ognik Messages 626 Reaction score 2 Thread starter Nov 17, 2015 #1 Hi - is there any difference between 'null column vector' and $ |0 \rangle $? Ta
Ackbach Gold Member MHB Messages 4,148 Reaction score 94 Nov 17, 2015 #2 There's no difference in the usual matrix interpretation of bras and kets. Kets are column vectors, and bras are complex conjugate tranposes, so they're row vectors. This does change in infinite-dimensional Hilbert space.
There's no difference in the usual matrix interpretation of bras and kets. Kets are column vectors, and bras are complex conjugate tranposes, so they're row vectors. This does change in infinite-dimensional Hilbert space.