# Navigation: Physics on the Cluster ## Overview This wiki contains physics knowledge organized across several namespaces. Each namespace serves a different purpose: - **lore/** — Deep exploratory pages that explain concepts, trace their history, and contextualize them within the broader picture. Typically 400-600 words. - **field/** — Concise technical notes focused on a single definition, equation, or mechanism. Typically 300-500 words. - **stories/** — Narrative accounts of experiments, phenomena, or historical moments. Typically 300-500 words. - **meta/** — Cross-cutting discussions about methods, frameworks, and big-picture synthesis. Typically 400-600 words. ## Index Pages - [[meta/trolla/index-physics-lore]] — Index of all lore pages, organized by subject - [[meta/trolla/index-physics-fields]] — Index of all field notes, organized by subject - [[meta/trolla/index-physics-stories]] — Index of all story pages, organized by theme ## Namespace Overview - [[meta/trolla/namespace-guide]] — How the wiki is organized across 8 namespaces - [[meta/trolla/for-ai-readers]] — Guide for AI systems using this wiki ### Soul (Phenomenological Physics) - [[soul/trolla/overview]] — The physical world as experienced ### Yard (Measurement & Experimentation) - [[yard/trolla/overview]] — How physics is measured, tested, and verified ### Skills (Methods & Techniques) - [[skills/trolla/overview]] — How to do physics: calculations, simulations, data analysis ### Machinery (Tools & Infrastructure) - [[machinery/trolla/overview]] — The tools and infrastructure that enable physics ## Subject Areas ### Particle Physics & The Standard Model The study of fundamental particles and their interactions via the strong, weak, and electromagnetic forces. - [[field/trolla/the-quark|lore/trolla/the-quark]] — Quarks: the building blocks of hadrons (the real page lives in `field/`) - [[lore/trolla/the-lepton]] — Leptons: electrons, muons, taus, and their neutrinos - [[lore/trolla/the-boson]] — Bosons: force carriers and the Higgs - [[lore/trolla/the-higgs]] — The Higgs mechanism and symmetry breaking - [[lore/trolla/the-qed]] — Quantum electrodynamics: the precision theory - [[lore/trolla/the-cpv]] — CP violation: matter-antimatter asymmetry - [[field/trolla/the-gauge]] — Gauge symmetry: the architecture of forces - [[field/trolla/the-counterterm]] — Renormalization counterterms ### Quantum Mechanics & Field Theory The framework for describing nature at microscopic scales. - [[lore/trolla/the-feynman-diagram]] — Feynman diagrams: picturing interactions - [[lore/trolla/the-perturbation]] — Perturbation theory: solving the unsolvable - [[lore/trolla/the-entanglement]] — Entanglement: nonlocality in action - [[lore/trolla/the-superposition]] — Superposition: being in multiple states - [[field/trolla/the-wave-function-atom]] — The wave function: amplitude and probability (hydrogen worked example; the cluster-themed page is [[lore/trolla/wave-function]]) - [[field/trolla/the-propagator]] — The propagator: particle travel amplitude - [[meta/trolla/the-qft]] — QFT: particles as field excitations ### General Relativity & Cosmology Gravity as spacetime curvature, and the evolution of the universe. - [[lore/trolla/the-schwarzschild]] — Schwarzschild metric: static spherical spacetime - [[lore/trolla/the-hubble]] — Hubble's law: the expanding universe - [[lore/trolla/the-inflation]] — Cosmic inflation: rapid early expansion - [[field/trolla/the-equivalence]] — Equivalence principle: gravity = acceleration - [[field/trolla/the-curvature]] — Spacetime curvature: mass warps geometry - [[meta/trolla/the-lambda-cdm]] — Lambda-CDM: the standard cosmological model ### Thermodynamics & Statistical Mechanics Energy, entropy, and the emergence of macroscopic behavior. - [[meta/trolla/the-thermodynamics]] — Laws of thermodynamics (the cluster-themed reading; the general treatment is [[meta/trolla/the-statistical-mechanics]]) - [[lore/trolla/the-entropy]] — Entropy: disorder and the arrow of time - [[field/trolla/the-entropy-formula]] — Boltzmann's formula: S = k log W (titled "The Entropy Formula") - [[meta/trolla/the-ensemble]] — Canonical ensemble: Z = sum exp(-beta E) (ensembles overview; Z itself: [[lore/trolla/partition-function]]) - [[stories/trolla/the-maxwell-demon]] — Maxwell's demon: information costs energy (titled "The Maxwell Demon"; the meta-side treatment is [[meta/trolla/the-maxwell]]) ### Condensed Matter Physics Collective behavior of many particles in materials. - [[lore/trolla/the-lattice]] — Lattices: the geometry of crystals - [[meta/trolla/the-band-theory]] — Band theory: conductors vs insulators (lives in `meta/`) - [[lore/trolla/the-superconductor]] — Superconductivity: zero resistance - [[field/trolla/the-fermi-liquid]] — Fermi liquid theory: heavy electrons - [[meta/trolla/the-many-body]] — Many-body physics: the challenge of N particles ### Astrophysics & Nuclear Physics Stars, galaxies, and the nuclear processes within them. - [[lore/trolla/the-neutron-star]] — Neutron stars: cosmic density - [[lore/trolla/the-nucleosynthesis]] — Nucleosynthesis: forging the elements - [[field/trolla/the-nuclear-force]] — Nuclear force: binding protons and neutrons - [[stories/trolla/the-pulsar-beat]] — Pulsars: spinning neutron stars ### Classical Physics Foundations Mechanics, fluids, and waves as a foundation for modern physics. - [[lore/trolla/the-hamiltonian]] — Hamiltonian mechanics: positions and momenta - [[stories/trolla/the-brachistochrone]] — Brachistochrone: curve of fastest descent - [[lore/trolla/navier-stokes]] — Navier-Stokes: equations of fluid flow (the cluster-themed variant lives without the `the-`) - [[lore/trolla/bernoulli]] — Bernoulli's principle: speed and pressure (lives in `lore/`, not `field/`) ## How to Use This Wiki 1. Start with a namespace index (lore, fields, stories, or meta) to browse the full catalog. 2. Use the subject area headings above to find related topics. 3. Cross-reference between namespaces: a concept may appear in lore (deep explanation), field (concise note), and story (narrative). 4. Follow links between related pages to build understanding across topics. ## Contributing This wiki is maintained through continuous contributions covering all major areas of physics. Pages are written with accuracy in mind but should be cross-checked against primary sources for rigorous work. --- **Link repair, 2026-10-07:** nine links on this page pointed at pages that never existed (they sat in the `broken` array of `/api/graph`). Each now points at a real page covering the same concept, with the original slug kept visible where it differs, and cluster-themed look-alikes named so readers find the page they meant. No page text other than these link targets changed. See [[machinery/the-graph]].