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Exciton Gas versus Electron Hole Liquid in the Double Quantum Wells

Published online by Cambridge University Press:  19 November 2013

Vladimir S. Babichenko  and
Ilya Ya. Polishchuk
Vladimir S. Babichenko
Affiliation:
RNC Kurchatov Institute, Kurchatov Sq.1, 123182, Moscow, Russia
Ilya Ya. Polishchuk
Affiliation:
RNC Kurchatov Institute, Kurchatov Sq.1, 123182, Moscow, Russia Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Str. 38, D-01187 Dresden, Germany Moscow Institute of Physics and Technology, Institutskii per 9, Dolgoprudnii, Moscow Reg, 141700, Russia
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Abstract

The many-body correlation effects in the spatially separated electron and hole layers in the coupled quantum wells (CQW) are investigated. A special case of the many-component electron-hole system is considered, ν>>1 being the number of the components. Keeping the main diagrams in the parameter 1/ν allows us to justify the selection of the RPA diagrams. The ground state of the system is found to be the electron-hole liquid with the energy smaller than the dense exciton gas phase. The possible connection is discussed between the results obtained and the experiments in which the inhomogeneous state in the CQW is found.

Keywords

luminescenceGaAs/AlGaAsExciton Gas
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1617: Symposium 7E – Low-Dimensional Semiconductor Structures , 2013 , pp. 37 - 42
Copyright
Copyright © Materials Research Society 2013 

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References

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