Physics:Quantum field theory
From HandWiki Test
Quantum field theory is the framework that combines quantum mechanics, special relativity, and field concepts. In QFT, particles are excitations of fields, interactions are described by field couplings, and symmetries organize charges, forces, and conservation laws.[1][2]
Core idea
The field viewpoint replaces isolated particle pictures with states, modes, operators, and excitations. It is especially powerful when particle number can change.[3]
Use in quantum physics
Field concepts organize interactions, conservation laws, measurement outcomes, and effective descriptions across particle physics, optics, condensed matter, and cosmology.[4]
See also
Table of contents (84 articles)
Index
Composite matter
Sub-molecular
Full contents
1. Materials (6) Back to index
2. Matter (5) Back to index
3. Plasma and fusion physics (6) Back to index
4. Molecules (6) Back to index
5. Nuclear matter (6) Back to index
6. Atoms (7) Back to index
7. Particles (12) Back to index
8. Composite particles (12) Back to index
9. Fields (12) Back to index
10. Vacuum and spacetime (12) Back to index
References
- ↑ "Quantum field theory". https://en.wikipedia.org/wiki/Quantum_field_theory.
- ↑ Schwartz, Matthew D. (2014). Quantum Field Theory and the Standard Model. Cambridge University Press. ISBN 978-1-107-03473-0.
- ↑ Schwartz, Matthew D. (2014). Quantum Field Theory and the Standard Model. Cambridge University Press. ISBN 978-1-107-03473-0.
- ↑ Peskin, Michael E.; Schroeder, Daniel V. (1995). An Introduction to Quantum Field Theory. Addison-Wesley. ISBN 978-0-201-50397-5.
Author: Harold Foppele
Source attribution: Physics:Quantum field theory
