density matrix: [[[[ 0.48051804 -0.0005949   0.00000482 -0.00058151 -0.00000012]
   [-0.0005949   0.48106567  0.00000231  0.00070572 -0.00001428]
   [ 0.00000482  0.00000231  0.22376447  0.00000212  0.        ]
   [-0.00058151  0.00070572  0.00000212  0.48455262  0.00001417]
   [-0.00000012 -0.00001428  0.          0.00001417  0.22394773]]]]
overlap matrix: [[[[ 0.88283208 -0.          0.          0.00000001 -0.00000001]
   [-0.          0.8828321  -0.          0.00000001 -0.        ]
   [ 0.         -0.          0.48099651 -0.         -0.00000001]
   [ 0.00000001  0.00000001 -0.          0.8828321  -0.        ]
   [-0.00000001 -0.         -0.00000001 -0.          0.48082539]]]]