Condensation and lasing of microcavity polaritons: comparison between two models
Citation:
F. M. Marchetti, M. H. Szymanska, P. R. Eastham, B. D. Simons and P. B. Littlewood, Condensation and lasing of microcavity polaritons: comparison between two models, Solid State Communications, Spontaneous Coherence in Excitonic Systems, Pennsylvania, USA, 134, Elsevier, 2005, 111 - 115Download Item:
Abstract:
Condensation of microcavity polaritons and the substantial influence of pair-breaking disorder and decoherence
leading to a laser regime has been recently considered using two different models: a model for direct two band
excitons in a disordered quantum well coupled to light and a model where the cavity mode couples instead to a
medium of localised excitons, represented by two-level oscillators in the presence of dephasing processes. Even if
complementary from the point of view of assumptions, the models share most of the main conclusions and show
similar phase diagrams. The issue whether excitons are propagating or localised seems secondary for the polariton
condensation and the way in which pair-breaking disorder and decoherence processes influence the condensation
and drive the microcavity into a lasing regime is, within the approximations used in each model, generic. The
reasons for the similarities between the two physical situations are analysed and explained.
Author's Homepage:
http://people.tcd.ie/easthampDescription:
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Author: EASTHAM, PAUL
Publisher:
ElsevierType of material:
Conference PaperCollections
Series/Report no:
134;Availability:
Full text availableKeywords:
Atomic, molecular and chemical physics, polaritonsMetadata
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