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.

The microscopic nature of neutral collective excitation of the fractional quantum Hall state is still debated. Here the authors show that a macroscopic ensemble of neutral excitations in the 1/3 state exhibits properties of a Bose system with an exceptionally long coherence time.

Details

Title
Laughlin anyon complexes with Bose properties
Author
Kulik, L V 1 ; Zhuravlev, A S 2 ; Musina, L I 3   VIAFID ORCID Logo  ; Belozerov, E I 1 ; Van’kov A B 1 ; Volkov, O V 2 ; Zagitova, A A 2 ; Kukushkin, I V 2 ; Umansky, V Y 4 

 Institute of Solid State Physics Russian Academy of Sciences Chernogolovka, Moscow District, Russia (GRID:grid.418975.6) (ISNI:0000 0004 0638 3102); National Research University Higher School of Economics, Moscow, Russia (GRID:grid.410682.9) (ISNI:0000 0004 0578 2005) 
 Institute of Solid State Physics Russian Academy of Sciences Chernogolovka, Moscow District, Russia (GRID:grid.418975.6) (ISNI:0000 0004 0638 3102) 
 Moscow Institute of Physics and Technology, Dolgoprudny, Russia (GRID:grid.18763.3b) (ISNI:0000000092721542); Skolkovo Institute of Science and Technology, Moscow, Russia (GRID:grid.454320.4) (ISNI:0000 0004 0555 3608) 
 Braun Center for Submicron Research, Weizmann Institute of Science, Rehovot, Israel (GRID:grid.13992.30) (ISNI:0000 0004 0604 7563) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20411723
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2595304386
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.