Quantum electronics Quantum electronics In physics, a Coulomb blockade, named after Charles-Augustin de Coulomb, is the increased resistance at small bias voltages of an electronic device comprising at least one low- capacitance tunnel junction. ...more on Wikipedia about "Coulomb blockade"
The Giant Magnetoresistance Effect (GMR) is a quantum mechanical effect observed in thin film structures composed of alternating ferromagnetic and nonmagnetic metal layers. ...more on Wikipedia about "Giant magnetoresistive effect"
A Quantum Dot, also called a semiconductor nanocrystal, is a semiconductor crystal whose size is on the order of a few nanometers to a few hundred nanometers. These quantum dots confine electrons, holes, or electron-hole pairs (so-called excitons) to zero dimensions (Compare to quantum wires (confined to a line) and quantum wells (confined to a planar region)) to a region on the order of the electrons' de Broglie wavelength. This confinement leads to discrete quantized energy levels and to the quantization of charge in units of the elementary electric charge e. Quantum Dots are particularly significant for optical applications due to their theoretically high quantum yield. Quantum Dots have also been suggested as implementations of a qubit for quantum information processing. ...more on Wikipedia about "Quantum dot"
Quantum electrodynamics (QED) is a relativistic quantum field theory of electromagnetism. QED describes mathematically all phenomena involving electrically charged particles interacting by means of the electromagnetic force whether the interaction is between light and matter or between one and another charged particle. It has been called "the jewel of physics" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the muon, and the Lamb shift of the energy levels of hydrogen. ...more on Wikipedia about "Quantum electrodynamics"
Quantum Electronics is an area of physics dealing with the effects of Quantum Mechanics on the behaviour of electrons in solid-state matter. ...more on Wikipedia about "Quantum electronics"
Invented by Eiichi Goto at the University of Tokyo, the Quantum Flux Parametron (QFP) is an improvement over his earlier parametron based digital logic technology. Unlike its predecessor, QFP uses superconducting Josephson junctions on integrated circuits to improve speed and energy efficiency enormously. In some applications, the complexity of the cryogenic cooling system required is negligable compared to the potential speed gains. While his design makes use of quantum principles, it is not a quantum computer technology, gaining speed only through higher clock speeds. Apart from the speed advantage over traditional CMOS integrated circuit design is that parametrons can be operated with zero energy loss (no local increase in entropy), making reversible computing possible. Low energy use and heat generation is critical in supercomputer design, where thermal load per unit volume is has become one of the main limiting factors. ...more on Wikipedia about "Quantum flux parametron"
Quantum heterostructure is a heterostructure in a substrate (usually a semiconductor material), with size restricting the movements of the charge carriers and forcing them into a quantum confinement, leading to formation of a set of discrete energy levels the carriers can exist at. Quantum heterostructures have sharper density of states than structures of more conventional sizes. ...more on Wikipedia about "Quantum heterostructure"
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. ...more on Wikipedia about "Quantum optics"
In electronics, rapid single flux quantum (RSFQ) is a digital electronics technology that relies on quantum effects in superconducting materials to switch signals, instead of transistors. However, it is not a quantum computing technology in the traditional sense. Even so, RSFQ is very different from the traditional CMOS transistor technology used in every day computers: ...more on Wikipedia about "Rapid single flux quantum"
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