Superstring on PP-Wave Orbifold from Large-N Quiver Gauge Theory

الأصل · EN

We extend the proposal of Berenstein, Maldacena and Nastase to Type IIB superstring propagating on pp-wave over R⁴/ Zₖ orbifold. We show that first-quantized free string theory is described correctly by the large N, fixed gauge coupling limit of N=2 [U(N)]ᵏ quiver gauge theory. We propose a precise map between gauge theory operators and string states for both untwisted and twisted sectors. We also compute leading-order perturbative correction to the anomalous dimensions of these operators. The result is in agreement with the value deduced from string energy spectrum, thus substantiating our proposed operator-state map.