4 ms·

My favorite is inner: <bra|ket> outer: |ket><bra|

• s9w 7y ago
  not sure why this was downvoted. QM linear algebra can be quite eye-opening and elegant
• japanuspus 7y ago
  As a quantum physicist who has drifted into other fields, I keep returning to bra-ket [0] notation when I have to do any linear algebra calculations. Find it to be the most ergonomic notation for linear algebra, especially in product spaces. In my experience, the key to avoiding snickers from math-types when using bra-kets is to say "dual space" [1] a couple of times. [0]: https://en.wikipedia.org/wiki/Bra%E2%80%93ket_notation https://en.wikipedia.org/wiki/Bra%E2%80%93ket_notation [1]: https://en.wikipedia.org/wiki/Dual_space https://en.wikipedia.org/wiki/Dual_space