A Cuscuton Representation of the Loop Quantum Cosmology Bounce

arXiv:2609.35222 · gr-qc, astro-ph.CO, hep-th · Submitted 2026-09-28 · Read on arXiv

gr-qc, astro-ph.CO, hep-th

Submitted: 2026-09-28

Updated: 2026-09-28

Terminology

• Loop Quantum Cosmology — 12× in this paper
• Holonomy — 6× in this paper · explained in 2 episodes
• Quantization — 5× in this paper · explained in 12 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Effective Hamiltonian — 2× in this paper · explained in 2 episodes
• Hybrid Approach — 2× in this paper · explained in 4 episodes
• Anisotropy — 1× in this paper · explained in 3 episodes
• Generalization — 1× in this paper · explained in 13 episodes
• Inverse Problem — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Quantum Nature of the Big Bang: Improved dynamics
• Loop Quantum Cosmology: A Status Report
• Cuscuton: A Causal Field Theory with an Infinite Speed of Sound
• Cuscuton and low energy limit of Horava-Lifshitz gravity
• Dark Energy, Black Hole Entropy, and the First Precision Measurement in Quantum Gravity
• Covariant Effective Action for Loop Quantum Cosmology a la Palatini
• Hamiltonian Formulation of Palatini f(R) theories a la Brans-Dicke
• Covariant Effective Action for Loop Quantum Cosmology from Order Reduction
• A diffeomorphism invariant family of metric-affine actions for loop cosmologies
• Cuscuton gravity as a classically stable limiting curvature theory
• Covariant single-field formulation of effective cosmological bounces
• Resolving Cosmological Singularities
• Effective loop quantum cosmology as a higher-derivative scalar-tensor theory
• Limiting curvature mimetic gravity and its relation to Loop Quantum Cosmology
• Limiting curvature mimetic gravity for group field theory condensates
• Cosmological perturbations in mimetic Horndeski gravity
• Is limiting curvature mimetic gravity an effective polymer quantum gravity?
• Theories with limited extrinsic curvature and a nonsingular anisotropic universe
• Hamiltonian analysis of the cuscuton
• Effective Cuscuton Theory

Related papers

• Tests of General Relativity with Einstein Telescope
• Unitary quantum matter-bounce in a universe with a positive cosmological constant
• Quasi-pole quintessential inflation in metric-affine gravity
• Dynamical tidal response of neutron stars: From effective field theory to gravitational waveforms
• Limits of the Rastall--Einstein Equivalence: Matter-Action Compatibility, FLRW Dynamics, and Exceptional Sectors
• Boson star-black hole binaries: initial data and head-on collisions