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Bogoliubov theory of Bose-condensates of spinor exciton-polaritons

Bogoliubov theory of Bose-condensates of spinor exciton-polaritons
Bogoliubov theory of Bose-condensates of spinor exciton-polaritons
In the present work, we present the formalism allowing to calculate the energy spectrum of polariton spinor Bose condensates. We investigate the dispersion of the elementary excitations of the weakly depleted polariton condensate within the framework of the Bogoliubov approach. We show that for linearly polarized condensates the anisotropy of the polariton-polariton interactions leads to important differences in polariton dispersion in linear co- and cross-linear polarizations. Surprisingly, we find that contrary to the standard Bogoliubov model (which does not take into account the spin of the condensate) the dispersion is not necessary linear at k = 0, but can be parabolic.
03.75.Mm, 71.36.+c
0031-8965
2614-2620
Shelykh, I.A.
7dad78b3-4681-410a-abf2-39f3bb16c41f
Malpuech, G.
da5f02e8-b721-4a4b-a3fc-cb756b396e4a
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Shelykh, I.A.
7dad78b3-4681-410a-abf2-39f3bb16c41f
Malpuech, G.
da5f02e8-b721-4a4b-a3fc-cb756b396e4a
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b

Shelykh, I.A., Malpuech, G. and Kavokin, A.V. (2005) Bogoliubov theory of Bose-condensates of spinor exciton-polaritons. Physica Status Solidi A-Applied Research, 202 (14), 2614-2620. (doi:10.1002/pssa.200562000).

Record type: Article

Abstract

In the present work, we present the formalism allowing to calculate the energy spectrum of polariton spinor Bose condensates. We investigate the dispersion of the elementary excitations of the weakly depleted polariton condensate within the framework of the Bogoliubov approach. We show that for linearly polarized condensates the anisotropy of the polariton-polariton interactions leads to important differences in polariton dispersion in linear co- and cross-linear polarizations. Surprisingly, we find that contrary to the standard Bogoliubov model (which does not take into account the spin of the condensate) the dispersion is not necessary linear at k = 0, but can be parabolic.

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More information

Published date: 2005
Keywords: 03.75.Mm, 71.36.+c

Identifiers

Local EPrints ID: 57593
URI: http://eprints.soton.ac.uk/id/eprint/57593
ISSN: 0031-8965
PURE UUID: 424a3c49-5f02-4d1c-ad06-0dc9b8937a50

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Date deposited: 13 Aug 2008
Last modified: 13 Mar 2019 20:33

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