# Start a new discussion

## Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

## Discussion Tag Cloud

Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• CommentRowNumber1.
• CommentAuthorBen_Sprott
• CommentTimeJan 25th 2012

Hi,

I would like to contribute to the nLab page on state spaces. In particular I would like to build up to this through a particular route, for which I will need some help. I have been trying to build a notion of state space out of a monad. I have found a paper where a state space is built from a comonad. The paper in particular is Vicary’s work on the quantum harmonic oscillator. The adjunction $F = RQ$ in section 4.1, he calls a state space for multi-particle system or Fock space. This $F$ is a comonad. I guess, in short, could we put up an article for comonads as state spaces?