Quantum Theory vs Particle Physics | Aspiring Physicist

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Quantum theory is a fundamental framework in physics that describes the behavior of matter and energy at the smallest scales, while particle physics specifically focuses on the study of subatomic particles and their interactions. Although particle physics relies on principles of quantum theory, it is a narrower field that deals with the fundamental constituents of matter. Quantum theory encompasses a wide range of phenomena, including wave-particle duality and quantum entanglement, which are not limited to particle physics. Understanding quantum theory is essential for aspiring physicists, as it underpins many areas of research. The distinction between the two fields is crucial for anyone pursuing a career in physics.
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I am an aspring physicist, and I would like to know the difference between quantum theory and particle physics.

Are they similar?
 
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Quantum theory, which is required for most disciplines or sub-fields in physics, is a much more broad area of physics than particle physics.
 

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