Table of Contents
What problems are quantum computers good at solving?
Quantum computers can solve NP-hard problems that classical computers are unable to solve. Currently, the two most important and notable complexity classes are “P” and “NP.” P represents problems that can be solved in polynomial time by a classical computer. For instance, asking if a number is prime belongs to P.
How will quantum computers be a disadvantage to us?
However, the disadvantages of quantum computing include breaking current encryption systems, which could leave doors open for data theft if organizations are not prepared to transition to cryptography to post-quantum algorithms. Without proper security, many of the promised benefits of quantum computing will fail.
Why is a quantum computer faster than a classical computer?
A quantum computer by itself isn’t faster. Instead, it has a different model of computation. In this model, there are algorithms for certain (not all!) problems, which are asymptotically faster than the fastest possible (or fastest known, for some problems) classical algorithms.
Can quantum computers solve the world’s most important problems?
Quantum computing New paper suggests quantum computers will address problems that could have substantial scientific and economic impact The MoFe protein, left, and the FeMoco, right, would be able to be analyzed by quantum computing to help reveal the complex chemical system behind nitrogen fixation by the enzyme nitorgense.
Are quantum algorithms faster than the fastest classical algorithms?
In this model, there are algorithms for certain (not all!) problems, which are asymptotically faster than the fastest possible (or fastest known, for some problems) classical algorithms. I recommend reading The Limits of Quantum by Scott Aaronson: it’s a short popular article explaining just what we can expect from quantum computers.
What is an intuitive explanation of a quantum computer?
Quantum computing exploits the superposition-of-states feature of Quantum Mechanics to simulate providing enough hardware – i.e each state in the superposition is ‘the machine’ for one of the sub-cases. Note that this simulation is done NOT by software, but by Nature itself.