingenio. Debajo del vídeo he puesto la letra de la canción. También he añadido enlaces a explicaciones sobre los conceptos y los científicos de los que habla.

Ladies and Gentlemen, disfruten de "Bohemian Gravity" por Tim Blais

Ver vídeo

Is string theory right?

Is it just fantasy?

Caught in the landscape,

Out of touch with reality

Compactified

On S5 or T*S3

Space is a pure void

Why should it be stringy?

Because it’s quantum not classical

Nonrenormalizable

Any way you quantize

You’ll encounter infinity

You see

Quanta

Must interact

Via paths we understand

Using Feynman diagrams

Often, they will just rebound

But now and then they go another way

A quantum

Loooooop

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

String?

Nambu-Goto! (Nambu-Goto)

Nambu-Goto! (Nambu-Goto)

How to quantize I don’t know

Polyakov!

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?

Vibrations

Modes! They become particles (particles!)

Vibrations

They become particles (particles!)

Vibrations

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!)

(Maldecena!)

(Super-Yang-Mills!)

(Type IIB String!)

Dual! Dual!

(In the AdS/CFT)

(Holography!)

Molecules and atoms

Light and energy

Time and space and matter

All from one united

Theory

Any way you quantize…