Results 141 to 150 of about 1,110,824 (191)

Heterotic Flux Attractors

, 2010
We find attractor equations describing moduli stabilization for heterotic compactifications with generic SU(3)-structure. Complex structure and K\"ahler moduli are treated on equal footing by using SU(3)xSU(3)-structure at intermediate steps.
A Strominger, A Strominger, A-K Kashani-Poor, B Carlos de, C Caviezel, D Andriot, D Cassani, D Cassani, F Larsen, F Larsen, Finn Larsen, G Dall’Agata, G Lopes Cardoso, G Lopes Cardoso, H Ooguri, J Shelton, J Shelton, K Becker, K Becker, K Dasgupta, L Anguelova, L Anguelova, Lilia Anguelova, M Becker, M Graña, M Graña, M Graña, M Graña, M Ihl, N Hitchin, O DeWolfe, R Kallosh, Ross O’Connell, S Bellucci, S Ferrara, S Ferrara, S Gurrieri, SB Giddings, T Kimura   +38 more
core   +1 more source

Calabi-Yau period geometry and restricted moduli in Type II compactifications

Journal of High Energy Physics
The period geometry of Calabi-Yau n-folds — characterised by their variations of Hodge structure governed by Griffiths transversality, a graded Frobenius algebra, an integral monodromy and an intriguing arithmetic structure — is analysed for applications
Janis Dücker, Albrecht Klemm, Julian F. Piribauer   +2 more
doaj   +1 more source

Linking the supersymmetric standard model to the cosmological constant. [PDF]

J High Energy Phys, 2021
Qiu YC, Tye SH.
europepmc   +1 more source

Supersymmetry Breaking by Fluxes

, 2018
Type II string theory and M-theory admit flux configurations that break supersymmetry below the Kaluza-Klein scale. These backgrounds play a central role in most models of the string landscape.
Sethi, Savdeep
core   +1 more source

Warped branches of flux compactifications [PDF]

Physical Review D, 2012
We consider Freund-Rubin-type compactifications which are described by (p+q)-dimensional Einstein gravity with a positive cosmological constant and a q-form flux. Using perturbative expansions of Kinoshita's ansatz for warped dS_pxS^q and AdS_pxS^q spacetimes, we obtain analytical solutions describing the warped branches and their respective phase ...
openaire   +2 more sources

M-theory Compactifications on Manifolds with G2 Structure

, 2004
In this paper we study M-theory compactifications on manifolds of G2 structure. By computing the gravitino mass term in four dimensions we derive the general form for the superpotential which appears in such compactifications and show that beside the ...
Acharya B S, Acharya B S, Acharya B Witten E, Alexander S Becker K Becker M Dasgupta K Knauf A Tatar R, Andrei Micu, Atiyah M, Barrett A B Lukas A, Beasley C, Becker K, Becker K, Becker K Becker M Dasgupta K Tatar R, Becker M, Becker M Dasgupta K, Behrndt K, Behrndt K Cvetic M, Behrndt K Cvetic M, Cardoso G L, Carlos B de Lukas A Morris S, Cascales J F G, Cvetic M Shiu G Uranga A M, Dall'Agata G, Frey A R, Gauntlett J P, Gauntlett J P, Gauntlett J P Martelli D Sparks J Waldram D, Grana M, Gurrieri S, Gurrieri S, House T Lukas A, Joyce D D, Kachru S, Kaste P, Kaste P, Lukas A, Lukas A Saffin P M, Martelli D, Mayer C Mohaupt T, Micu A, Serone M, Thomas House, Wess J, Witten E, Witten E   +42 more
core   +3 more sources

Racetrack potentials and the de Sitter swampland conjectures

Journal of High Energy Physics, 2019
We show that one can find de Sitter critical points (saddle points) in models of flux compactification of Type IIB String Theory without any uplifting terms and in the presence of several moduli.
Jose J. Blanco-Pillado, Mikel A. Urkiola, Jeremy M. Wachter   +2 more
doaj   +1 more source

Flux Compactifications: Stability and Implications for Cosmology

, 2004
We study the dynamics of the size of an extra-dimensional manifold stabilised by fluxes. Inspecting the potential for the 4D field associated with this size (the radion), we obtain the conditions under which it can be stabilised and show that stable ...
Becker K, Brandenberger R H Randjbar-Daemi S, Buchmuller W Hamaguchi K Lebedev O Ratz M, Burgess C P, Burgess C P Matias J Quevedo F, Contaldi C R Kofman L Peloso M, Emparan R, Giddings S B, Giddings S B Myers R C, Gunther U, Gunther U, Holtmann E, Ignacio Navarro, Jarv L Mohaupt T Saueressig F, Jose Santiago, Kachru S, Kolb E W, Misner C W, Neupane I P, Ohta N, Silverstein E, Tegmark M (SDSS Collaboration), Trodden M Carroll S M, Wolf J A   +23 more
core   +1 more source

Compact G2 holonomy spaces from SU(3) structures

, 2019
We construct novel classes of compact G2 spaces from lifting type IIA flux backgrounds with O6 planes. There exists an extension of IIA Calabi-Yau orientifolds for which some of the D6 branes (required to solve the RR tadpole) are dissolved in $F_2 ...
Andriolo, Stefano, Shiu, Gary, Triendl, Hagen, Van Riet, Thomas, Venken, Gerben, Zoccarato, Gianluca   +5 more
core   +2 more sources

On Classical de Sitter Vacua in String Theory

, 2010
We review the prospect of obtaining tree-level de Sitter (dS) vacua and slow-roll inflation models in string compactifications. Restricting ourselves to the closed string sector and assuming the absence of NSNS-sources, we classify the minimal classical ...
Acharya, Aldazabal, Blumenhagen, Cassani, Caviezel, Caviezel, Covi, Dall'Agata, Danielsson, de Carlos, de Wit, Denef, DeWolfe, Douglas, Flauger, Giddings, Grana, Grimm, Haque, Hertzberg, Ihl, Kachru, Koerber, Maldacena, Roest, Silverstein   +25 more
core   +1 more source