Results 91 to 100 of about 808 (166)

Systematics of type IIA moduli stabilisation

Journal of High Energy Physics, 2020
We analyse the flux-induced scalar potential for type IIA orientifolds in the presence of p-form, geometric and non-geometric fluxes. Just like in the Calabi-Yau case, the potential presents a bilinear structure, with a factorised dependence on axions ...
Fernando Marchesano, David Prieto, Joan Quirant, Pramod Shukla   +3 more
doaj   +1 more source

Geometrical Construction of Type I Superstring Vacua

, 1997
12 pages, latex, no figures; contribution to the Proceedings of the 12th Italian Conference on General Relativity and Gravitational Physics, Rome, september 23-27 ...
openaire   +2 more sources

Large field ranges from aligned and misaligned winding

Journal of High Energy Physics, 2019
We search for effective axions with super-Planckian decay constants in type IIB string models. We argue that such axions can be realised as long winding trajectories in complex-structure moduli space by an appropriate flux choice.
Arthur Hebecker, Daniel Junghans, Andreas Schachner   +2 more
doaj   +1 more source

Aspects of finite temperature corrections in string theory

, 2011
PhDIn this thesis some aspects of temperature corrections in string theory are analyzed: in particular, we study the thermal contributions to the 4 dimensional effective potential arising from string theory compactifications.
Calo, Vincenzo
core  

Topics in flux compactifications of type IIA superstring theory [PDF]

, 2008
textRealistic four-dimensional model building from string theory has been a focus of the string theory community ever since its inception. Toroidal orientifold constructions have emerged as a technically simple class of candidate models.
Ihl, Matthias, 1977-
core  

When rational sections become cyclic — Gauge enhancement in F-theory via Mordell-Weil torsion

Journal of High Energy Physics, 2018
We explore novel gauge enhancements from abelian to non-simply-connected gauge groups in F-theory. To this end we consider complex structure deformations of elliptic fibrations with a Mordell-Weil group of rank one and identify the conditions under which
Florent Baume, Mirjam Cvetič, Craig Lawrie, Ling Lin   +3 more
doaj   +1 more source

100 years of mathematical cosmology: Models, theories and problems, Part B. [PDF]

Philos Trans A Math Phys Eng Sci, 2022
Cotsakis S, Yefremov AP.
europepmc   +1 more source

Strings 2008 : A New Infinite Class of Anti-de Sitter Flux Vacua, D-brane Instantons in Type II Orientifolds and Superstring Amplitudes

, 2008
Talks about supersymmetric AdS and vacua, D-brane instantons and Superstring Amplitudes - formal progress and implications for ...

core  

Quantum Kerr tunneling vacua on a (DD¯)4-brane: An emergent Kerr black hole in five dimensions

, 2014
A non-perturbation formalism underlying a quantum theory of gravity is revisited by exploiting a two form in a non-linear U(1) gauge theory on a D4-brane.
Pandey, K. Priyabrat, Kar, Supriya, Singh, Abhishek K., Singh, Sunita   +3 more
core   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source