Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

 Type to find tags:
 commutator× 95 study the effect of applying two operators in succession. radioactivity× 95 The property of some materials by which individual atoms decay, emitting energy or particles often transforming into different elements in the process. statics× 95 Analysis of a system of bodies where all forces are in balance and there is no motion relative to a chosen reference frame. telescopes× 94 geometric-optics× 94 The subfield of optics in which light propagation is approximated in terms of rays. It mainly includes reflection and refraction on surfaces. biophysics× 93 coordinate-systems× 92 quantify location in space. dirac-equation× 92 A fully relativistic (Lorentz covariant) description, first put forward by Paul Dirac in 1928, of the first quantized, spin one half fermion with nonzero mass. Physical notions to do with this equatio… large-hadron-collider× 92 World's largest particle accelerator built by the CERN (European Organization for Nuclear Research) near the Franco-Swiss frontier near Geneva, Switzerland. It is designed to collide beams of protons… statistics× 92 rocket-science× 92 diffraction× 91 interference× 90 dimensional-analysis× 89 Dimensional analysis means to obtain results by analyzing the units in question, etc. DO NOT USE THIS TAG if your question is about degrees of freedom or spatial dimensions. feynman-diagram× 88 gauss-law× 88 A law in Classical Electromagnetism and Newtonian Gravity. classical-electrodynamics× 88 topology× 87 wave-particle-duality× 87 cosmological-inflation× 86 lie-algebra× 84 A vector space $\mathfrak{g}$ over some field $F$ and kitted with a bilinear, antisymmetric and Jacobi-identity-fulfilling product ("Lie Bracket" or "commutator"). In physics, most often arises as the… orbits× 82 Circular or elliptical motion caused by the gravitational force of one object on another; for instance, satellites moving around the Earth, or the planets moving around the sun. quantization× 80 Quantization refers to the procedure or methodology for replacing a classical system by a quantum system. If the question is about the quantized or discrete behavior of a phenomenon use the [tag:discr… light× 80 Electromagnetic waves, visible to the human eye if between about 400 and 700 nm in wavelength. elasticity× 80 topological-field-theory× 80 for topological field theory (Tft) and topological string theory (tst) questions. rotational-kinematics× 79 A tag for questions about rotational motion, including angular velocity and angular acceleration. quarks× 79 The quark model postulates that the hadrons such as protons and neutrons have an inner structure; quarks. dark-energy× 79 density× 79 defined as the mass per unit volume of a substance. information× 79 for questions on information theory applied to physics, especially in the fields of statistical mechanics and thermodynamics, the black hole information paradox, complexity of dynamical a… crystals× 78 causality× 78 fusion× 77 surface-tension× 77 Surface tension occurs due to the tendency of liquid molecules to favor their own kind. Surface tension is important in fluid multiphase systems typically at small length and velocity topological-order× 76 a new kind of order in quantum matter, which corresponds to pattern of long-range quantum entanglement. See http://en.wikipedia.org/wiki/Topological_order