While I'm with you on the Greek, bra/ket notation is one of the best anywhere in physics. Here [0] are some examples of why it generally looks simpler, and here

While I'm with you on the Greek, bra/ket notation is one of the best anywhere in physics. Here [0] are some examples of why it generally looks simpler, and here's [1] a derivation which would be a nightmare to write without it. 0: https://physics.stackexchange.com/questions/488903/advantages-of-using-bra-ket-notation/488905#488905 https://physics.stackexchange.com/questions/488903/advantage... 1: https://physics.stackexchange.com/questions/533523/confusion-with-dirac-notation/533525#533525 https://physics.stackexchange.com/questions/533523/confusion...