A Momentous Arrow of Time
arXiv:0910.3200
Abstract
Quantum cosmology offers a unique stage to address questions of time related to its underlying (and perhaps truly quantum dynamical) meaning as well as its origin. Some of these issues can be analyzed with a general scheme of quantum cosmology, others are best seen in loop quantum cosmology. The latter's status is still incomplete, and so no full scenario has yet emerged. Nevertheless, using properties that have a potential of pervading more complicated and realistic models, a vague picture shall be sketched here. It suggests the possibility of deriving a beginning within a beginningless theory, by applying cosmic forgetfulness to an early history of the universe.
23 pages, 3 figures, Chapter contributed to "The Arrow of Time" Ed. L. Mersini-Houghton and R. Vaas (Springer-Verlag)
References in corpus (27)
- Quantum Nature of the Big Bang: Improved dynamics
- Anomaly freedom in perturbative loop quantum gravity
- Loop quantum gravity corrections to gravitational wave dispersion
- Hybrid Quantum Gowdy Cosmology: Combining Loop and Fock Quantizations
- Lattice refining loop quantum cosmology, anisotropic models and stability
- Gauge invariant cosmological perturbation equations with corrections from loop quantum gravity
- Quantum bounce and cosmic recall
- Quantum Gravity and Higher Curvature Actions
- Scalar and Vector Perturbations in Quantum Cosmological Backgrounds
- Non-marginal LTB-like models with inverse triad corrections from loop quantum gravity
- Dynamical coherent states and physical solutions of quantum cosmological bounces
- Effective Constraints for Relativistic Quantum Systems
- Cosmological vector modes and quantum gravity effects
- Lemaitre-Tolman-Bondi collapse from the perspective of loop quantum gravity
- Turning Big Bang into Big Bounce: I. Classical Dynamics
- Lattice Refining Loop Quantum Cosmology and Inflation
- The Observational Implications of Loop Quantum Cosmology
- Effective equations for isotropic quantum cosmology including matter
- Scalar Perturbations in Scalar Field Quantum Cosmology
- The Dark Side of a Patchwork Universe
- Lattice Refining LQC and the Matter Hamiltonian
- Covariant Effective Action for Loop Quantum Cosmology from Order Reduction
- Recollapsing quantum cosmologies and the question of entropy
- Comment on "Quantum bounce and cosmic recall" [arXiv:0710.4543]
- Reply to `Comment on "Quantum Bounce and Cosmic Recall"' [arXiv:0811.2790]
- CP Violation and Arrows of Time Evolution of a Neutral or Meson from an Incoherent to a Coherent State
- Bouncing Cosmologies