English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We discuss maximally symmetric curved deformations of the flat domain wallsolutions of five-dimensional dilaton gravity that appeared in a recentapproach to the cosmological constant problem. By analyzing the bulk fieldconfigurations and the boundary conditions at a four-dimensional maximallysymmetric curved domain wall, we obtain constraints on such solutions. For aspecial dilaton coupling to the brane tension that appeared in recent works, wefind no curved deformations, confirming and extending slightly a result ofArkani-Hamed et al which was argued using a $Z_2$-symmetry of the solution. Formore general dilaton-dependent brane tension, we find that the curvature isbounded by the Kaluza-Klein scale in the fifth dimension.Comment: 9 pages, harvmac big. Version 2: Significant error in quantitative  bounds corrected; bounds are not numerically smaller than Standard Model  physics without further assumptions about the VEV of the dilaton. However,  qualitative bound on curvature scale by bulk Kaluza-Klein scale unchanged  Version 3: Minor change

Bounds on curved domain walls in 5D gravity