Learn Quantum Computation
Just last week I finished a course on Quantum Computing on coursera[1].I found the idea of true randomness and multiverse really fascinating. However, I could not understand the following and would greatly appreciate if someone could help me out:-- The need for complex numbers in describing a quantum bit. Why do we have to use complex numbers when the system is very much real? What is the real world interpretation?-- The fact that an n-qubit quantum computing system is significantly powerful than classical system because of 2^n states. But, a classical system with n-bits will also have 2^n states, isn't it?[1] https://www.coursera.org/learn/quantum-computing-lfmu