One of the most promising applications of a quantum computing is the design of new drugs and materials:
Quantum computers promise to run calculations far beyond the reach of any conventional supercomputer. They might revolutionize the discovery of new materials by making it possible to simulate the behavior of matter down to the atomic level.
source: MIT Technology Review - Will Knight - February 21, 2018
At this moment quantum computers are not powerful enough to do these calculations / simulations. So we have not yet the proper hardware for this.
But assuming we have today quantum computers that are powerful enough, do we know how to use them to revolutionize the design of better drugs and materials in some domains ?
So is the current obstacle for this revolution that we do not have yet the proper hardware (= powerful quantum computer) or are there actually 2 obstacles:
- having powerful quantum computer (hardware)
- knowing which quantum algorithms are needed (software)