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arxiv: 1508.04407 · v2 · pith:S6KFZ76Qnew · submitted 2015-08-18 · ❄️ cond-mat.mes-hall

Measurement of exciton correlations using electrostatic lattices

classification ❄️ cond-mat.mes-hall
keywords excitonmethodcorrelationcorrelationsdeterminingelectrostaticexcitonsmodulations
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We present a method for determining correlations in a gas of indirect excitons in a semiconductor quantum well structure. The method involves subjecting the excitons to a periodic electrostatic potential that causes modulations of the exciton density and photoluminescence (PL). Experimentally measured amplitudes of energy and intensity modulations of exciton PL serve as an input to a theoretical estimate of the exciton correlation parameter and temperature. We also present a proof-of-principle demonstration of the method for determining the correlation parameter and discuss how its accuracy can be improved.

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