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Monday, May 30, 2005

Microstates and Gravity


Strominger: That was the problem we had to solve. In order to count microstates, you need a microscopic theory. Boltzmann had one–the theory of molecules. We needed a microscopic theory for black holes that had to have three characteristics: One, it had to include quantum mechanics. Two, it obviously had to include gravity, because black holes are the quintessential gravitational objects. And three, it had to be a theory in which we would be able to do the hard computations of strong interactions. I say strong interactions because the forces inside a black hole are large, and whenever you have a system in which forces are large it becomes hard to do a calculation.



I was scanning over at Sean Carroll's blog and noticed his current article. It seems he is doing some kind of exorcism?:)

Entropy and intelligence


Consider the following system: a rectangular container filled part way with tiny spheres, some of them made of glass and some of brass. All the spheres have equal size, but the brass ones are heavier than the glass ones. Okay, now please tell me which of these configurations has the lowest entropy (or highest order, or greatest complexity, or whatever it is that you think only intelligence can bring into existence):


Now what was appealing to me here is the question of arrangement, and how chaotic systems might have been ruled by other consequences? Like gravity. So troubled by the analogy presented and distancing myself from some satanic feature of intelligent dsign, I wonder, what is going on here?


The animation shows schematically the behavior of the gas molecules in the presence of a gravitational field. We can see in this figure that the concentration of molecules at the bottom of the vessel is higher than the one at the top of the vessel, and that the molecules being pushed upwards fall again under the action of the gravitational field.


Now if I was to wonder about what would govern these thoughts, then indeed the question is raised that such intelligence is governed by a organizational ability that evolved from a better understanding of these graviational influences?

I am a junior here so the idea that such a exorcism would have been dispelled in this attempted has me wondering. Is there some greater design here in elminating the abilities of capable good thinking people and spooky actions, that have defied explanation?

A nice airplane ride is always fruitful to higher forms of thinking here? Time clocks, still exemplify some characteristics on molecular arangements? As well as Einstein and liethe impulsive qualites that such characters appeal to the scolastic heroes of our time, we are drawn by some inexplicable force to wonder about natures way?

Self Organization of Matter

Likewise, if the very fabric of the Universe is in a quantum-critical state, then the "stuff" that underlies reality is totally irrelevant-it could be anything, says Laughlin. Even if the string theorists show that strings can give rise to the matter and natural laws we know, they won't have proved that strings are the answer-merely one of the infinite number of possible answers. It could as well be pool balls or Lego bricks or drunk sergeant majors.


See:

  • Quantum Microstates
  • 1 comment:

    nige said...

    Plato,

    Reading this reminds me of 'Taylor instability', the instability at an interface between two fluids when the less dense fluid is pushing on the denser one. This is named after Sir Geoffery I. Taylor, who also took a simple problem in hydrodynamics and made a mathematical mess out of it, as I've proved by sorting the physics out far more briefly than he did, also getting the analytical result for a constant which eluded him (so much for famous geniuses if they can be so easily exposed as charlatans by mere technicians like me ;)

    One example of Taylor instability is the air pressure pushing down on the ocean with 1 atmosphere. Irregularities are magnified and ripples easily form.

    Best wishes,
    nigel