Bose-Einstein condensation of excitons and polaritons
Bose-Einstein condensation of excitons and polaritons
Bose-Einstein condensation of excitons and polaritons
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Issues <strong>of</strong> equilibration<br />
Does lack <strong>of</strong> equilibrium destroy the concept <strong>of</strong> a condensate?<br />
N k =<br />
lifetime longer, but not much longer, than collision time<br />
continuous pumping<br />
1<br />
e (Ek )µ)/kBT )1<br />
Not seen in any<br />
polariton experiments<br />
for E >> k BT<br />
Ideal equilibrium <strong>Bose</strong>-<strong>Einstein</strong> distribution<br />
N k<br />
µ = -.001 k B T<br />
µ = -.1 k B T<br />
<strong>Bose</strong>-<strong>Einstein</strong><br />
Maxwell-Boltzmann<br />
E/k B T
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