Entanglement and topology#
Bell/EPR spin correlations and the CHSH inequality, the Aharonov-Bohm effect (a purely topological consequence of the vector potential), Bloch-sphere qubit dynamics (Larmor precession and an animated Rabi oscillation), the dynamical generation of entanglement between two qubits coupled by an Ising interaction, and why no fixed unitary can clone an arbitrary qubit state (the no-cloning theorem).
The no-cloning theorem: why a fixed unitary can copy a basis, not a state
The no-cloning theorem: why a fixed unitary can copy a basis, not a state