Quantum Computing quiz

More questions about Quantum Computing

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Which quantum effect links the measurement outcomes of particles?

   Answer: Entanglement

   Why: Einstein called this “spooky action at a distance” in a 1947 letter, yet entanglement cannot send a message faster than light.

2. 2 Medium

   How long did Google's 2019 chip take for a 10,000-year supercomputer task?

   Answer: 200 seconds

   Why: IBM answered within days that a supercomputer could match the run in 2.5 days, and by 2024 a 1,432-GPU cluster beat Sycamore's own time.

3. 3 Hard

   Which technology uses lasers to suspend atoms in a vacuum?

   Answer: Neutral atoms

   Why: Focused laser beams called optical tweezers grip single rubidium atoms, while ion machines hold their particles with electric fields.

4. 4 Easy

   What amplifies right answers and cancels wrong ones?

   Answer: Interference

   Why: Lov Grover's 1996 search algorithm uses exactly this: it finds one item among N in about the square root of N steps, a quadratic speedup.

5. 5 Medium

   What did Einstein call the link between two distant quantum particles?

   Answer: Spooky action at a distance

   Why: He used the German spukhafte Fernwirkung in a 1947 letter to Max Born; the 2022 physics Nobel honoured experiments confirming it.

6. 6 Hard

   Who proposed using quantum physics to simulate nature in 1981?

   Answer: Richard Feynman

   Why: He said it at the Physics of Computation meeting at MIT in May 1981; Soviet mathematician Yuri Manin had raised a similar idea in 1980.