{{page>wiki:headers:hheader}} ===== Density Operator Prerequisites ===== Before learning about the density operator, students should: * Know postulates 1-5 of quantum mechanics. * Have experience using quantum operators in both bra-ket and matrix notation. * Know how to perform the outer product of two quantum state vectors. * Previous experience with matrix operations, particularly the trace, is useful. {{page>wiki:footers:courses:spfooter}}