Half Spin

#Physics

$\displaystyle \uparrow ,=\left\lvert \frac{1}{2}, \frac{1}{2}\right\rangle$

• Represents $\displaystyle \ket{s,m_{s}}$, or a state with a spin $\displaystyle s$ and spin quantum number $\displaystyle m_{s}$

$\displaystyle \downarrow ,=\left\lvert \frac{1}{2}, -\frac{1}{2}\right\rangle$