- #1
pivoxa15
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I'm looking for absolute basic but respectable introductions to QFT and GR. Any choices?
What level of QM is recquired to learn QFT?
What level of QM is recquired to learn QFT?
QFT, or quantum field theory, is a theoretical framework that describes the behavior of particles and their interactions at the quantum level. GR, or general relativity, is a theory of gravity that explains how objects with mass interact with each other. QFT and GR are both theories that aim to explain different aspects of the natural world, and they are often seen as complementary theories.
QFT and GR are both mathematical models that describe the behavior of particles and gravity, respectively. QFT uses quantum mechanics to explain the behavior of particles, while GR uses the concept of spacetime curvature to explain gravity.
QFT and GR are both fundamental theories in physics, and they attempt to explain different aspects of the natural world. However, they are not unified theories, and there is currently no single framework that can fully explain both quantum mechanics and gravity.
In GR, spacetime is a four-dimensional continuum that combines the three dimensions of space with the dimension of time. It is considered to be a dynamic entity that can be curved and distorted by the presence of mass and energy. The curvature of spacetime is what we perceive as gravity.
While a strong understanding of mathematics is necessary to fully grasp the intricacies of QFT and GR, it is possible to gain a basic understanding of these theories without an extensive mathematical background. There are many resources available, such as popular science books and online lectures, that can provide simplified explanations of these theories for non-experts.