Which term means a benchmark where a quantum processor outputs from random circuits?

Which term means a benchmark where a quantum processor outputs from random circuits?

• A. Random circuit sampling
• B. Post quantum cryptography
• C. Noise
• D. Entanglement

Answer: (A)

Random circuit sampling is a benchmark that measures how a quantum processor outputs from random quantum circuits by sampling the resulting bitstrings. You generate many random circuits, run them on the device, and collect samples of the produced outputs. The distribution of those samples reflects the probabilities set by the circuit’s quantum state and becomes increasingly hard to reproduce classically as the circuits grow in size and depth, making it a practical way to test a quantum computer’s performance and potential advantage. Other terms refer to different ideas: post-quantum cryptography deals with cryptographic schemes secure against quantum attacks; noise describes errors and imperfections in the hardware; entanglement is a quantum resource that can be present in circuits but isn’t itself a benchmarking method.

Random circuit sampling is a benchmark that measures how a quantum processor outputs from random quantum circuits by sampling the resulting bitstrings. You generate many random circuits, run them on the device, and collect samples of the produced outputs. The distribution of those samples reflects the probabilities set by the circuit’s quantum state and becomes increasingly hard to reproduce classically as the circuits grow in size and depth, making it a practical way to test a quantum computer’s performance and potential advantage. Other terms refer to different ideas: post-quantum cryptography deals with cryptographic schemes secure against quantum attacks; noise describes errors and imperfections in the hardware; entanglement is a quantum resource that can be present in circuits but isn’t itself a benchmarking method.