Laughlin anyon complexes with Bose properties

L. V. Kulik, A. S. Zhuravlev, L. I. Musina (), E. I. Belozerov, A. B. Van’kov, O. V. Volkov, A. A. Zagitova, I. V. Kukushkin and V. Y. Umansky
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L. V. Kulik: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
A. S. Zhuravlev: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
L. I. Musina: Moscow Institute of Physics and Technology
E. I. Belozerov: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
A. B. Van’kov: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
O. V. Volkov: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
A. A. Zagitova: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
I. V. Kukushkin: Institute of Solid State Physics Russian Academy of Sciences Chernogolovka
V. Y. Umansky: Braun Center for Submicron Research, Weizmann Institute of Science

Nature Communications, 2021, vol. 12, issue 1, 1-7

Abstract: Abstract Two-dimensional electron systems in a quantizing magnetic field are regarded as of exceptional interest, considering the possible role of anyons—quasiparticles with non-boson and non-fermion statistics—in applied physics. To this day, essentially none but the fractional states of the quantum Hall effect (FQHE) have been experimentally realized as a system with anyonic statistics. In determining the thermodynamic properties of anyon matter, it is crucial to gain insight into the physics of its neutral excitations. We form a macroscopic quasi-equilibrium ensemble of neutral excitations - spin one anyon complexes in the Laughlin state ν = 1/3, experimentally, where ν is the electron filling factor. The ensemble is found to have such a long lifetime that it can be considered the new state of anyon matter. The properties of this state are investigated by optical techniques to reveal its Bose properties.

Date: 2021
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DOI: 10.1038/s41467-021-26873-w

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