Johnicholas comments on How to think like a quantum monadologist - Less Wrong

-14 Post author: Mitchell_Porter 15 October 2009 09:37AM

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Comment author: gwern 15 October 2009 03:05:34PM 1 point [-]

I think it must be the FP monad; here's a sigfpe post which is, as usual, above me but which seems to treat vectors as Haskell monads: http://blog.sigfpe.com/2007/03/monads-vector-spaces-and-quantum.html

Comment author: Johnicholas 15 October 2009 03:10:43PM 0 points [-]

But where does Mitchell Porter use anything from the functional programming side of things?

Comment author: gwern 15 October 2009 03:51:21PM 1 point [-]

It might be this bit:

At any time, the universe consists of a number of entities whose formal states inhabit Hilbert spaces of various dimension (thus |01>+|10> comes from a four-dimensional Hilbert space, while |1> comes from a two-dimensional Hilbert space), and the true dynamics consists of repeatedly jumping from one such set of entity-states to another set of entity-states.

But really, I was replying to whpearson's question about bogus's comment. (The FP monad at least makes more sense to me than Leibniz's monads.)

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