Warping and F-term uplifting

Brax, Philippe; Davis, Anne-Christine; Davis, Stephen C.; Jeannerot, Rachel; Postma, Marieke

doi:10.1088/1126-6708/2007/09/125

Cited by 14 publications

(12 citation statements)

References 41 publications

(68 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This term can be induced e.g. by the warped anti D3 tension [20]; this is not essential for our purposes and other upliftings, such as D-term or F-term upliftings [81][82][83] can be used as well; they could also differ in the U scaling. For concreteness, in this section we focus on the uplifting (4.19) while in Sect.…”

Section: F-term Potential For the Conifoldmentioning

confidence: 99%

“…There are several alternatives in the literature, that can be divided into two groups: D-term [81,[109][110][111][112][113][114][115][116] or F-term upliftings [82,83,[117][118][119][120][121][122][123][124][125][126]. To keep our analysis general, following our discussion in Sect.…”

Section: A Simple Casementioning

confidence: 99%

“…Then, from the above equations, it is clear that some subtleties arise in the case b = 3 because then the factor (bβ−3) introduces an additional suppression that is not taken into account by the ε/μ and large volume expansion. On the other hand, b = 3 is quite interesting because explicit uplifting mechanisms exist with this scaling [81][82][83][109][110][111][112][113][114][115][116][117][118][119][120][121][122][123][124][125][126]. A part from the anti D3-brane at the tip of a warped throat that scales with b = 2, we are not aware of any other explicit model with b = 3; such scaling could be interpreted 37 as if the physics responsible for the susy-breaking were localized on a Dp-brane with p = 3.…”

Section: Wwwfp-journalorgmentioning

confidence: 99%

See 2 more Smart Citations

Phenomenological aspects of type IIB flux compactifications

Pajer

2009

Fortschritte der Physik

View full text Add to dashboard Cite

The purpose of this work is to investigate how phenomenologically successful constructions in the field of high energy physics can be embedded into a fundamental theory, and what we can learn from this procedure. In fact, the synergy of an effective and a fundamental approach might be very fruitful. On the one hand, it poses several theoretical challenges to potential candidates for a fundamental theory, which might be ruled out or restricted in their generality. On the other hand, this mutual interplay can inspire new experiments and observations or suggest correlations which are invisible from an effective point of view. Our starting point is that string theory is entitled to be a valid candidate for a fundamental theory by a series of properties such as the fact that it is a consistent, UV‐finite, anomaly‐free quantum theory and it describes, in appropriate limits, quantum field theory and general relativity, hence providing a unified description of the four known forces. Within string theory, we choose to work in the framework of type IIB flux compactifications where the issue of moduli stabilization can be successfully addressed. On the phenomenological side, we focus on particle physics and cosmology, and in particular on the MSSM and the mechanism of inflation, respectively. We construct and study two different models of inflation in string theory. These are models of brane inflation, i.e. models where the primordial exponential expansion of the universe is driven by a scalar field representing the position of a D3‐brane (a 3+1‐dimensional dynamical object) in a compact space. We show explicitly that, allowing for fine tuning, a prolonged stage of slow‐roll inflation can be achieved during which perturbations are generated in good agreement with the CMB data. In addition, we give an example of the fruitful synergy we mentioned above. One of our two models, namely inflation at the tip, might induce also DBI inflation which produces peculiar features in the spectrum of density perturbations that might be looked for using CMB data. On the particle physics side, we consider a model, the large volume scenario (LVS), which, among other things, provides a rationale for a low scale susy‐breaking. We perform some checks on the consistency of LVS as a string theory model. To this end, we formulate an educated guess for the form of string loop corrections. We then show that physical predictions such as the soft susy‐breaking terms are actually surprisingly robust against the inclusion of these corrections.

show abstract

Section: F-term Potential For the Conifoldmentioning

confidence: 99%

Section: A Simple Casementioning

confidence: 99%

Section: Wwwfp-journalorgmentioning

confidence: 99%

See 1 more Smart Citation

Phenomenological aspects of type IIB flux compactifications

Pajer

2009

Fortschritte der Physik

View full text Add to dashboard Cite

show abstract

“…Alternative proposals for constructing Minkowski or de Sitter vacua either deform the theory, as in the so-called Kähler uplift [27,28], or extend its field content, by e.g. the addition of open string fields and gauge dynamics [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. However, these solutions may ultimately only correspond to a particular branch of a much wider set of metastable de Sitter solutions, and it is possible that more general and simpler solutions remain to be discovered.…”

Section: Introductionmentioning

confidence: 99%

A new class of de Sitter vacua in type IIB large volume compactifications

Gallego

Marsh

Vercnocke

et al. 2017

J. High Energ. Phys.

View full text Add to dashboard Cite

We construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the 'Large Volume Scenario' anti-de Sitter vacua, and can analogously be realised at parametrically large volume and weak string coupling, using standard N = 1 supergravity. For these new vacua, a positive vacuum energy is achieved from the inclusion of a small amount of fluxinduced supersymmetry breaking in the complex structure and axio-dilaton sector, and no additional 'uplift' contribution (e.g. from anti-branes) is required. We show that the approximate no-scale structure of the effective theory strongly influences the spectrum of the stabilised moduli: one complex structure modulus remains significantly lighter than the supersymmetry breaking scale, and metastability requires only modest amounts of tuning. After discussing these general results, we provide a recipe for constructing de Sitter vacua on a given compactification manifold, and give an explicit example of a de Sitter vacuum for the compactification on the Calabi-Yau orientifold realised in CP 4 11169 . Finally, we note that these solutions have intriguing implications for phenomenology, predicting no superpartners in the spectrum below ∼50 TeV, and no WIMP dark matter.

show abstract

“…This procedure is known as F-term uplifting (for recent work, see see e.g. [13,14,15,16,17,18,19,20] and references therein). An appealing feature is that this procedure can result in a small gravitino mass, while maintaining a high potential barrier, resulting in long-lived de-Sitter vacua [14,17,18,21].…”

Section: Introductionmentioning

confidence: 99%

Moduli evolution in the presence of matter fields and flux compactification

Bruck

Choi

Hall

2007

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

Abstract:We provide a detailed analysis of the dynamics of moduli fields in the KKLT scenario coupled to a Polonyi field, which plays the role of a hidden matter sector field. It was previously shown that such matter fields can uplift AdS vacua to Minkowski or de Sitter vacua. Additionally, we take a background fluid into account (which can be either matter or radiation), which aids moduli stabilisation. Our analysis shows that the presence of the matter field further aids stabilisation, due to a new scaling regime. We study the system both analytically and numerically.Keywords: physics of the early universe, string theory and cosmology, cosmological applications of theories with extra dimensions.

show abstract

Warping and F-term uplifting

Cited by 14 publications

References 41 publications

Phenomenological aspects of type IIB flux compactifications

Phenomenological aspects of type IIB flux compactifications

A new class of de Sitter vacua in type IIB large volume compactifications

Moduli evolution in the presence of matter fields and flux compactification

Contact Info

Product

Resources

About