[05] Quantum Field Theory

Question 1

What is Quantum Field Theory?

Answer 1

It extends quantum mechanics to systems with an infinite number of degrees of freedom, treating the field as a quantized system with field operators at each point of space-time

Question 2

List the main topics of study in Quantum Field Theory

Answer 2

• Particle creation and annihilation
• Feynman diagrams
• Quantum electrodynamics
• Quantum chromodynamics

Question 3

What does particle creation and annihilation mean in Quantum Field Theory?

Answer 3

It refers to the process by which particles and antiparticles (pair) are created out of energy, or destroyed to release energy

Question 4

What are Feynman diagrams in Quantum Field Theory?

Answer 4

They are graphical representations of the mathematical expressions describing the behavior and interaction of particles

Question 5

What is Quantum Electrodynamics (QED) in Quantum Field Theory?

Answer 5

It is the theory of the electromagnetic interaction, describing how light and matter interact

Question 6

What is Quantum Chromodynamics (QCD) in Quantum Field Theory?

Answer 6

It is the theory of the strong interaction, describing how quarks and gluons interact