diffeomorphism invariant and target space Poincaré invariant state for a kinematical Weyl algebra $\mathfrak{A}$ which contains the [**Pohlmeyer Charges**]{} as a limit. We see here how LQG, AQFT and the theory of integrable systems click together: LQG provides a suitable Weyl algebra on which the worldsheet symmetries act as automorphisms, AQFT provides tools to construct representations thereof and finally the theory of integrable systems provides us with the invariant [**Pohlmeyer Charges**]{} which can be defined in our representation as well – defined operators and whose vacuum expectation values play the role of [*gauge invariant Wightman functions*]{}. In this representation Weyl invariance never arises, worldsheet diffeomorphism invariance and target space Poincaré invariance are exact symmetries without anomalies (central charges), ghosts (negative norm states) never arise and all physical states turn out to be of non – negative mass so that there is no tachyon.

In section seven we conclude, compare our results with ordinary string theory and repeat their consequences. It should be emphasized that in this paper we heavily exploited that the target space is flat and hence we only need a minimal amount of the techniques of LQG. The full power of LQG techniques however comes into play when 