Theoretical

Physics.

Theoretical Physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena.

Overview

The advancement of science generally depends on the interplay between experimental studies and theory. In some cases, theoretical physics adheres to standards of mathematical rigor while giving little weight to experiments and observations. For example, while developing special relativity, Albert Einstein was concerned with the theoretical implications rather than the observational evidence of the theory.

Fields of Theoretical Physics

Theoretical physics can be divided into several distinct fields, each of which has its own set of techniques and specialized topics. These fields include:

• Quantum mechanics: This is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles.
• Statistical mechanics: This branch of theoretical physics uses probability theory to study the average behaviour of a mechanical system, where the state of the system is uncertain.
• Particle physics: This is a branch of physics that studies the nature of particles that constitute matter and radiation.

Notable Theoretical Physicists

Many of the great scientists of the past were theoretical physicists, including Isaac Newton, Albert Einstein, and Niels Bohr. These individuals made significant contributions to our understanding of the physical world.

See Also

• Physics
• Quantum mechanics
• Statistical mechanics
• Particle physics