Physics Documentation Hub
The fundamental laws that govern matter, energy, space, and time — from falling apples to the quantum vacuum.
This section is a reference wiki for physics at the undergraduate-to-graduate level. Each topic page states the core ideas, develops the mathematics, and connects the formalism to experiment and to current research; longer topics are split into a hub page with focused subpages. The full page index below lists every page in the section.
Browse by Topic
Classical Physics
Physics at everyday scales and speeds, and the statistical bridge from microscopic to macroscopic.
Classical Mechanics
Newton's laws, Lagrangian and Hamiltonian mechanics, rigid bodies, oscillations, and chaos.
Fluid Mechanics
Navier-Stokes, the Reynolds number, boundary layers, shocks, turbulence, and the Millennium Problem.
Thermodynamics
Heat, work, entropy, the four laws, thermodynamic potentials, and engines.
Statistical Mechanics
Ensembles, partition functions, quantum statistics, and phase transitions.
Spacetime and Gravity
Quantum Physics
The quantum theory of particles and fields, and the many-body and high-energy frontiers built on it.
Quantum Mechanics
States and operators, measurement, entanglement and Bell tests, and quantum computing.
Quantum Field Theory
Quantization, gauge theories and the Standard Model, renormalization, and modern frontiers.
Condensed Matter
Crystals, phonons, metals and magnetism, superconductivity, and topological phases.
String Theory
Strings, branes, dualities, AdS/CFT, and the search for quantum gravity.
Methods
How the Topics Connect
Each field builds on, generalizes, or supplies limits of the others. Solid arrows point from a theory to one that builds on or generalizes it; dashed arrows mark computational methods, which support every field.
graph TD
CM["Classical Mechanics"]
FM["Fluid Mechanics"]
TH["Thermodynamics"]
SM["Statistical Mechanics"]
SR["Special Relativity"]
GR["General Relativity"]
QM["Quantum Mechanics"]
QFT["Quantum Field Theory"]
CMP["Condensed Matter"]
ST["String Theory"]
COMP["Computational Physics"]
CM --> FM
CM --> SM
TH --> SM
SM --> FM
CM --> SR
SR --> GR
CM --> QM
QM --> QFT
SR --> QFT
SM --> CMP
QM --> CMP
QFT --> CMP
QFT --> ST
GR --> ST
COMP -.-> FM
COMP -.-> QM
COMP -.-> CMP
Some links run in both directions in practice: the renormalization group was developed jointly in particle physics and critical phenomena, and ideas such as the Higgs mechanism, anomalies, and topological order pass freely between quantum field theory and condensed matter.
Suggested Reading Paths
| Goal | Path |
|---|---|
| Core undergraduate sequence | Classical Mechanics → Thermodynamics → Quantum Mechanics → Statistical Mechanics → Special Relativity |
| Continuum physics | Classical Mechanics → Oscillations & Waves → Fluid Mechanics → Finite Elements & CFD |
| Particle physics | Quantum Mechanics → QFT → Gauge Theories & the Standard Model → Renormalization → Modern Frontiers |
| Gravity and cosmology | Special Relativity → General Relativity → Black Holes → Cosmology → Toward Quantum Gravity |
| Quantum matter | Statistical Mechanics → Condensed Matter → Emergent Phases → Disorder & Localization |
All Physics Pages
Related Sections
- Physics Formulas & Constants — CODATA constants, key equations, and unit conversions.
- Quantum Computing — quantum mechanics applied to information processing.
- Quantum Algorithms Research — advanced quantum information and algorithms.
- AI Mathematics — statistical-mechanics methods in machine learning.
- Advanced Research Topics — graduate-level mathematics and theoretical computer science.
Corrections and suggestions are welcome on the GitHub repository.