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- Josephson_effect abstract "The Josephson effect is the phenomenon of supercurrent—i.e. a current that flows indefinitely long without any voltage applied—across a device known as a Josephson junction (JJ), which consists of two superconductors coupled by a weak link. The weak link can consist of a thin insulating barrier (known as a superconductor–insulator–superconductor junction, or S-I-S), a short section of non-superconducting metal (S-N-S), or a physical constriction that weakens the superconductivity at the point of contact (S-s-S). The Josephson effect is an example of a macroscopic quantum phenomenon. It is named after the British physicist Brian David Josephson, who predicted in 1962 the mathematical relationships for the current and voltage across the weak link. The DC Josephson effect had been seen in experiments prior to 1962, but had been attributed to "super-shorts" or breaches in the insulating barrier leading to the direct conduction of electrons between the superconductors. The first paper to claim the discovery of Josephson's effect, and to make the requisite experimental checks, was that of Philip Anderson and John Rowell. These authors were awarded patents on the effects that were never enforced, but never challenged.Before Josephson's prediction, it was only known that normal (i.e. non-superconducting) electrons can flow through an insulating barrier, by means of quantum tunneling. Josephson was the first to predict the tunneling of superconducting Cooper pairs. For this work, Josephson received the Nobel prize in physics in 1973. Josephson junctions have important applications in quantum-mechanical circuits, such as SQUIDs, superconducting qubits, and RSFQ digital electronics. The NIST standard for one Volt is achieved by an array of 19,000 Josephson junctions in series.A Dayem bridge is a thin-film variant of the Josephson junction in which the weak link consists of a superconducting wire with dimensions on the scale of a few micrometres or less.".
- Josephson_effect thumbnail NISTvoltChip.jpg?width=300.
- Josephson_effect wikiPageID "446712".
- Josephson_effect wikiPageRevisionID "605051093".
- Josephson_effect hasPhotoCollection Josephson_effect.
- Josephson_effect subject Category:Condensed_matter_physics.
- Josephson_effect subject Category:Josephson_effect.
- Josephson_effect subject Category:Mesoscopic_physics.
- Josephson_effect subject Category:Sensors.
- Josephson_effect subject Category:Superconductivity.
- Josephson_effect type Artifact100021939.
- Josephson_effect type Detector103180969.
- Josephson_effect type Device103183080.
- Josephson_effect type Instrumentality103575240.
- Josephson_effect type Object100002684.
- Josephson_effect type PhysicalEntity100001930.
- Josephson_effect type Sensors.
- Josephson_effect type Whole100003553.
- Josephson_effect comment "The Josephson effect is the phenomenon of supercurrent—i.e. a current that flows indefinitely long without any voltage applied—across a device known as a Josephson junction (JJ), which consists of two superconductors coupled by a weak link.".
- Josephson_effect label "Efecto Josephson".
- Josephson_effect label "Efeito Josephson".
- Josephson_effect label "Effet Josephson".
- Josephson_effect label "Giunzione Josephson".
- Josephson_effect label "Josephson effect".
- Josephson_effect label "Josephson-Effekt".
- Josephson_effect label "Josephson-junctie".
- Josephson_effect label "Tunelowanie Josephsona".
- Josephson_effect label "Эффект Джозефсона".
- Josephson_effect label "ジョセフソン効果".
- Josephson_effect label "约瑟夫森效应".
- Josephson_effect sameAs Josephsonův_jev.
- Josephson_effect sameAs Josephson-Effekt.
- Josephson_effect sameAs Efecto_Josephson.
- Josephson_effect sameAs Effet_Josephson.
- Josephson_effect sameAs Giunzione_Josephson.
- Josephson_effect sameAs ジョセフソン効果.
- Josephson_effect sameAs 조지프슨_효과.
- Josephson_effect sameAs Josephson-junctie.
- Josephson_effect sameAs Tunelowanie_Josephsona.
- Josephson_effect sameAs Efeito_Josephson.
- Josephson_effect sameAs m.029h3q.
- Josephson_effect sameAs Q764228.
- Josephson_effect sameAs Q764228.
- Josephson_effect sameAs Josephson_effect.
- Josephson_effect wasDerivedFrom Josephson_effect?oldid=605051093.
- Josephson_effect depiction NISTvoltChip.jpg.
- Josephson_effect isPrimaryTopicOf Josephson_effect.
