Large-Volume String Compactifications, Revisited

Abstract

We reconsider the issue of large-volume compactifications of the heterotic string in light of the recent discoveries about strongly-coupled string theories. Our conclusion remains firmly negative with respect to classical compactifications of the ten-dimensional field theory, albeit for a new reason: When the internal sixfold becomes large in heterotic units, the theory acquires an additional threshold at energies much less then the naive Kaluza-Klein scale. It is this additional threshold that imposes the ultimate limit on the compactification scale: Any compactification must have M_{Kaluza Klein} > 4*10^7 Gev; for most compactifications, the actual limit is much higher. (Generically, M_{Kaluza Klein} > alpha_{GUT} M_{Planck} in either SO(32) or E_8*E_8 heterotic string.)

46 pages, uses phyzzx.tex macros, no figures

References in corpus (3)

• Heterotic and Type I String Dynamics from Eleven Dimensions
• Eleven-Dimensional Supergravity on a Manifold with Boundary
• Evidence for Heterotic - Type I String Duality

Cited by in corpus (67)

• Phenomenology, Astrophysics and Cosmology of Theories with Sub-Millimeter Dimensions and TeV Scale Quantum Gravity
• The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang
• On Kaluza-Klein States from Large Extra Dimensions
• Grand Unification at Intermediate Mass Scales through Extra Dimensions
• The Universe as a Domain Wall
• Neutrino Masses from Large Extra Dimensions
• Black Holes and Sub-millimeter Dimensions
• Heterotic M-theory in Five Dimensions
• Indirect Collider Signals for Extra Dimensions
• TeV Scale Superstring and Extra Dimensions
• The Standard Model from extra dimensions
• Millimetre-Range Forces in Superstring Theories with Weak-Scale Compactification
• Supersymmetry and Electroweak breaking from extra dimensions at the TeV-scale
• Brane Interaction as the Origin of Inflation
• On the Four-Dimensional Effective Action of Strongly Coupled Heterotic String Theory
• Gluino Condensation in Strongly Coupled Heterotic String Theory
• Brane World
• BPS States of Exceptional Non-Critical Strings
• Stabilization of Sub-Millimeter Dimensions: The New Guise of the Hierarchy Problem
• Rapid Asymmetric Inflation and Early Cosmology in Theories with Sub-Millimeter Dimensions
• Strings at the Intermediate Scale, or is the Fermi Scale Dual to the Planck Scale?
• Phenomenology of Low Quantum Gravity Scale Models
• Non-standard embedding and five-branes in heterotic M-Theory
• Theory and Phenomenology of Type I strings and M-theory
• B, D and K decays
• Minimal Simple de Sitter Solutions
• Supersymmetry breaking in M-theory and gaugino condensation
• The Ten-dimensional Effective Action of Strongly Coupled Heterotic String Theory
• Axions and the Strong CP Problem in M-theory
• Baryogenesis in Models with a Low Quantum Gravity Scale
• Four-Dimensional Effective Supergravity and Soft Terms in M-Theory
• Gauge Unification in Highly Anisotropic String Compactifications
• Compactifications of M-theory and their Phenomenological Consequences
• Low-Scale Closed Strings and their Duals
• Scales and Cosmological Applications of M Theory
• Universality limits on bulk fermions
• Supergravity Radiative Effects on Soft Terms and the $\mu$ Term
• Cosmological Phase Transitions and Radius Stabilization in Higher Dimensions
• TeV-scale Supersymmetric Standard Model and Brane World
• Higher Loop Effects on Unification via Kaluza-Klein Thresholds
• Flavor violation and extra dimensions
• Small Instantons and Weak Scale String Theory
• Flavor Constraints on Split Fermion Models
• Compactification and Supersymmetry Breaking in M-theory
• Anisotropic Type I String Compactification, Winding Modes and Large Extra Dimensions
• Flavor ``Conservation'' and Hierarchy in TeV-scale Supersymmetric Standard Model
• Phenomenology of Non-Standard Embedding and Five-branes in M-Theory
• Pseudo-anomalous U(1) symmetry in the strong coupling limit of the heterotic string
• The Fayet-Iliopoulos term in Type-I string theory and M-theory
• Implications of a dilaton in gauge theory and cosmology
• TeV-Scale strings
• Yukawa Hierarchies From Extra Dimensions With Small FCNC
• Cosmology of Light Moduli
• Soft Terms in M-theory
• Scales of String Theory
• Supersymmetry breaking in M-theory
• A Dynamical Mechanism for Large Volumes with Consistent Couplings
• Recent Developments in Superstring Theory
• The Effective Kähler Potential And Extra Space-Time Dimensions
• On the Effective N=1 Supergravity of M-Theory
• Nucleon decay in gauge unified models with intersecting D6-branes
• Recent Developments in String Theory: A Brief Review for Particle Physicists
• Systematics of string loop threshold corrections in orbifold models
• Extra-dimensional gravity and dijet production at gamma gamma colliders
• Scale, Gauge Couplings, Soft Terms and Toy Compactification in M-theory on $S^1/Z_2$
• The Earliest Phase Transition?
• The Effective Potential And Additional Large Radius Compactified Space-Time Dimensions