TY - JOUR
T1 - Nonlinear dynamics of a dense two-dimensional dipolar exciton gas
AU - Rapaport, Ronen
AU - Chen, Gang
AU - Simon, Steven H.
PY - 2006
Y1 - 2006
N2 - We use a simple model to describe the nonlinear dynamics of a dense two-dimensional dipolar exciton gas. The model predicts an initial fast expansion due to effective dipole pressure, followed by a much slower diffusion. The model is in very good agreement with recent experimental results. We show that the dipole-pressure-induced expansion strongly constrains the time available for achieving and observing Bose-Einstein quantum statistical effects, indicating a need for spatial exciton traps. We also suggest that nonlinear ballistic exciton transport due to the strong internal dipole pressure is readily achievable.
AB - We use a simple model to describe the nonlinear dynamics of a dense two-dimensional dipolar exciton gas. The model predicts an initial fast expansion due to effective dipole pressure, followed by a much slower diffusion. The model is in very good agreement with recent experimental results. We show that the dipole-pressure-induced expansion strongly constrains the time available for achieving and observing Bose-Einstein quantum statistical effects, indicating a need for spatial exciton traps. We also suggest that nonlinear ballistic exciton transport due to the strong internal dipole pressure is readily achievable.
UR - http://www.scopus.com/inward/record.url?scp=33144465939&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.73.033319
DO - 10.1103/PhysRevB.73.033319
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AN - SCOPUS:33144465939
SN - 1098-0121
VL - 73
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 3
M1 - 033319
ER -