quantum noise

quantum noise
in radiology, randomness of image or projection measurements owing to defective counting of the number of photons emitted.

Medical dictionary. 2011.

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  • Quantum noise — is uncertainty of some physical quantity due to its quantum origin.In the case of number of particles (photons or electrons), the quantum noise is also called shot noise. Most optical communications use amplitude modulation. In this case, the… …   Wikipedia

  • quantum noise limited detector — kvantinio triukšmo ribotas detektorius statusas T sritis radioelektronika atitikmenys: angl. quantum noise limited detector vok. quantenrauschenbegrenzter Detektor, m rus. детектор, ограниченный квантовым шумом, m pranc. détecteur à sensibilité… …   Radioelektronikos terminų žodynas

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  • Quantum error correction — is used in quantum computing to protect quantum information from errors due to decoherence and other quantum noise. Quantum error correction is essential if one is to achieve fault tolerant quantum computation that can deal not only with noise on …   Wikipedia

  • Quantum optics — is a field of research in physics, dealing with the application of quantum mechanics to phenomena involving light and its interactions with matter. History of quantum optics Light is made up of particles called photons and hence inherently is… …   Wikipedia

  • Quantum amplifier — In physics, the term quantum amplifier may refer to any device, which use some non classical (quantum) effects for amplification of signal. In this sense, the active element of an optical laser can be considered as quantum amplifier.The weak… …   Wikipedia

  • quantum mottle — mottle caused by quantum noise …   Medical dictionary

  • Quantum 1/f noise — is an intrinsic part of quantum mechanics. It comes from scattering of different particles of one another in solid state physics. Quantum 1/f noise is a source of Chaos in such systems.Other noise data sets1/f noise has also recently been… …   Wikipedia

  • Quantum decoherence — Quantum mechanics Uncertainty principle …   Wikipedia

  • Quantum imaging — [ [http://www.iop.org/EJ/abstract/1464 4266/4/3/372 Quantum Imaging] , L A Lugiato et al 2002 J. Opt. B: Quantum Semiclass. Opt. 4 S176 S183.] , [ [http://www.informaworld.com/openurl?genre=issue issn=0950 0340 volume=53 issue=5 Special Issue on… …   Wikipedia

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