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000484838 0247_ $$2arXiv$$aarXiv:2212.03876
000484838 0247_ $$2datacite_doi$$a10.3204/PUBDB-2022-06518
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000484838 088__ $$2arXiv$$aarXiv:2212.03876
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000484838 1001_ $$0P:(DE-H253)PIP1097861$$aLeedom, Jacob Michael$$b0$$eCorresponding author
000484838 245__ $$aHeterotic de Sitter Beyond Modular Symmetry
000484838 260__ $$c2022
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000484838 500__ $$a57 pages, 8 figures
000484838 520__ $$aWe study the vacua of $4d$ heterotic toroidal orbifolds using effective theories consisting of an overall Kahler modulus, the dilaton, and non-perturbative corrections to both the superpotential and Kahler potential that respect modular invariance. We prove two de Sitter no-go theorems for several classes of vacua and thereby substantiate previous conjectures. Additionally, we provide evidence that extrema of the scalar potential can occur inside the SL(2,$\mathbb{Z}$) fundamental domain of the Kahler modulus, in contradiction of a separate conjecture. We also illustrate a loophole in the no-go theorems and determine criteria that allow for metastable de Sitter vacua. Finally, we identify inherently stringy non-perturbative effects in the dilaton sector that could exploit this loophole and potentially realize de Sitter vacua.
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000484838 7001_ $$0P:(DE-H253)PIP1090822$$aRighi, Nicole$$b1
000484838 7001_ $$0P:(DE-H253)PIP1013212$$aWestphal, Alexander$$b2
000484838 8564_ $$uhttps://arxiv.org/abs/2212.03876
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000484838 9141_ $$y2022
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