D-theory is an alternative non-perturbative approach to quantum field theory formulated in terms of discrete quantized variables instead of classical fields. Classical scalar fields are replaced by generalized quantum spins and classical gauge fields are replaced by quantum links. The classical fields of a d-dimensional quantum field theory reappear as lowenergy effective degrees of freedom of ...

Synthesizing older ideas about the 1/N expansion in gauge theory, the quantum mechanics of black holes, and quantum field theory in Anti de Sitter space, a new correspondence between gauge theory and quantum gravity has illuminated both subjects.

Gauge theory of gravity is formulated based on principle of local gauge invariance. Because the model has strict local gravitational gauge symmetry, gauge theory of gravity is a perturbatively renormalizable quantum model. However, in the original model, all gauge gravitons are massless. We want to ask that whether there exists massive gravitons in Nature? In this paper, we will propose a gauge...

We show that to cubic order double field theory is encoded in Yang-Mills theory. To this end we use algebraic structures from string as follows: The ${L}_{\ensuremath{\infty}}$-algebra of the tensor product $\mathcal{K}\ensuremath{\bigotimes}\mathfrak{g}$ Lie algebra $\mathfrak{g}$ gauge group and a ``kinematic algebra'' $\mathcal{K}$ ${C}_{\ensuremath{\infty}}$-algebra. This structure induces ...

We construct analytic solutions for marginal deformations satisfying the reality condition in open superstring field theory formulated by Berkovits when operator products made of the marginal operator and the associated superconformal primary field are regular. Our strategy is based on the recent observation by Erler that the problem of finding solutions for marginal deformations in open supers...