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Loop quantum gravity (LQG) is a theory of quantum gravity that incorporates matter of the Standard Model into the framework established for the intrinsic quantum gravity case. It is an attempt to develop a quantum theory of gravity based directly on Albert Einstein 's geometric formulation rather than the treatment of gravity as a mysterious ...
Apr 9, 2021 · A report by Abhay Ashtekar and Eugenio Bianchi on the main ideas and recent advances of loop quantum gravity (LQG), a leading approach to unify general relativity and quantum physics. LQG focuses on the quantum nature of spacetime geometry and its implications in extreme regimes.
- Abhay Ashtekar, Eugenio Bianchi
- arXiv:2104.04394 [gr-qc]
- 2021
May 20, 2023 · A transcript of Carlo Rovelli's lectures on Loop Quantum Gravity, given in Marseille in 2018, with references and figures. Learn about the basics of LQG, its history, and its applications from the book by Rovelli and Vidotto.
Oct 1, 1997 · A comprehensive overview of loop quantum gravity, a non-perturbative and background independent quantization of general relativity, with its physical predictions and open problems. The paper covers mathematical foundations, geometrical spectra, black hole entropy, spacetime foam and dynamics.
- Carlo Rovelli
- arXiv:gr-qc/9710008
- 1997
Feb 26, 2024 · A lecture note on the history and challenges of quantum gravity, with a focus on loop quantum gravity. The author presents a broad perspective on the dual role of the metric, the canonical and covariant approaches, and the conceptual problems of space-time and causality.
While GR comprehends gravity geometrically, LQG (in short, loop gravity) provides quantum picture of space-time with the aid of quantum theory. Therefore, LQG is also known as quantum geometry as it quantizes geometry and promotes geometric operators or geometric observables such as area and volume as quantum operators.
3 days ago · Loop Quantum Gravity (LQG) 21,22,23,24,25 is one of the characteristic features of quantum gravity theories which are completely non-perturbative and explicit background independent in nature 26.
