PHYSICS

The Wave (Eigen) Function

Wave functions are essential in quantum physics, quantum chemistry, and quantum ...

Total Scattering Cross-Section in Quantum and Particle ...

The total scattering cross-section measures the overall probability of a particl...

Energy and Momentum Operators in Quantum Mechanics

In quantum mechanics, operators are mathematical entities that act on wave funct...

Perturbation Theory

Perturbation theory is a fundamental mathematical method in quantum mechanics us...

A Semi-Classical Look at the Zeeman Effect

The Zeeman Effect describes the splitting of atomic energy levels when an atom i...

The Stark Effect in Quantum Mechanics

The Stark Effect refers to the splitting and shifting of atomic or molecular ene...

Dirac Equation for Free Particles

The Dirac equation for free particles is a cornerstone of relativistic quantum m...

Symmetric and Anti-Symmetric Wave Functions

In quantum mechanics, wave functions (Ψ) describe the complete quantum state of ...

Rigid Rotator

The rigid rotator model is a fundamental concept in both classical mechanics and...

Scattering Amplitude

The scattering amplitude is a key concept in quantum mechanics and particle phys...

Representation Theory and Identical Particles in Quantu...

Representation theory plays a crucial role in quantum mechanics, offering a math...

Partial Wave Analysis

Partial Wave Analysis (PWA) is a fundamental method in quantum mechanics and par...

Particle in a Box

The Particle in a Box model is a cornerstone of quantum mechanics, describing ho...

Operator Formalism

The Operator Formalism is a fundamental framework in physics and quantum mechani...

Orthonormal Normalisation Technique

The Orthonormal Normalisation Technique is a fundamental method in physics and m...

Negative Energy States – Concepts, Dirac’s Theory, and ...

Negative energy states represent one of the most fascinating ideas in modern phy...

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