Results 71 to 80 of about 556 (164)

Scale separation from O-planes

open access: yesJournal of High Energy Physics
Orientifold planes play a crucial role in flux compactifications of string theory, and we demonstrate their deep connection to achieving scale-separated solutions.
George Tringas, Timm Wrase
doaj   +1 more source

Supersymmetric scale-separated AdS3 orientifold vacua of type IIB

open access: yesJournal of High Energy Physics
I construct supersymmetric AdS3 vacua of type IIB string theory that exhibit parametric scale separation in the controlled regime. These solutions arise from compactifications on seven-dimensional manifolds equipped with co-closed G 2-structures, in the ...
Vincent Van Hemelryck
doaj   +1 more source

Braneworld black holes [PDF]

open access: yes, 2006
The braneworld paradigm provides an interesting framework within which to explore the possibility that our Universe lives in a fundamentally higher dimensional space- time.
Whisker, Richard
core  

On stabilization of magnetically charged brane shell and over-extremality

open access: yesJournal of High Energy Physics
In string theory, we can geometrically realize a metastable state by wrapping D5-branes and anti D5-branes to a singular manifold. We consider wrapping D3-branes to the internal space in this setup.
Sohei Tsukahara
doaj   +1 more source

Asymptotics of 5d supergravity theories and the emergent string conjecture

open access: yesJournal of High Energy Physics
We invoke probe brane arguments to classify the asymptotic behavior of general five-dimensional supergravity theories with eight supercharges near infinite distance boundaries of the vector multiplet moduli space.
Lukas Kaufmann   +2 more
doaj   +1 more source

Bulk fields with brane terms

open access: yes, 2003
In theories with branes, bulk fields get in general divergent corrections localized on these defects. Hence, the corresponding brane terms are renormalized and should be included in the effective theory from the very beginning.
J. Santiago   +2 more
core   +1 more source

Single versus multifield scalar potentials from string theory

open access: yesJournal of High Energy Physics
In this work, we investigate the properties of string effective theories with scalar field(s) and a scalar potential. We first claim that in most examples known, such theories are multifield, with at least 2 non-compact field directions; the few counter ...
David Andriot   +2 more
doaj   +1 more source

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