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.
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.
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: EasyThis quantum algorithm for solving combinatorial optimization problems alternates between a cost Hamiltonian and a mixer Hamiltonian.
Difficulty: MediumThis sampling problem with photons in linear optical networks was proven computationally hard before random circuit sampling was proposed.
Difficulty: HardThis physicist introduced a thought experiment involving a cat in a box to illustrate the strange implications of quantum superposition.
Difficulty: EasyThis quantum error correction code, developed at Caltech, can correct any single-qubit error using only 5 physical qubits.
Difficulty: MediumThis operator formalism describes noisy quantum channels using a set of operators that map density matrices while preserving trace and positivity.
Difficulty: HardThis company's quantum computing platform is called Qiskit, and they have made quantum computers accessible via the cloud.
Difficulty: EasyThis popular error correction code arranges qubits on a 2D grid and is considered the most practical path to fault-tolerant quantum computing.
Difficulty: Medium