Artificial trapping of a stable high-density dipolar exciton fluid

Gang Chen*, Ronen Rapaport, L. N. Pffeifer, K. West, P. M. Platzman, Steven Simon, Z. Vörös, D. Snoke

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

We present compelling experimental evidence for a successful electrostatic trapping of two-dimensional dipolar excitons that results in stable formation of a well-confined, high-density and spatially uniform dipolar exciton fluid. We show that, for at least half a microsecond, the exciton fluid sustains a density higher than the critical density for degeneracy if the exciton fluid temperature reaches the lattice temperature within that time. This method should allow for the study of strongly interacting bosons in two dimensions at low temperatures, and possibly lead towards the observation of quantum phase transitions of two-dimensional interacting excitons, such as superfluidity and crystallization.

Original languageAmerican English
Article number045309
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number4
DOIs
StatePublished - 2006
Externally publishedYes

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