Quantum Computing Trivia Questions

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  • 🗂️ Technology
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Computing using quantum mechanical phenomena. Play Quantum Computing trivia solo to sharpen your knowledge, or challenge a friend head-to-head in Trivia Tango — every question comes with an explanation so you learn as you play. Questions span every level, from easy warm-ups to expert-level stumpers, so there's a real challenge here however much you already know.

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Sample Quantum Computing Quiz Questions

A mix of easy, medium and hard — questions run from warm-up to expert, so there's a real challenge at every level. Think you know the answers? Play to find out.

  1. This tech giant achieved "quantum supremacy" in 2019, claiming their quantum computer solved a problem in minutes that would take classical computers thousands of years.

    Difficulty: Easy
    • Google
    • IBM
    • Microsoft
    • Intel
  2. This quantum algorithm for solving combinatorial optimization problems alternates between a cost Hamiltonian and a mixer Hamiltonian.

    Difficulty: Medium
    • VQE
    • QAOA
    • Grover's algorithm
    • Quantum walks
  3. This sampling problem with photons in linear optical networks was proven computationally hard before random circuit sampling was proposed.

    Difficulty: Hard
    • Gaussian boson sampling
    • Fermion sampling
    • Boson sampling
    • IQP sampling
  4. This physicist introduced a thought experiment involving a cat in a box to illustrate the strange implications of quantum superposition.

    Difficulty: Easy
    • Albert Einstein
    • Werner Heisenberg
    • Niels Bohr
    • Erwin Schrödinger
  5. This quantum error correction code, developed at Caltech, can correct any single-qubit error using only 5 physical qubits.

    Difficulty: Medium
    • Steane code
    • Shor code
    • Perfect code (5-qubit code)
    • Surface code
  6. This operator formalism describes noisy quantum channels using a set of operators that map density matrices while preserving trace and positivity.

    Difficulty: Hard
    • Hamiltonian formalism
    • Stinespring dilation
    • Choi representation
    • Kraus representation
  7. This company's quantum computing platform is called Qiskit, and they have made quantum computers accessible via the cloud.

    Difficulty: Easy
    • Google
    • IBM
    • Amazon
    • Apple
  8. This popular error correction code arranges qubits on a 2D grid and is considered the most practical path to fault-tolerant quantum computing.

    Difficulty: Medium
    • Steane code
    • Shor code
    • Color code
    • Surface code

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