Entangled or Not?
Classical Mechanics
Level
2
Is the following state \(|\Psi\rangle\) entangled?
\[|\Psi\rangle = \frac{1}{\sqrt{2}} (|\downarrow\downarrow\rangle + |\downarrow\uparrow\rangle).\]
Note: The notation \(|\uparrow\downarrow\rangle = |\uparrow\rangle \otimes |\downarrow\rangle\) is a common shorthand for tensor products of spin states.
by
Matt DeCross