Fundamental length scale of quantum spacetime foam

Abstract

It is argued that the fundamental length scale for the quantum dynamics of spacetime need not be equal to the Planck length. Possibly, this new length scale is related to a nonvanishing cosmological constant or vacuum energy density.

10 pages with revtex4, v5: published version

References in corpus (8)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• The World as a Hologram
• Background Independent Quantum Gravity: A Status Report
• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• Discreteness of area and volume in quantum gravity
• Quantum gravity and minimum length
• Sakharov's induced gravity: a modern perspective
• Bounds on length scales of classical spacetime foam models

Cited by in corpus (22)

• Self-tuning vacuum variable and cosmological constant
• Ultrahigh-energy cosmic-ray bounds on nonbirefringent modified-Maxwell theory
• Quantization of the Myers-Pospelov model: the photon sector interacting with standard fermions as a perturbation of QED
• The Photon Sector in the Quantum Myers-Pospelov Model: An improved description
• Metric fluctuations and decoherence
• Cosmic Rays and the Search for a Lorentz Invariance Violation
• Regularized big bang singularity
• Fundamental length in quantum theories with PT-symmetric Hamiltonians
• Metric fluctuations and the Weak Equivalence Principle
• Nonsingular bouncing cosmology from general relativity
• Can the fluctuations of the quantum vacuum solve the cosmological constant problem?
• Fundamental Constants, Entropic Gravity and Nonextensive Equipartition Theorem
• Nonsingular bouncing cosmology from general relativity: Scalar metric perturbations
• Newtonian gravity as an entropic force: Towards a derivation of G
• Note on a new fundamental length scale $l$ instead of the Newtonian constant $G$
• Propagation of cosmic rays in the foam-like Universe
• Fluctuations of spacetime and holographic noise in atomic interferometry
• Small-Scale Structure of Spacetime: Bounds and Conjectures
• Newton's gravitational coupling constant from a quantum of area
• Deformed Quantum Field Theory, Thermodynamics at Low and High Energies, and Gravity. I
• UHECR bounds on Lorentz violation in the photon sector
• Future limits on isotropic Lorentz violation in the photon sector from UHECRs and TeV gamma rays