How work AC/DC current in Quantum Field Theory
As with your other thread, the answer to this question is going to start with a very thick book, not a post in an internet forum. (For an example of the sort of book we're talking about, try https://web.physics.ucsb.edu/~mark/ms-qft-DRAFT.pdf - and that's just to get started).arnoldcena3000 said:How work AC/DC current in Quantum Field Theory
Quantum Field Theory (QFT) is a theoretical framework used to describe the interactions between particles in the subatomic realm. It combines the principles of quantum mechanics and special relativity to explain the behavior of particles and fields.
QFT helps to explain the behavior of electric fields and their interaction with charged particles. It also provides a mathematical framework for understanding the quantum nature of electrons and their role in generating electric current.
Virtual particles are an essential component of QFT as they represent the fluctuations of quantum fields. These fluctuations can result in the creation and annihilation of particles, which play a crucial role in the interactions between particles and fields.
QFT has led to significant advances in modern technology, particularly in the fields of electronics and computing. Understanding the behavior of particles and fields at the quantum level has allowed for the development of technologies such as transistors, lasers, and computer chips.
While QFT has been successful in explaining many phenomena, there are still some unresolved issues, such as the unification of quantum mechanics with general relativity. Additionally, the behavior of particles and fields in extreme conditions, such as in black holes, is still not fully understood.