Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595282 | Solid State Communications | 2007 | 7 Pages |
Abstract
By comparing a kinetic and a thermal-equilibrium theory of polariton Bose–Einstein condensation, we study under what conditions the dynamical condensation under steady-state non-resonant pumping can approach thermal equilibrium. In particular, we study the dependence on two material parameters: the vacuum-field Rabi-splitting and the polariton radiative lifetime. When increasing the Rabi splitting, condensation takes place under strong non-equilibrium conditions, with dominating quantum fluctuations. Increasing the polariton lifetime above 10 ps at moderate Rabi splitting, instead, produces a quasi-equilibrium condensate at low exciton density, consistently with the picture of a weakly interacting Bose gas.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
D. Sarchi, V. Savona,