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Observation of thee/3Fractionally Charged Laughlin Quasiparticle
Open accessAbstract
The existence of fractional charges carrying current is experimentally demonstrated. Using a 2D electron system in a high perpendicular magnetic field we measure the shot noise associated with tunneling in the fractional quantum Hall regime at Landau level filling factor 1/3. The noise gives a direct determination of the quasiparticle charge, which is found to be ${e}^{*}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}e/3$ as predicted by Laughlin. The existence of $e/3$ Laughlin quasiparticles is unambiguously confirmed by the shot noise to Johnson-Nyquist noise crossover found for temperature $\ensuremath{\Theta}{\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}e}^{*}{V}_{\mathrm{ds}}/{2k}_{B}$.
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Citations
Cites
Anomalous Quantum Hall Effect: An Incompressible Quantum Fluid with Fractionally Charged Excitations
Laughlin, R. B. (1983) · Physical Review Letters · doi:10.1103/physrevlett.50.1395 · Cited by 5,749
Fractional Quantization of the Hall Effect: A Hierarchy of Incompressible Quantum Fluid States
Haldane, F. D. M. (1983) · Physical Review Letters · doi:10.1103/physrevlett.51.605 · Cited by 2,210
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Kitaev, A. (2006) · Annals of Physics · doi:10.1016/j.aop.2005.10.005 · Cited by 5,245
Quantum properties of atomic-sized conductors
Agraït, N. (2003) · Physics Reports · doi:10.1016/s0370-1573(02)00633-6 · Cited by 1,510
Direct observation of a fractional charge
de-Picciotto, R., Reznikov, M., Heiblum, M., Umansky, V., Bunin, G., & Mahalu, D. (1997) · Nature · doi:10.1038/38241 · Cited by 954
A cold-atom Fermi–Hubbard antiferromagnet
Mazurenko, A., Chiu, C. S., Ji, G., Parsons, M. F., Kanász-Nagy, M., Schmidt, R., Grusdt, F., Demler, E., Greif, D., & Greiner, M. (2017) · Nature · doi:10.1038/nature22362 · Cited by 788
Metadata
- Authors
- Saminadayar, L., Glattli, D. C., Jin, Y., & Etienne, B.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1997-09-29
- Volume
- 79
- Issue
- 13
- Pages
- 2526-2529
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2028038483
- Cited by
- 863
- References
- 2
- FWCI
- 21.81
- Type
- journal article
- Language
- en
- Open access
- green
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- Saminadayar, L., Glattli, D. C., Jin, Y., & Etienne, B. (1997). Observation of thee/3Fractionally Charged Laughlin Quasiparticle. Physical Review Letters. https://doi.org/10.1103/physrevlett.79.2526
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