Bubble needs strings

Abstract

In this paper, we want to emphasize the pivotal role played by strings in the model realizing de Sitter using an expanding bubble, proposed and subsequently developed in arXiv:1807.01570, arXiv:1907.04268, and arXiv:2001.07433. Contrary to the Randall-Sundrum model of brane-localized gravity, we use the end points of radially stretched strings to obtain matter sourcing gravity induced on the bubble wall. This allows us to reinterpret the possible volume divergence coming from naive dimensional reduction as mass renormalization in four dimensional particle physics. Furthermore, we argue that the residual time dependence in the bulk, pointed out by some recent work as a possible shortcoming of such models, is automatically cured in presence of these stringy sources.

arXiv commentv2: Published version, 15 pages + 2 pages references, 4 figures, can be printed in black and white

References in corpus (23)

• Gauge Theory Correlators from Non-Critical String Theory
• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Holographic Reconstruction of Spacetime and Renormalization in the AdS/CFT Correspondence
• Lecture Notes on Holographic Renormalization
• The Swampland: Introduction and Review
• Holographic Renormalization
• Gravity in the Randall-Sundrum Brane World
• How to go with an RG Flow
• Linearized Gravity in Brane Backgrounds
• What if string theory has no de Sitter vacua?
• Holography at finite cutoff with a $T^2$ deformation
• De Sitter vs Quintessence in String Theory
• $T\bar{T}$ and the mirage of a bulk cutoff
• Emergent de Sitter Cosmology from Decaying AdS
• de Sitter in non-supersymmetric string theories: no-go theorems and brane-worlds
• de Sitter Cosmology on an expanding bubble
• Nothing really matters
• Geometries with mismatched branes
• Dark Energy, Extra Dimensions, and the Swampland
• Dark bubbles: decorating the wall
• Catalytic Creation of Baby Bubble Universe with Small Positive Cosmological Constant
• Generalized Holographic Cosmology

Cited by in corpus (7)

• A higher-dimensional view on quantum cosmology
• Dark bubbles and black holes
• Gravitational waves in dark bubble cosmology
• Features of a dark energy model in string theory
• Catalytic Creation of Bubble Universe Induced by Quintessence in Five Dimensions
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Weak gravity at micron scales from dark bubble cosmology and its cosmological consequences