(Or “single-electron transistor”) A location capable of containing a single electrical charge; i.e., a single electron of Coulomb charge. Physically, quantum dots are nanometer-size semiconductor structures in which the presence or absence of a quantum electron can be used to store information.
See also: quantum cell, quantum cell wire, quantum-dot cellular automata.
[“Quantum Dot Heterostructures”, D. Bimberg, et al, John Wiley & Sons Ltd., Dec 1998].
- Quantum-dot cellular automata
electronics, computing (QCA) Quantum logic circuits created by orientating pairs of quantum cells so that their relative positions determine their affect on each other. This is functionally analogous but structurally different from how individual gates in integrated circuits are combined to create logical and memory circuitry. The advantages of quantum-dot cellular automata over conventional circuitry […]
- Quantum efficiency
noun 1. (physics) the number of electrons released by a photocell per photon of incident radiation of a given energy 2. (chem) the number of chemical species that undergo reaction per photon of absorbed radiation of a given energy
noun, Physics. 1. the quantum field theory that deals with the electromagnetic field and its interaction with electrons and positrons. Abbreviation: QED. noun 1. (physics) a relativistic quantum mechanical theory concerned with electromagnetic interactions QED quantum electrodynamics A quantum field theory of electromagnetism that explains the interactions between electrically charged particles and photons. According to […]
- Quantum electronics
noun 1. the application of quantum mechanics and quantum optics to the study and design of electronic devices