Why the Dirac Notation Works?

When we first learn Dirac notation (the bra and ket thing to represent state vectors), the notation for the inner product becomes so succinct.

But why? Why does it become so succinct? I know there are a lot of questions that are meaningless or they need not have an answer for the theory to work but there should be an explanation for it. Is there a theory or something deep inside that makes it work. Or it is a mere coincidence.

Are there other such notations that promise to make the notations look more succinct like the Dirac notation or is it unique?

Perpetual Tourists — Our Natural Places

I loved this Blog so much! ❤

Following are the best lines that I always wanted to read and yet never found in any article or any book 🥺😭

“We visit places in nature. We look at things. We like the things we see. We like doing this more than going other places which are not in nature.

We are simply tourists. Rather than visiting monuments, museums or massive commercial theme-parks, we prefer the sights and sounds of forest, swamp, field and coast.”

Header Image: Swallow-tailed Kite “Are you a birder?” The question was simple enough. My answer was quick: “Yes.” Once upon a time, I considered myself a “bird watcher”, but somewhere along the way I discovered that term had become replaced with the more trendy “birder”. Sitting next to Gini that evening, sipping tea and taking […]

Perpetual Tourists — Our Natural Places