Loop quantum cosmology: an overview

By Abhay Ashtekar. 2008

230 citations recorded by the source corpus.

A brief overview of loop quantum cosmology of homogeneous isotropic models is presented with emphasis on the origin of and subtleties associated with the resolution of big bang and big crunch singularities. These results bear out the remarkable intuition that John Wheeler had. Discussion is organized at two levels. The the main text provides a bird’s eye view of the subject that should be accessible to non-experts. Appendices address conceptual and technical issues that are often raised by experts in loop quantum gravity and string theory.

Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/91ef2d7069c58145c590cbe75923603ce4064f68

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In Atomic and Molecular Physics, and Optics

In Statistical and Nonlinear Physics

Citations in the corpus

Loop quantum cosmology: a status report (2011, background): “Details, particularly on the early developments, can be found in [112], a short summary for cosmologists can be found in [113], for general relativists in [114] and for beginning researchers in [115, 116].”
Loop Quantum Gravity (2003, background): “Started by Martin Bojowald and largely developed by Abhay Ashtekar, Parampreet Singh, Alejandro Corichi and their collaborators, loop cosmology is an application of the basic ideas of loop gravity to the description of the physics of the universe at very early time [123, 124].”
Quantum extension of the Kruskal spacetime (2018, unknown): “[38] for a discussion about these two schemes).”
A new look at loop quantum gravity (2010, unknown): “Compare with canonical Loop Quantum Cosmology [62, 63].”
Zakopane lectures on loop gravity (2011, background): “] Compare with canonical Loop Quantum Cosmology [127, 136].”
Towards spinfoam cosmology (2010, result): “It can be shown that this choice reproduces the symplectic structures of the LQC variables5 (c, p) or the one of the LQG variables (Eℓ, Uℓ).”
Loop quantum cosmology of Bianchi I models (2009, background): “Thus, as in the isotropic case, one avoids the ultraviolet-infrared tension [21] because the quantum geometry effects are extremely strong in the Planck regime but die off extremely quickly as the system exits this regime.”