Constructing stable de Sitter in M-theory from higher curvature corrections - INSPIRE

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Constructing stable de Sitter in M-theory from higher curvature corrections

Johan Blåbäck
(
- INFN, Rome2 and
- Rome U., Tor Vergata
)
,
Ulf Danielsson
(
- Uppsala U.
)
,
Giuseppe Dibitetto
(
- Uppsala U.
)
,
Suvendu Giri
(
- Uppsala U.
)

Feb 11, 2019

24 pages

Published in:

JHEP 09 (2019) 042

Published: Sep 6, 2019

e-Print:

1902.04053 [hep-th]

DOI:

10.1007/JHEP09(2019)042 (publication)

Report number:

ROM2F/2019/02,
UUITP-6/19

View in:

reference search22 citations

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Abstract: (Springer)

We consider dimensional reductions of M-theory on 𝕋7/ Z32 with the inclusion of arbitrary metric flux and spacetime filling KK monopoles. With these ingredients at hand, we are able to construct a novel family of non-supersymmetric yet tachyon free Minkowski extrema. These solutions are supported by pure geometry with no extra need for gauge fluxes and possess a fully stable perturbative mass spectrum, up to a single flat direction. Such a direction corresponds to the overall internal volume, with respect to which the scalar potential exhibits a no-scale behavior. We then provide a mechanism that lifts the flat direction to give it a positive squared mass while turning Mkw4 into dS4. The construction makes use of the combined effect of G7 flux and higher curvature corrections. Our solution is scale separated and the quantum corrections are small. Finally we speculate on novel possibilities when it comes to scale hierarchies within a given construction of this type, and possible issues with the choice of quantum vacuum.

Note:

v2: Published version, 24 pages

Flux compactifications
M-Theory
curvature: correction
curvature: high
correction: quantum
potential: scalar
scale: hierarchy
flat direction
stability
M-theory

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