Pseudoentanglement of spin states in the multilevel 15N@C60 system -: art. no. 206603

We have prepared combined electron and nuclear spin pseudoentangled states Psi(27)(+/-) and Phi(18)(+/-) out of the total number of eight quantum states in the multilevel quantum system of a nitrogen atom with electron spin 3/2 and nuclear spin 1/2 encaged in the endohedral fullerene N-15@C-60. Density matrix tomography was applied to verify the degree of entanglement.