Best Field Theory
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Maxwell's equations are a set of four fundamental equations that describe the behavior of electric and magnetic fields and their interactions with matter, unifying electricity, magnetism, and light.
Noether's theorem demonstrates a fundamental relationship in physics: for every continuous symmetry in a physical system, there exists a corresponding conserved quantity, like energy from time translation symmetry.
Quantum Electrodynamics (QED) is the quantum field theory describing light and matter interactions, accurately predicting electromagnetic phenomena by treating photons as force-carrying particles exchanged between charged entities.
The Standard Model is a theoretical framework describing fundamental particles and forces—electromagnetic, weak, and strong—excluding gravity, and categorizing them into quarks, leptons, and bosons.
The principle of least action states that the path a physical system takes between two points in time minimizes a quantity called "action," which is related to energy and time.
Lorentz invariance dictates that the laws of physics remain unchanged for all observers in uniform motion relative to one another, reflecting the symmetry between different inertial frames of reference.
The path integral formulation of quantum mechanics calculates probabilities by summing contributions from all possible paths a particle could take between two points in spacetime.
Spontaneous symmetry breaking occurs when a system's underlying laws possess inherent symmetries that are not apparent in its ground state or observed behavior.
Quantum Chromodynamics (QCD) describes the strong force governing interactions between quarks and gluons, binding them into hadrons like protons and neutrons within atomic nuclei.
The Casimir effect is a physical force arising from quantum fluctuations in the vacuum between closely spaced conductive plates, resulting in an attractive pressure due to restricted virtual particle wavelengths.
The Klein-Gordon equation is a relativistic wave equation for spin-0 particles, incorporating special relativity and predicting negative probability densities which are reinterpreted as antiparticles.
