What is quantum field theory?

Quantum field theory marries the ideas of other quantum theories to depict all particles as “excitations” that arise in underlying fields.

David Tong -- What is Quantum Field Theory?

Quantum Field Theory and Applications – Nova Science Publishers

What Is Quantum Field Theory and Why Is It Incomplete? — Steven

Quantum Field Theory Kavli IPMU-カブリ数物連携宇宙研究機構

Quantum Field Theory: From Basics to Modern Topics (Hardcover)

Quantum Field Theory for Quantum Finance

Gravity and Electric Charges: Attraction and Repulsion

David Tong -- What is Quantum Field Theory?

Quantum Field Theory (Dover Books on Physics) (Paperback)

So is the universe made of tiny springs, or isn't it?”

In the field approach to quantum field theory, the quantum state can be