标题： 平面波背景中弦的T对偶性注记 显示英文标题

标题： A Note on T-duality of Strings in Plane-Wave Backgrounds

摘要： 我们通过直接计算玻色弦谱，展示了O(d,d;Z)（d=1,2）在最大超对称IIB平面波背景下紧化于S^1和T^2上的T对偶性。普通零模集合中只有一半出现在哈密顿量中。这个“一半”的Narain晶格被证明是由T对偶群稳定化的。 显示英文摘要

摘要： We show, by direct computations of bosonic string spectra, the O(d,d;Z) (d=1,2) T-duality in the maximally supersymmetric IIB plane-wave background compactified on S^1 and T^2. Only half of the ordinary set of zero modes appear in the Hamiltonian. This "half" Narain lattice is proved to be stabilized by the T-duality group.