SO colloquium: What can we expect and hope for in quantum computing?

Quantum computing can solve specific problems much faster than classical computing concepts. Promising applications include material science and chemistry as well as optimizations problems Once quantum computing is fully matured, it can even crack the most commonly used encryption methods and thus make emails, credit cards, bank transactions, etc. insecure. In recent years, quantum computing has made significant progress, which raised interest of scientists, investors and potential users. In this talk, I would like to explain how quantum computers work and show what has been achieved so far. Finally, I would like to explain which development steps are still necessary to unlock the full potential of quantum computers.