(a) Real and imaginary part 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 in 16 polarization settings and using a maximum likelihood method. Bryce Canyon is best known for its hoodoos--intricately-carved rock spires https://archimedesc951efj0.wikiexpression.com/user