ENTANGLED QUANTUM STATES AND A C++ IMPLEMENTATION
Willi-Hans Steeb, Yorick Hardy · International Journal of Modern Physics C · 2000
Entangled quantum states are an important component of quantum computing techniques such as quantum error-correction, dense coding and quantum teleportation. We determine the requirements for a state in the Hilbert space C4 to be entangled and a solution to the corresponding "factorization" problem if this is not the case. The factorization of nonentangled states is implemented in C++.