18 Quantum computers
This chapter covers
- Properties of quantum computers
- Using quantum computers for communications
- Using quantum computers for key exchange
- Using quantum computers for solving optimization problems
- Using quantum computers for decrypting block ciphers
- Ultracomputers, a step beyond quantum computers
As I write this book, quantum computers are in their infancy. There are no more than 20 quantum computers in the entire world, none of which contain more than about 50 qubits, or quantum bits. I write this chapter knowing that much or all of it may be outdated, or proven wrong, even before the book gets released. Much of the mathematics used in quantum mechanics and quantum computing is well beyond the scope of this book, so parts ...
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