2019/03/31 by Robin Terrisse, Dimitrios Tsimpis · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1007/jhep07(2019)034
26 pages. v2: uses the correct axionic connection, eq.(43)
arxiv created 2019/09/25 · arxiv updated 2019/09/26
We construct a four-dimensional consistent truncation to the bosonic part of the universal sector of Calabi-Yau IIA compactification (i.e. the gravity multiplet, one vectormultiplet, and one hypermultiplet) in the presence of background flux and fermionic condensates generated by gravitational instantons. The condensates are controlled by the ratio of the characteristic length of the Calabi-Yau to the string length, and can be fine-tuned to be dominant in a region of large volume and small string coupling. The consistent truncation admits de Sitter solutions supported by the condensates, subject to certain validity conditions that we discuss.