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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 ...
Hermann Nicolai, Kasper Peeters, Marija Zamaklar, "Loop Quantum Gravity: An Outside View," e-print available as hep-th/0501114. "Loop and Spin Foam Quantum Gravity: A Brief Guide for beginners" arXiv:hep-th/0601129 H. Nicolai and K. Peeters. Edward Witten, "Quantum Background Independence In String Theory," e-print available as hep-th/9306122.
The loop representation also provides a natural solution of the spatial diffeomorphism constraint, making a connection between canonical quantum gravity and knot theory. Surprisingly there were a class of loop states that provided exact (if only formal) solutions to Ashtekar's original (ill-defined) Wheeler–DeWitt equation .
The murders of John Forest "Johnny" Goosey and Stacy Marie Barnett [1] occurred on July 21, 2009, in the West Campus area of Austin, Texas, when a man (James Richard "Ricky" Thompson Jr.), who had two accomplices, shot to death two recent graduates from the University of Texas at Austin who originated from the Greater Houston area.
The distinguishing feature of LQC is the prominent role played by the quantum geometry effects of loop quantum gravity (LQG). In particular, quantum geometry creates a brand new repulsive force which is totally negligible at low space-time curvature but rises very rapidly in the Planck regime , overwhelming the classical gravitational ...
Causal dynamical triangulation (CDT), theorized by Renate Loll, Jan Ambjørn and Jerzy Jurkiewicz, is an approach to quantum gravity that, like loop quantum gravity, is background independent. This means that it does not assume any pre-existing arena (dimensional space) but, rather, attempts to show how the spacetime fabric itself evolves.
On May 1, 1992, Houston, then 20, entered his former high school armed with a rifle and shotgun. He killed three students and one teacher, ... 'A monster of a process': 1992 Lindhurst shooter ...
Carlo Rovelli (born 3 May 1956) is an Italian theoretical physicist and writer who has worked in Italy, the United States, France, and Canada. [1] He is currently Emeritus Professor at the Centre de Physique Theorique of Marseille in France, a Distinguished Visiting Research Chair at the Perimeter Institute, [2] core member of the Rotman Institute of Philosophy of Western University in Canada ...