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Martinez-Pedrera, Danny; Rummel, Markus; Mehta, Dhagash; Westphal, Alexander
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)2012
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)2012
AbstractAbstract
[en] We explicitly construct all supersymmetric flux vacua of a particular Calabi-Yau compactification of type IIB string theory for a small number of flux carrying cycles and a given D3-brane tadpole. The analysis is performed in the large complex structure region by using the polynomial homotopy continuation method, which allows to find all stationary points of the polynomial equations that characterize the supersymmetric vacuum solutions. The number of vacua as a function of the D3 tadpole is in agreement with statistical studies in the literature. We calculate the available tuning of the cosmological constant from fluxes and extrapolate to scenarios with a larger number of flux carrying cycles. We also verify the range of scales for the moduli and gravitino masses recently found for a single explicit flux choice giving a Kaehler uplifted de Sitter vacuum in the same construction.
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Dec 2012; 33 p; ISSN 0418-9833; 

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ALGORITHMS, ANALYTIC FUNCTIONS, ANALYTICAL SOLUTION, COMPACTIFICATION, COSMOLOGICAL CONSTANT, D-BRANES, DE SITTER SPACE, EQUATIONS, EXTRAPOLATION, FOUR-DIMENSIONAL CALCULATIONS, POLYNOMIALS, REST MASS, SPARTICLES, STRING THEORY, SUPERGRAVITY, SUPERSYMMETRY, THREE-DIMENSIONAL CALCULATIONS, TUNING, VACUUM STATES
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