  Quantum state production and characterization are fundamental elements for
many quantum technological applications. In this work, we studied the
generation of polarization quantum states by interacting light with a Kerr
medium and the dependency of the outcome on orthogonal polarization seedlings.
Starting from %Our experimental apparatus is based on coherent states produced
by Ti:Sapphire laser, interaction with a $^{87}$Rb warm vapor cell led to noise
compression of $-5.2\pm 0.5$ dB ($6.4\pm 0.6$ dB after correction of the
detection quantum efficiency).
