What Can a Quantum Computer Do, That a Classical Cannot?
Three types of tasks in which Quantum Computers outperform the classical ones.
The quantum computer isn’t just a next-generation computer with a faster processor and a bigger memory stick. A quantum computer is a different type of machine that operates conceptually differently, utilizing the interference properties of quantum states, such as quantum entanglement and quantum superposition.
It is important to know that quantum algorithms won’t be able to solve any problems that classical algorithms cannot already solve. However, quantum algorithms are attractive as they might be able to solve some problems faster than the classical ones, and in a few cases, even solve some problems faster than the classical computers can verify the answer. This potential of quantum computers is that the concepts of quantum interactions are natural on quantum machines, while they probably cannot be efficiently simulated on classical ones.
A quantum computer is, however, still not here. It has its own challenges to become fully operational and commercially available, with the main ones being probably the quality of qubits and the error correction. The practical limitation of building a quantum computer is decoherence, which is the unwanted interaction between the…
