Magnetoexciton Condensate in a Hall Dielectric

A review of experimental studies of the properties of a recently discovered new coherent collective state, a magnetoexciton condensate, is presented. Condensation occurs at temperatures below 1 K in a Fermi system, a quantum Hall insulator (a filling factor of ν = 2), as a result of the formation of...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2022-10, Vol.135 (4), p.458-472
Main Authors: Gorbunov, A. V., Timofeev, V. B.
Format: Article
Language:English
Subjects:
Bosons
Classical and Quantum Gravitation
Coherence
Condensates
Cyclotrons
Electromagnetic fields
Elementary Particles
Magnetic fields
Magnetic properties
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
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Summary:A review of experimental studies of the properties of a recently discovered new coherent collective state, a magnetoexciton condensate, is presented. Condensation occurs at temperatures below 1 K in a Fermi system, a quantum Hall insulator (a filling factor of ν = 2), as a result of the formation of a dense ensemble of long-lived triplet spin cyclotron magnetoexcitons—composite bosons. The condensed phase interacts coherently with an external electromagnetic field and demonstrates the ability of fast nondiffusive propagation over macroscopic distances and high spatial coherence.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776122100156