Heterotic M-theory cosmology in four and five dimensions
نویسندگان
چکیده
منابع مشابه
Cosmology and Heterotic M–Theory in Five–Dimensions
In these lectures, we present cosmological vacuum solutions of Hořava-Witten theory and discuss their physical properties. We begin by deriving the five–dimensional effective action of strongly coupled heterotic string theory by performing a reduction, on a Calabi–Yau three–fold, of M–theory on S/Z2. The effective theory is shown to be a gauged version of five–dimensional N = 1 supergravity cou...
متن کاملHeterotic M–theory in Five Dimensions
We derive the five–dimensional effective action of strongly coupled heterotic string theory for the complete (1, 1) sector of the theory by performing a reduction, on a Calabi–Yau three–fold, of M–theory on S1/Z2. A crucial ingredient for a consistent truncation is a non–zero mode of the antisymmetric tensor field strength which arises due to magnetic sources on the orbifold planes. The correct...
متن کاملGauge Five Brane Moduli in Four Dimensional Heterotic M-theory
We present the first example of a Kähler potential for heterotic M-theory which includes gauge bundle moduli. These moduli describe the background gauge field configurations living on the orbifold fixed planes. We concentrate on the bundle moduli describing the size and SU(2) orientation of a gauge five brane a soliton which is primarily composed of these gauge fields. Our results are valid whe...
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The open supermembrane contribution to the non-perturbative superpotential of bulk space five-branes in heterotic M -theory is presented. We explicitly compute the superpotential for the modulus associated with the separation of a bulk five-brane from an end-of-the-world three-brane. The gauge and κ-invariant boundary strings of such open supermembranes are given and the role of the holomorphic...
متن کاملHeterotic M – Theory Vacua with Five – Branes ∗
We construct vacua of heterotic M–theory with general gauge bundles and five–branes. Some aspects of the resulting low–energy effective theories are discussed. M–theory on the orbifold S/Z2 is believed to describe the strong coupling limit of the E8 × E8 heterotic string [1] and, therefore, constitutes a particularly interesting starting point for M–theory particle phenomenology. At low energy,...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2000
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.63.026003