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barrier tunnelling

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  • Quantum tunnelling — In quantum mechanics, quantum tunnelling is a nanoscopic phenomenon in which a particle violates the principles of classical mechanics by penetrating a potential barrier or impedance higher than the kinetic energy of the particle.Razavy, Mohsen.… …   Wikipedia

  • Resonant tunnelling diode — A resonant tunnel diode (RTD) is a device which uses quantum effects to produce negative differential resistance (NDR). As an RTD is capable of generating a terahertz wave at room temperature, it can be used in ultra high speed circuitry.… …   Wikipedia

  • Finite potential barrier (QM) — In quantum mechanics, the finite potential barrier is a standard one dimensional problem that demonstrates the phenomenon of quantum tunnelling. The problem consists of solving the time independent Schrödinger equation for a particle with a… …   Wikipedia

  • quantum tunnelling — See potential barrier tunnel effect …   Dictionary of automotive terms

  • 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

  • Coulomb blockade — Schematic representation of an electron tunnelling through a barrier In physics, a Coulomb blockade (abbreviated CB), named after Charles Augustin de Coulomb s electrical force, is the increased resistance at small bias voltages of an electronic… …   Wikipedia

  • Ольховский, Владислав Сергеевич — В Википедии есть статьи о других людях с такой фамилией, см. Ольховский. Владислав Сергеевич Ольховский (5 февраля 1938)  украинский ученый, доктор физико математических наук (1989), профессор в области ядерной физики (1992), член Нью… …   Википедия

  • Hartman effect — The delay time for a tunneling particle is independent of the thickness of the opaque barrier. This is called the Hartman effect and might result in particles traveling faster than light.The Hartman effect is the tunnelling effect through a… …   Wikipedia

  • False vacuum — In quantum field theory, a false vacuum is a metastable sector of space that appears to be a perturbative vacuum, but is unstable due to instanton effects that may tunnel to a lower energy state. This tunneling can be caused by quantum… …   Wikipedia

  • Markham & Co. — Markham Co. Ltd Industry Heavy Engineering Fate Taken over Predecessor J W Oliver Successor Davy Markham Founded 1889 (as Markham Co.) Defunct 1998 …   Wikipedia

  • 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

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