Introduction to Bra-Ket Notation
- This small group activity is designed to introduce students to the basics of bra-ket notation.
- Students are given a handout that introduces them to the use of bra-ket notation and how it relates to other vector representations.
- The wrap-up discussion covers how to draw a 2-dimensional complex vector. Students struggle with this idea in QM since representing a 2D complex vector requires a 4D space. We reinforce the idea that complex vectors work just like real vectors as long as you remember to take the complex conjugate of elements of Bra's.
Learning how to use a new notation is problematic, so it is important to provide opportunities for students to explicitly connect the notation that they are learning to one(s) they are familiar with.