We investigate the type IIA string on AdS(2)xS(2)xT(6) supported by RR-flux which describes the gravitational side of the AdS(2)/CFT(1) correspondence. While the four-dimensional part AdS(2)xS(2) can be realized as a supercoset, the full superstring has both coset and non-coset excitations, the latter giving rise to massless worldsheet modes, a somewhat novel feature in AdS/CFT. The string is nevertheless known to be integrable at the classical level. In this paper we perform several computations checking aspects of both classical and quantum string integrability. At the classical level we compute energies for the near BMN string and successfully match these against Bethe ansatz predictions. Furthermore, integrability dictates a magnon dispersion relation which we compare with the poles of loop corrected propagators, at both the one and two-loop level. At one loop, where only tadpole diagrams contribute, we find that the bosonic and fermionic contributions sum up to zero. Under the assumption of worldsheet supersymmetry, we then compute the two-loop sunset diagram in the near flat space limit. As in AdS(5)xS(5) we find that the result fits nicely into the sine-square structure of the dispersion relation.

翻译：我们调查AdS(2)xS(2)xxT(6)上AdS(2)xxT(6)的IIA字符串,该字符串由RR-flex支持,描述AdS(2)/FT(1)通信的引力侧面。虽然四维部分AdS(2)xS(2)可以作为超级cose实现,但全超字符串具有共合和非共合的引力,后者产生无质量的世界表模式,AdS/FlFT中具有某种新颖的特征。但已知该字符串在古典水平上是无法识别的。在本文中,我们进行数项计算,检查古典和量级字符串融合的方方面。在古典水平上,我们为接近BMNT的字符串计算能量,并成功地将这些能量匹配到比对贝萨茨的预测。此外,由于不兼容性,整个超维度要求一种大型扩散关系,我们与圆校正的传播器的极杆比较,在AdS/FLO。在一个循环上,只有调图能贡献。我们发现,然后将软体和推算为接近零的磁段。在Sdealexmatox的天平面结构结构中,我们找到了的正对正对面结构结构进行。