TY - JOUR
T1 - Stability and spatial coherence of nonresonantly pumped exciton-polariton condensates
AU - Bobrovska, Nataliya
AU - Ostrovskaya, Elena A.
AU - Matuszewski, Michał
N1 - Publisher Copyright:
© 2014 American Physical Society.
PY - 2014/11/17
Y1 - 2014/11/17
N2 - We investigate the stability and coherence properties of one-dimensional exciton-polariton condensates under nonresonant pumping. We model the condensate dynamics using the open-dissipative Gross-Pitaevskii equation. In the case of spatially homogeneous pumping, we find that the instability of the steady state leads to significant reduction of the coherence length. We consider two effects that can lead to the stabilization of the steady state, i.e., the polariton energy relaxation and the influence of an inhomogeneous pumping profile. We find that, while the former has little effect on the stability, the latter is very effective in stabilizing the condensate, which results in a large coherence length.
AB - We investigate the stability and coherence properties of one-dimensional exciton-polariton condensates under nonresonant pumping. We model the condensate dynamics using the open-dissipative Gross-Pitaevskii equation. In the case of spatially homogeneous pumping, we find that the instability of the steady state leads to significant reduction of the coherence length. We consider two effects that can lead to the stabilization of the steady state, i.e., the polariton energy relaxation and the influence of an inhomogeneous pumping profile. We find that, while the former has little effect on the stability, the latter is very effective in stabilizing the condensate, which results in a large coherence length.
UR - http://www.scopus.com/inward/record.url?scp=84911129417&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.90.205304
DO - 10.1103/PhysRevB.90.205304
M3 - Article
SN - 1098-0121
VL - 90
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 20
M1 - 205304
ER -