A)dS Backgrounds from Asymmetric Orientifolds

By E. Silverstein. 2001

156 citations recorded by the source corpus.

I present asymmetric orientifold models which, with the addition of RR fluxes, fix all the NS NS moduli including the dilaton. In critical string theory, this gives new AdS backgrounds with (discretely tunably) weak string coupling. Extrapolating to super-critical string theory, this construction leads to a promising candidate for a metastable de Sitter background with string coupling of order 1/10 and dS radius of order 100 times the string scale. Extrapolating further to larger and larger super-critical dimension suggests the possibility of finding de Sitter backgrounds with weaker and weaker string coupling. This note is an updated version of the last part of my Strings 2001 talk.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/099b46fa8e2b124cae15a6eaf45eb38684ad0d52

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Andrei Linde
2. R. Kallosh
3. E. Silverstein
4. Liam McAllister
5. S. Kachru
6. Eran Palti
7. A. Westphal
8. D. Baumann

In Nuclear and High Energy Physics

1. Andrei Linde
2. E. Silverstein
3. R. Kallosh
4. Liam McAllister
5. S. Kachru
6. Eran Palti
7. A. Westphal
8. D. Baumann

Citations in the corpus

• What if string theory has no de Sitter vacua? (2018, background): “ct models. Second, we divide the constructions into critical versus non-critical string theory. Historically the rst attempts to construct dS solutions were in fact made in non-critical string theory [32,33]3. The main idea here is that the eective action (in string frame) now gets an extra contribu”
• Clean Time-Dependent String Backgrounds from Bubble Baths (2002, background): “2 A noncritical string construction for de Sitter space is under investigation [4].”
• The Landscape, the Swampland and the Era of Precision Cosmology (2018, methodology): “These models describe classical Calabi-Yau compactifications of Type II string theory with fluxes, D-branes and O-planes, or a more general class of manifolds with an SU(3) structure.”
• Brane/Flux Annihilation and the String Dual of a Non-Supersymmetric Field Theory (2001, background): “To stop this decompactification process, or to get an inflationary solution, it seems that one would have to find a novel means of stabilizing the K¨ahler moduli (for a discussion of moduli stabilization in roughly this context, see e.g. [5, 19 ]).”
• De Sitter Space In Non-Critical String Theory (2002, unknown): “Finally, we consider flux quantization and show that at large D the cosmological constant can be made parametrically small.”
• Simple de Sitter solutions (2007, background): “These followed earlier work on flux stabilization such as [7,8,9,10,11] and the original realization [12,13] that string theory produces a finely-spaced discretuum of flux contributions to the moduli potential.”
• Scales and hierarchies in warped compactifications and brane worlds (2002, background): “(For another approach, see [ 50 ].) Corrections at higher order in string loops or α′”
• Remarks on brane and antibrane dynamics (2014, background): “ualities. 3 Antibranes in uxes 3.1 Application of EFT De Sitter vacua of string theory may be numerous but they are not simple. (Meta)stability requires the balance of several forms of energy density [17]. The KKLT construction [18] begins with a supersymmetric anti-de Sitter vacuum and excites it b”