tunneling phenomenon

См. также в других словарях:

• tunneling — tun·nel·ing (tŭnʹə lĭng) n. In quantum mechanics, the passing of a particle through a seemingly impenetrable barrier without a cause that is explainable by classical physics. * * * or barrier penetration In physics, the passage of a particle… …   Universalium

• scanning tunneling microscope — noun Date: 1983 a microscope that makes use of the phenomenon of tunneling electrons to map the positions of individual atoms in a surface or to move atoms around on a surface • scanning tunneling microscopy noun …   New Collegiate Dictionary

• scanning tunneling microscope — noun : a microscope that makes use of the phenomenon of electron tunneling to map the positions of individual atoms in a surface or to move atoms around on a surface • scanning tunneling microscopy noun …   Useful english dictionary

• Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …   Wikipedia

• Faster-than-light — (also superluminal or FTL) communications and travel refer to the propagation of information or matter faster than the speed of light. Science fiction style space travel, dubbed true FTL, defies known physics.Under the special theory of… …   Wikipedia

• Invisibility — is the state of an object which cannot be seen. An object in this state is said to be invisible (literally, not visible ). The term is usually used as a fantasy/science fiction term, where objects are literally made unseeable by magical or… …   Wikipedia

• quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …   Universalium

• Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… …   Wikipedia

• radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …   Universalium

• Field emission — (FE) is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields. In this phenomenon, electrons with energies below the Fermi level tunnel through the potential barrier at the… …   Wikipedia

• Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …   Wikipedia