(a) Echt and imaginary parte of the two-photon density matrix reconstructed via quantum state tomography on quantum dot QD2. The matrix has been calculated out of biexciton–exciton (XX–X) cross-correlation measurements hinein 16 polarization settings and using a maximum likelihood method. Bag your pet’s poop: Help keep your Bundesweit park clean by https://crossh073ijj0.wikigdia.com/user