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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 ...
Loop quantum gravity (LQG) thus became related to topological quantum field theory and group representation theory. In 1994, Rovelli and Smolin showed that the quantum operators of the theory associated to area and volume have a discrete spectrum. [11] Work on the semi-classical limit, the continuum limit, and dynamics was intense after this ...
Lee Smolin: one of the founders and major contributors to loop quantum gravity. Rafael Sorkin: physicist, primary proponent of the causal set approach to quantum gravity. Andrew Strominger: physicist who works on string theory. Leonard Susskind: physicist who is considered to be one of the three fathers of string theory.
Chegg stock ( CHGG) plummeted on Tuesday as the rise of free artificial intelligence tools has stunted growth at the online education company. Late Monday, the company said in its first quarter ...
China on Friday launched a lunar probe to land on the far side of the moon and return with samples that could provide insights into differences between the less-explored region and the better ...
In a recent national NBC News poll, which asked voters to measure their interest in the 2024 election on a 1-10 scale, only 27% of voters 18-29 years old answered a “9” or “10,” compared ...
A tin-based perovskite solar cell is a special type of perovskite solar cell, based on a tin perovskite structure (ASnX 3, where 'A' is a 1+ cation and 'X' is a monovalent halogen anion ). As a technology, tin-based perovskite solar cells are still in the research phase, and are even less-studied than their counterpart, lead-based perovskite ...
Yang Shao-Horn is a Chinese American scholar, Professor of Mechanical Engineering [1] [3] [4] and Materials Science and Engineering [5] and a member of Research Laboratory of Electronics at the Massachusetts Institute of Technology. She is known for research on understanding and controlling of processes for storing electrons in chemical bonds ...