Andrew Strominger

Self-Dual Yang-Mills in AdS$_4$

Quantum Yang-Mills theory in Euclidean AdS$_4$ with Neumann boundary conditions is studied as a function of the complex couplings $\frac{1}{g_\pm^2} \equiv \frac{1}{g^2}\mp \frac{i \theta }{8 \pi^2}$. We define a"self-dual limit"by $g_- \to 0$ with $g_+ ~{\rm fixed}$. We argue that the limiting theory is well-defined p...