This is a little package that will help with learning how quantum spin and entanglement work. It is meant to complement some of the "theoretical minimum" lectures and other web resources. * https://en.wikipedia.org/wiki/Pauli_matrices * https://en.wikipedia.org/wiki/Triplet_state * https://en.wikipedia.org/wiki/Von_Neumann_entropy * Book: Quantum Mechanics - The Theoretical Minimum, Leanoard Susskind and Art Friedman, Basic Books, 2014. (mostly chapters 6&7) * http://theoreticalminimum.com/courses/quantum-mechanics/2012/winter/lecture-6 and lecture 7