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On volume stabilization by quantum corrections

Marcus Berg
(
- Santa Barbara, KITP
)
,
Michael Haack
(
- Santa Barbara, KITP
)
,
Boris Kors
(
- MIT, LNS and
- Hamburg U., Inst. Theor. Phys. II and
- ZMP, Hamburg and
- MIT, Cambridge, CTP
)

Aug, 2005

4 pages

Published in:

Phys.Rev.Lett. 96 (2006) 021601

e-Print:

hep-th/0508171 [hep-th]

DOI:

10.1103/PhysRevLett.96.021601

Report number:

MIT-CTP-3675,
NSF-KITP-2005-56

View in:

ADS Abstract Service

reference search159 citations

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Abstract: (arXiv)

We discuss prospects for stabilizing the volume modulus of N=1 supersymmetric type IIB orientifold compactifications using only perturbative corrections to the Kahler potential. Concretely, we consider the known string loop corrections and tree-level alpha' corrections. They break the no-scale structure of the potential, which otherwise prohibits stabilizing the volume modulus. We argue that when combined, these corrections provide enough flexibility to stabilize the volume of the internal space without non-perturbative effects, although we are not able to present a completely explicit example within the limited set of currently available models. Furthermore, a certain amount of fine-tuning is needed to obtain a minimum at large volume.

Note:

15 pages, 3 figures; v2: references added

11.25.Mj
11.25.Uv
11.25.Wx
98.80.Cq
superstrings
supergravity
string model
supersymmetry
compactification: orientifold
potential: Kaehler

References(18)

Figures(3)

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