Potentials between D-Branes in a Supersymmetric Model of Space-Time Foam
arXiv:gr-qc/0501060 · doi:10.1103/PhysRevD.71.106006
Abstract
We study a supersymmetric model of space-time foam with two stacks each of eight D8-branes with equal string tensions, separated by a single bulk dimension containing D0-brane particles that represent quantum fluctuations. The ground-state configuration with static D-branes has zero vacuum energy, but, when they move, the interactions among the D-branes and D-particles due to the exchanges of strings result in a non-trivial, positive vacuum energy. We calculate its explicit form in the limits of small velocities and large or small separations between the D-branes and/or the D-particles. This non-trivial vacuum energy appears as a central charge deficit in the non-critical stringy model describing perturbative string excitations on a moving D-brane. These calculations enable us to characterise the ground state of the D-brane/D-particle system, and provide a framework for discussing brany inflation and the possibility of residual Dark Energy in the present-day Universe.
arXiv comment26 pages Latex, four eps figures incorporated, minor typos corrected, no effects on conclusions
References in corpus (25)
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- Evidence for Heterotic - Type I String Duality
- D-branes and Short Distances in String Theory
- D-brane dynamics
- New Formulations of D=10 Supersymmetry and D8-O8 Domain Walls
- String Theory Modifies Quantum Mechanics
- A supersymmetric D-brane Model of Space-Time Foam
- Branes, Orientifolds and the Creation of Elementary Strings
- A Microscopic Liouville Arrow of Time
- The Heterotic Life of the D-particle
- String Creation and Heterotic-Type I' Duality
- (8,0) Quantum mechanics and symmetry enhancement in type I' superstrings
- How Large are Dissipative Effects in Non-Critical Liouville String Theory?
- Vacuum Energy and Cosmological Supersymmetry Breaking in Brane Worlds
- Sigma-model anomalies in compact type IIB orientifolds and Fayet-Iliopoulos terms
- Cosmic Acceleration and the String Coupling
- D-branes in Massive IIA and Solitons in Chern-Simons Theory
- Brany Liouville Inflation
- Gauge and gravitational anomalies in D=4 N=1 orientifolds
- Brane-Inspired Orientifold Field Theories
- Some Properties of Type I' String Theory
- Creation of Strings in D-particle Quantum Mechanics
- Mirage gauge coupling unification
- A note on the RG flow in (N=1, D=4) Supergravity and applications to Z_3 orbifold/orientifold compactification
- Probing Type I' String Theory Using D0 and D4-Branes
Cited by in corpus (50)
- Derivation of a Vacuum Refractive Index in a Stringy Space-Time Foam Model
- The Physics Programme Of The MoEDAL Experiment At The LHC
- Time Delays of Strings in D-particle Backgrounds and Vacuum Refractive Indices
- Robust Constraint on Lorentz Violation Using Fermi-LAT Gamma-Ray Burst Data
- Implications of a Stochastic Microscopic Finsler Cosmology
- Liouville Cosmology at Zero and Finite Temperatures
- Probing a Possible Vacuum Refractive Index with Gamma-Ray Telescopes
- Decoherence induced CPT violation and entangled neutral mesons
- On the Possibility of Superluminal Neutrino Propagation
- Stringy Space-Time Foam, Finsler-like Metrics and Dark Matter Relics
- Stringy-Running-Vacuum-Model Inflation: from primordial Gravitational Waves and stiff Axion Matter to Dynamical Dark Energy
- String Quantum Gravity, Lorentz-Invariance Violation and Gamma-Ray Astronomy
- Liouville Decoherence in a Model of Flavour Oscillations in the presence of Dark Energy
- Quantum-Gravity Induced Lorentz Violation and Dynamical Mass Generation
- Quantum-Gravity Decoherence Effects in Neutrino Oscillations: Expected Constraints from CNGS and J-PARC
- Methods of approaching decoherence in the flavour sector due to space-time foam
- CPT-Violating Leptogenesis induced by Gravitational Defects
- Starobinsky-Like Inflation in Dilaton-Brane Cosmology
- D-Foam Phenomenology: Dark Energy, the Velocity of Light and a Possible D-Void
- Towards a microscopic construction of flavour vacua from a space-time foam model
- Flavour Condensates in Brane Models and Dark Energy
- Lorentz Invariance Violation from String Theory
- CPT Violation and Decoherence in Quantum Gravity
- Torsion in string-inspired cosmologies and the universe dark sector
- Boundarylike behaviors of the resonance interatomic energy in a cosmic string spacetime
- Confronting MOND and TeVeS with strong gravitational lensing over galactic scales: an extended survey
- Light Speed Variation with Brane/String-Inspired Space-Time Foam
- Flavour-Condensate-induced Breaking of Supersymmetry in Free Wess-Zumino Fluids
- Condensate Structure of D-particle Induced Flavour Vacuum
- Comments on Ultra-High-Energy Photons and D-Foam models
- The D-material universe
- On the Role of Space-Time Foam in Breaking Supersymmetry via the Barbero-Immirzi Parameter
- Background Dependent Lorentz Violation: Natural Solutions to the Theoretical Challenges of the OPERA Experiment
- Singular lensing from the scattering on special space-time defects
- High-Energy gamma-ray Astronomy and String Theory
- Lorentz and CPT breaking in gamma-ray burst neutrinos from string theory
- Neutrino oscillations in a Robertson-Walker Universe with space time foam
- The Omega Effect as a Discriminant for Space-Time Foam
- Non-collider searches for stable massive particles
- Results and future plans of the MoEDAL experiment
- D-Flation
- Graviton propagation within the context of the D-material universe
- Effects on neutrino propagation in space-time foam of D-branes revisited
- Probes for String-Inspired Foam, Lorentz, and CPT Violations in Astrophysics
- A Novel Foamy Origin for Singlet Fermion Masses
- Constraints to Lorentz violation and ultrahigh-energy electrons in D-foamy space-times
- Dark Matter and Dark Energy via Non-Perturbative (Flavour) Vacua
- Finsler metrics and CPT
- Constraining D-foam via the 21-cm Line
- On Gauge Choice of Spherically Symmetric 3-Branes