Concept information
Terme préférentiel
fractional quantum Hall effect
Définition(s)
- The fractional quantum Hall effect (FQHE) is a physical phenomenon in which the Hall conductance of 2-dimensional (2D) electrons shows precisely quantized plateaus at fractional values of (e²/h. It is a property of a collective state in which electrons bind magnetic flux lines to make new quasiparticles, and excitations have a fractional elementary charge and possibly also fractional statistics. The 1998 Nobel Prize in Physics was awarded to Robert Laughlin, Horst Störmer, and Daniel Tsui "for their discovery of a new form of quantum fluid with fractionally charged excitations" Laughlin's explanation only applies to fillings ν = 1/m where m is an odd integer. The microscopic origin of the FQHE is a major research topic in condensed matter physics. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fractional_quantum_Hall_effect)
Concept(s) générique(s)
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-CGHC98ZK-N
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