Stationary density matrix of a pumped polariton system.
The density matrix rho of a model polariton system is obtained numerically from a master equation which takes account of pumping and losses. In the stationary limit, the coherences between eigenstates of the Hamiltonian are 3 orders of magnitude smaller than the occupations, meaning that the stationary density matrix is approximately diagonal in the energy representation. A weakly distorted grand canonical Gibbs distribution fits well the occupations.
Vera
Carlos Andrés
CA
Instituto de Física, Universidad de Antioquia, AA 1226, Medellín, Colombia.
Cabo
Alejandro
A
González
Augusto
A