random fluctuations

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• Random error — Random errors are errors in measurement that lead to measurable values being inconsistent when repeated measures of a constant attribute or quantity are taken. The word random indicates that they are inherently unpredictable, and have null… …   Wikipedia

• Random matrix — In probability theory and mathematical physics, a random matrix is a matrix valued random variable. Many important properties of physical systems can be represented mathematically as matrix problems. For example, the thermal conductivity of a… …   Wikipedia

• random walk — 1. Statistics. the path taken by a point or quantity that moves in steps, where the direction of each step is determined randomly. 2. Physics. the tendency of particles in random motion to achieve a net displacement or to drift in a particular… …   Universalium

• Hardware random number generator — This SSL Accelerator computer card uses a hardware random number generator to generate cryptographic keys to encrypt data sent over computer networks. In computing, a hardware random number generator is an apparatus that generates random numbers… …   Wikipedia

• Gaussian random field — A Gaussian random field is a random field involving Gaussian probability density functions of the variables. The initial conditions of physical cosmology generated by quantum mechanical fluctuations during cosmic inflation are thought to be a… …   Wikipedia

• Timeline of thermodynamics, statistical mechanics, and random processes — A timeline of events related to thermodynamics, statistical mechanics, and random processes. Ancient times *c. 3000 BC The ancients viewed heat as that related to fire. The ancient Egyptians viewed heat as related to origin mythologies. One… …   Wikipedia

• Shot noise — Photon noise simulation. Shot noise is a type of electronic noise that may be dominant when the finite number of particles that carry energy (such as electrons in an electronic circuit or photons in an optical device) is sufficiently small so… …   Wikipedia

• Real Business Cycle Theory — (or RBC Theory) is a class of macroeconomic models in which business cycle fluctuations to a large extent can be accounted for by real (in contrast to nominal) shocks. (The four primary economic fluctuations are secular (trend), business cycle,… …   Wikipedia

• radiation measurement — ▪ technology Introduction       technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement.       The term ionizing radiation refers to those… …   Universalium

• Noise (electronics) — Electronic noise [1] is a random fluctuation in an electrical signal, a characteristic of all electronic circuits. Noise generated by electronic devices varies greatly, as it can be produced by several different effects. Thermal noise is… …   Wikipedia

• Boltzmann brain — A Boltzmann brain is a hypothesized self aware entity which arises due to random fluctuations out of a state of chaos. The idea is named for physicist Ludwig Boltzmann (1844 1906), who had advanced an idea that the known universe arose as a… …   Wikipedia