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Bose-Einstein condensation of excitons and polaritons

Bose-Einstein condensation of excitons and polaritons

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Spontaneous linear polarization<br />

-a type <strong>of</strong> symmetry breaking<br />

k B T<br />

small splitting<br />

<strong>of</strong> ground state<br />

aligned along [110] cystal axis<br />

Cf. F.P. Laussy, I.A. Shelykh, G. Malpuech, <strong>and</strong> A. Kavokin, PRB 73, 035315 (2006),<br />

G. Malpuech et al, Appl. Phys. Lett. 88, 111118 (2006).

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