Definition: Quantum computing is a field of computer science that harnesses the principles of quantum mechanics to perform computations that are beyond the capabilities of classical computers.  

Detailed Description:

Quantum computers use quantum bits (qubits) instead of classical bits. Qubits can exist in multiple states simultaneously, allowing for parallel processing and the ability to solve certain problems much faster than classical computers.   

Quantum computing has the potential to revolutionize fields such as drug discovery, materials science, and cryptography. However, it is still a developing field with significant technical challenges to overcome.

Related Terms:

• Quantum Mechanics
• Qubit
• Superposition
• Entanglement
• Quantum Algorithms

FAQs:

1. What is the difference between a classical computer and a quantum computer?

   • Classical computers use bits (0 or 1), while quantum computers use qubits, which can exist in multiple states simultaneously.

2. What are some potential applications of quantum computing?

   • Drug discovery, materials science, cryptography, and optimization problems.

3. What are the challenges of building quantum computers?

   • Maintaining the quantum state of qubits, reducing errors, and scaling up quantum computers to perform useful computations.