Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85892
Title: Spin-orbit coupling and the topology of gases of spin-degenerate cold excitons in photoexcited GaAs-AlGaAs quantum wells
Authors: Matuszewski, M.
Liew, Timothy Chi Hin
Rubo, Y. G.
Kavokin, A. V.
Keywords: Quantum wells
Excitons
Issue Date: 2012
Source: Matuszewski, M., Liew, T. C. H., Rubo, Y. G., & Kavokin, A. V. (2012). Spin-orbit coupling and the topology of gases of spin-degenerate cold excitons in photoexcited GaAs-AlGaAs quantum wells. Physical Review B, 86(11), 115321-.
Series/Report no.: Physical Review B
Abstract: We calculate the spatial structure of four-component spinor systems of mixed bright and dark exciton condensates in coupled quantum wells. The spin-dependent bright-dark exciton conversion and Dresselhaus spin-orbit coupling is found to generate a rich variety of topological elements. By propagating the Gross-Pitaevskii equation in imaginary time, we observe the following: single and multiple polarized vortices; the phase separation of bright and dark excitons; and exotic spatial structures in density and spin polarization.
URI: https://hdl.handle.net/10356/85892
http://hdl.handle.net/10220/43890
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.86.115321
Rights: © 2012 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.86.115321]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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