# String theory and the wave function

1. Oct 13, 2005

### derz

How does the quantum mechanical wave function of a particle arise in ST?

Sorry if it has been asked before, but I couldn't find a topic about it.

2. Nov 16, 2006

### Demystifier

In string theory, the quantum state can be represented as a functional
$$\Psi[X(\sigma)]$$
In the pointlike limit you can ignore the dependence on \sigma, so what remains is a wave function
$$\Psi(X)$$

Last edited: Nov 16, 2006