Quantum gravity - Wikipedia
Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics.
What is quantum gravity? | Space
2024年7月10日 · Quantum gravity is an attempt to unite the incompatible worlds of quantum mechanics and gravity. It does so by modifying one or both theories to reconcile the models. Our...
[2412.08690] Lectures in Quantum Gravity - arXiv.org
2024年12月11日 · Formulating a quantum theory of gravity lies at the heart of fundamental theoretical physics. This collection of lecture notes encompasses a selection of topics that were covered in six mini-courses at the Nordita PhD school "Towards Quantum Gravity". The scope was to provide a coherent picture, from its foundation to forefront research, emphasizing …
Why should one believe that there is a need for a quantum theory of gravity? • Singularity theorems : Under very general conditions, it follows from general relativity (GR) that sin- gularities in spacetime are unavoidable [2].
A new theory of quantum gravity could explain the biggest …
2024年5月19日 · A new theory of quantum gravity, which attempts to unite quantum physics with Einstein's relativity, could help solve the puzzle of the universe's expansion, a theoretical paper suggests.
Quantum Gravity and Field Theory - MIT Physics
Holographic dualities give both a new perspective into quantum gravitational phenomena as encoded in quantum field theory, and a way to explore aspects of strongly coupled field theories using the gravitational dual.
The quantum theory of gravitation, effective field theories and …
2024年5月7日 · From the mid-1980s, string theory set up a possible framework to approach quantum gravity using a 'top-down' approach. The effective field theory approach to strong forces drove the...
What is Quantum Gravity? – Institute for Theoretical Physics
What is Quantum Gravity? According to our current knowledge, the foundations of physics rest on two guiding principles: General Relativity (GR) and Quantum Theory (QT). GR is Einstein’s theory of the gravitational force while QT is the cornerstone of Quantum Field Theory (QFT), the framework underlying elementary particle physics.
Quantum Gravity: The Quest for the Pixelation of Space - Caltech …
2021年11月29日 · Quantum gravity refers to a set of theories, including string theory, that seeks to unify the macroscopic world of gravity, governed by general relativity, with the microscopic world of quantum physics.
The Holy Grail of physics: The quest to find quantum gravity
2024年6月29日 · The potential to quantise space-time — not just gravity — is what sets quantum loop theory apart from string theory.