DOAJ Open Access 2020

dS spaces and brane worlds in exotic string theories

Ralph Blumenhagen Max Brinkmann Andriana Makridou Lorenz Schlechter Matthias Traube

Abstrak

Abstract We investigate string-phenomenological questions of Hull’s exotic superstring theories with Euclidean strings/branes and multiple times. These are known to be plagued by pathologies like the occurrence of ghosts. On the other hand, these theories exhibit de Sitter solutions. Our special focus lies on the question of the coexistence of such de Sitter solutions and ghost-free brane worlds. To this end, the world-sheet CFT description of Euclidean fundamental strings is generalized to include also the open string/D-brane sector. Demanding that in the “observable” gauge theory sector the gauge fields themselves are non-ghosts, a generalization of the dS swampland conjecture is found.

Topik & Kata Kunci

Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (5)

Ralph Blumenhagen

Max Brinkmann

Andriana Makridou

Lorenz Schlechter

Matthias Traube

Format Sitasi

APA MLA BibTeX

Blumenhagen, R., Brinkmann, M., Makridou, A., Schlechter, L., Traube, M. (2020). dS spaces and brane worlds in exotic string theories. https://doi.org/10.1007/JHEP06(2020)077

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Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.1007/JHEP06(2020)077
Akses: Open Access ✓