Title: Quiz: Challenges And Limitations Quiz
Course: Quantum_Computing > Section: Module11

Q: What is Quantum Error Correction (QEC) primarily aimed at addressing?
- The design of quantum hardware
- The protection of quantum information from errors
- The development of classical computing algorithms
- The enhancement of classical error correction methods
A: The protection of quantum information from errors

Q: Who proposed the Shor code, which is a type of quantum error correction code?
- John Preskill
- Peter Shor
- David Gottesman
- Richard Feynman
A: Peter Shor

Q: Why is decoherence considered a significant barrier to quantum computing?
- It enhances the superposition of qubits
- It causes qubits to lose their quantum properties
- It simplifies the design of quantum algorithms
- It increases the number of qubits in a system
A: It causes qubits to lose their quantum properties

Q: How does the threshold theorem relate to Quantum Error Correction?
- It states that error rates must be above a certain level for QEC to be effective
- It provides a theoretical foundation for fault-tolerant quantum computation
- It indicates that QEC is unnecessary for practical quantum computing
- It suggests that QEC can only be implemented in classical systems
A: It provides a theoretical foundation for fault-tolerant quantum computation

Q: What is one of the primary challenges associated with implementing Quantum Error Correction?
- The simplicity of encoding logical qubits
- The need for high-fidelity quantum gates and measurements
- The lack of interest in quantum computing research
- The abundance of available qubit technologies
A: The need for high-fidelity quantum gates and measurements

Q: What is decoherence primarily caused by?
- The isolation of quantum systems from their environment
- The interaction of quantum systems with their surrounding environment
- The replication of quantum states
- The application of classical error correction techniques
A: The interaction of quantum systems with their surrounding environment

Q: What is a potential solution to mitigate the effects of decoherence in quantum systems?
- Increasing the temperature of the quantum system
- Using classical bits instead of qubits
- Employing topologically protected qubits
- Reducing the number of qubits in a system
A: Employing topologically protected qubits

Q: In the context of scalability challenges in quantum computing, what must be maintained as the number of qubits increases?
- High error rates
- Low error rates
- The same number of qubits
- Classical computing performance
A: Low error rates