Remote dipolar interactions for objective density calibration and flow control of excitonic fluids

Kobi Cohen*, Ronen Rapaport, Paulo V. Santos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

In this Letter we suggest a method to observe remote interactions of spatially separated dipolar quantum fluids, and in particular, of dipolar excitons in GaAs bilayer based devices. The method utilizes the static electric dipole moment of trapped dipolar fluids to induce a local potential change on spatially separated test dipoles. We show that such an interaction can be used for model-independent, objective fluid density measurements, an outstanding problem in this field of research, as well as for interfluid exciton flow control and trapping. For a demonstration of the effects on realistic devices, we use a full two-dimensional hydrodynamical model.

Original languageAmerican English
Article number126402
JournalPhysical Review Letters
Volume106
Issue number12
DOIs
StatePublished - 23 Mar 2011

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