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Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
3,436 results for "mtDNA haplogroup B" — page 157 of 172
ZA_1_03 — Quantum Chromodynamics: The Strong Nuclear Force
Quantum chromodynamics (QCD) is the theory of the strong nuclear force — the interaction that binds quarks into protons and neutrons and holds atomic nuclei together. Unlike electromagnetism, the strong force is mediated
ZA_1_24 — Quantum Zeno Effect
The quantum Zeno effect (QZE) is the remarkable phenomenon whereby frequent measurements of a quantum system can inhibit its evolution — effectively "freezing" a quantum state by repeatedly confirming that it has not yet
ZA_1_19 — Loop Quantum Gravity
Loop quantum gravity (LQG) is one of two leading candidate theories (alongside string theory) for unifying general relativity with quantum mechanics — the central unsolved problem of theoretical physics. [KEY FINDING] LQ
ZA_1_08 — Quantum Teleportation & Non-Local Transfer
Quantum teleportation — experimentally verified transfer of quantum states without physical traversal — is Tier 1 established physics (Bennett 1993, Bouwmeester 1997, Nobel 2022). Claims that this mechanism explains anci
ZA_1_21 — Quantum Eraser Experiments
The quantum eraser experiment is one of the most striking demonstrations of the relationship between information and quantum interference. It reveals that the presence or absence of which-path information — rather than a
ZA_1_10 — Feynman Diagrams: The Visual Language of Quantum Field Theory
Feynman diagrams — the pictorial representations of mathematical expressions describing the behavior of subatomic particles — are among the most powerful and iconic tools in theoretical physics, invented by Richard Feynm
ZA_5_10 — Superfluidity: Quantum Mechanics at the Macroscopic Scale
Superfluidity — the macroscopic quantum phenomenon in which a fluid flows with zero viscosity (no resistance to flow) and exhibits extraordinary properties including frictionless flow through narrow channels, the ability
ZA_5_09 — Quantum Simulation: Programming Nature to Model Nature
Quantum simulation — using one controllable quantum system to emulate the behavior of another, less tractable quantum system — was proposed by Richard Feynman in 1982 as a natural solution to the fundamental difficulty o
ZA_5_21 — Quantum Computing: Architectures and Milestones
Quantum computing exploits the quantum mechanical phenomena of superposition, entanglement, and interference to perform calculations that are intractable for classical computers. The concept was proposed by Richard Feynm
ZA_5_05 — Quantum Error Correction: Protecting Quantum Information from Decoherence
Quantum error correction (QEC) — the encoding of quantum information across multiple physical qubits to protect it from decoherence and operational errors — is widely regarded as the critical enabling technology for larg
ZA_5_11 — Quantum Chaos: Where Classical Chaos Meets Quantum Mechanics
Quantum chaos investigates the quantum-mechanical signatures of systems whose classical counterparts exhibit chaotic behavior — addressing the profound question of how quantum mechanics, which is fundamentally linear, en
ZA_5_20 — Squeezed States and Optomechanics
Squeezed states of light and cavity optomechanics represent two of the most important frontiers in applied quantum physics — technologies that exploit quantum mechanical effects to surpass classical measurement limits an
ZA_5_13 — Anyons and Fractional Quantum Hall Effect
Anyons are quasiparticles that exist exclusively in two-dimensional systems and obey quantum statistics intermediate between bosons and fermions — when two identical anyons are exchanged, the wave function acquires a pha
ZA_5_01 — Entropy, Information, and the Arrow of Time
Entropy — the measure of disorder or the number of microstates consistent with a macrostate — stands as one of the most fundamental concepts in all of physics. Ludwig Boltzmann's statistical formulation (S = k_B ln Ω) pr
ZA_4_02 — Thermodynamics: Laws, Heat Engines, and the Nature of Energy
Thermodynamics — the science of energy, heat, and work — is one of the most universal and robust frameworks in all of physics. Its four laws govern everything from steam engines to black holes, from chemical reactions to
ZA_4_03 — The Electromagnetic Spectrum: From Radio Waves to Gamma Rays
The electromagnetic spectrum encompasses all forms of electromagnetic radiation — from radio waves with wavelengths of kilometers to gamma rays with wavelengths smaller than atomic nuclei. Unified by James Clerk Maxwell'
ZA_4_08 — Photon Physics and the Nature of Light
The photon — the quantum of the electromagnetic field — is simultaneously one of the most familiar and most enigmatic particles in physics. Planck's introduction of energy quanta (E = hf, 1900) and Einstein's explanation
ZA_4_19 — Cryogenics and Low-Temperature Physics
Cryogenics — the production and behavior of materials at temperatures below ~120 K (−153 °C) — began with Heike Kamerlingh Onnes (Leiden), who first liquefied helium on July 10, 1908, reaching 4.2 K and opening the ultra
ZA_4_26 — Luminiferous Aether: The Medium That Wasn't, and the Physics It Created
Luminiferous aether — from the Latin lumen (light) and Greek aithēr (upper sky) — was the hypothetical medium through which light was thought to propagate. Just as sound requires air, 19th-century physics held that light
ZA_4_13 — Quantum Spin Liquids
A quantum spin liquid (QSL) is an exotic magnetic state of matter in which quantum fluctuations prevent the localized magnetic moments (spins) in a material from ordering into any conventional pattern — no ferromagnetism
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