论文标题
在没有tachyons的三个维度上的经典de Sitter解决方案？
Classical de Sitter solutions in three dimensions without tachyons?
论文作者
论文摘要
我们继续研究G2方向上的大规模IIA超级重度的紧凑性，并证明用抗D2和抗D6来源打破超对称性会导致3D理论，而典型的Tachyons为此无法处理经典DS溶液。然而，对于混凝土圆环示例，量化通量和电荷后，元稳定的DS窗口消失了。我们讨论了更一般的G2压缩的前景，并认为它们可以通过引入较大的t和扭曲的喉咙来减轻速降问题。但是，这些成分正是这些成分似乎将真空推向了开放式弦乐扇区中扰动的Brane-Flux衰变的边缘。这要么是NO-DS Swampland猜想的显着说明，要么是在很难控制参数空间区域中生活的真空。
We continue the study of compactifications of massive IIA supergravity on G2 orientifolds and demonstrate that breaking supersymmetry with anti-D2 and anti-D6 sources leads to 3d theories for which the typical tachyons haunting classical dS solutions can be absent. However for a concrete torus example the meta-stable dS window disappears after a quantization of fluxes and charges. We discuss the prospects of more general G2 compactifications and argue that they could potentially alleviate the tachyon problem by introducing larger tadpole numbers and warped throats. However, exactly those ingredients then seem to push the vacuum towards the brink of perturbative brane-flux decay in the open string sector. This is either a remarkable illustration of the no-dS swampland conjecture or such vacua live in very difficult to control regions of parameter space.
