A Note on String Excitations and the Higuchi Bound

Lust, Dieter; Palti, Eran

doi:10.1016/j.physletb.2019.135067

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

A Note on String Excitations and the Higuchi Bound

MPS-Authors

Lust, Dieter
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Palti, Eran
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Lust, D., & Palti, E. (2019). A Note on String Excitations and the Higuchi Bound. Physics Letters B, 799, 135067. doi:10.1016/j.physletb.2019.135067.

Cite as: https://hdl.handle.net/21.11116/0000-0005-D79F-6

Abstract

In this brief note we consider the interaction between high spin excitations in string theory along the Regge trajectory and the Higuchi bound in de Sitter space. There is always a point along the Regge trajectory where the Higuchi bound is violated. However, this point precisely coincides with a string whose length is of order the de Sitter Hubble scale. String theory therefore manifests no immediate inconsistency as long as the string scale $M_s$ is above the Hubble scale $H$. However, an implication is that the Regge trajectory must be significantly modified at some ultraviolet scale. Insisting that this modification should occur no earlier than the Planck scale would lead to a bound on the string scale of $M_s > \sqrt{H M_p}$.