  Lectures given at the Theoretical Advanced Study Institute (TASI 2020), 1-26
June 2020. The topics covered include quantum circuits, entanglement, quantum
teleportation, Bell inequalities, quantum entropy and decoherence, classical
versus quantum measurement, the area law for entanglement entropy in quantum
field theory, and simulating quantum field theory on a quantum computer. Along
the way we confront the fundamental sloppiness of how we all learned (and some
of us taught) quantum mechanics in college. Links to a Python notebook and
Mathematica notebooks will allow the reader to reproduce and extend the
calculations, as well as perform five experiments on a quantum simulator.
