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6 posts tagged with entropy by kliuless.

Displaying 1 through 6 of 6.

## The observer at the end of time: Of immortal watchers and imaginary data

In a Multiverse, What Are the Odds? "Testing the multiverse hypothesis requires measuring whether our universe is statistically typical among the infinite variety of universes. But infinity does a number on statistics." (previously) [more inside]

## direct realism

The Nature of Computation - Intellects Vast and Warm and Sympathetic: "I hand you a network or graph, and ask whether there is a path through the network that crosses each edge exactly once, returning to its starting point. (That is, I ask whether there is a 'Eulerian' cycle.) Then I hand you another network, and ask whether there is a path which visits each node exactly once. (That is, I ask whether there is a 'Hamiltonian' cycle.) How hard is it to answer me?" (via) [more inside]

## TEDxCaltech

## spacetime must organise itself in a way that maximises entropy

Gravity from Quantum Information

*At the heart of their idea is the tricky question of what happens to information when it enters a black hole. Physicists have puzzled over this for decades with little consensus. But one thing they agree on is Landauer's principle: that erasing a bit of quantum information always increases the entropy of the Universe by a certain small amount and requires a specific amount of energy.*(via mr)## it from bit

Emergent Gravity - Erik Verlinde has a theory that "gravitational attraction could be the result of the way information about material objects is organised in space..." Here's some related weblog discussions and follow along on twitter! (via /. & bruces ;)

## Describing a New Entropy

Describing a New Entropy A reformulation of Boltzmann-Gibbs entropy by one Constantino Tsallis is causing quite a buzz/stir in the theoretical physics community. It was originally published in 1988, but it sounds like it's only recently hit its stride. There's going to be a conference on "Tsallis entropy" in October co-chaired by Murray Gell-Mann!

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