1. A Josephson relation for fractionally charged anyons
- Author
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M. Santin, M. Kapfer, Ian Farrer, David A. Ritchie, Preden Roulleau, D. C. Glattli, Kapfer, M [0000-0002-1017-2602], Farrer, I [0000-0002-3033-4306], Ritchie, DA [0000-0002-9844-8350], Glattli, DC [0000-0002-1457-0915], and Apollo - University of Cambridge Repository
- Subjects
Physics ,Multidisciplinary ,Shot noise ,Anyon ,Charge (physics) ,02 engineering and technology ,Electron ,Quantum phases ,021001 nanoscience & nanotechnology ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,01 natural sciences ,Topological quantum computer ,Quantum mechanics ,0103 physical sciences ,Fractional quantum Hall effect ,0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics ,Quantum information ,010306 general physics ,0210 nano-technology ,0206 Quantum Physics - Abstract
Probing the dynamics of anyons A two-dimensional electron gas in the fractional quantum Hall regime has unusual excitations called anyons that carry only a fraction of the electron's charge. This fractional charge can be observed through a dynamical response to irradiation by microwaves, but such experiments require a combination of high magnetic fields with sensitive noise measurements and very low temperatures. Kapfer et al. observed this dynamical response in a GaAs/AlGaAs heterostructure hosting a high-mobility two-dimensional electron gas with fractional excitations of one-third and one-fifth of the electron's charge. The method may be of interest for use in topological quantum computing. Science , this issue p. 846
- Published
- 2019
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