# Opinions on **Quantum field theory**

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"Relativistic quantum field theory" redirects here. For other uses, see Relativity.

In theoretical physics, **quantum field theory** (**QFT**) is a theoretical framework for constructing quantum mechanical models of subatomic particles in particle physics and quasiparticles in condensed matter physics. A QFT treats particles as excited states of an underlying physical field, so these are called field quanta.

In QFT, quantum mechanical interactions between particles are described by interaction terms between the corresponding underlying fields.

In the image below, you can see a graph with the evolution of the times that people look for Quantum field theory. And below it, you can see how many pieces of news have been created about Quantum field theory in the last years.

Thanks to this graph, we can see the interest Quantum field theory has and the evolution of its popularity.

# What do you think of Quantum field theory?

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