We have utilized the simple game of Pacman to illustrate and understand the complex concepts of Quantum Mechanics. We made this for the IonQ + Microsoft Joint Challenge @ MIT iQuHACK 2022 iQuHACK 2022!
- Pygame (tested with 2.0.3)
- Qiskit Aer (tested with 0.10.2)
Just run main.py after installing dependencies! Move Pacman using the arrow keys.
- The objective is to score as many points as possible, while avoiding dying
- Pacman has an associated quantum state, and the ghosts perform measurements in X, Y or Z basis. If the measurement result is a 0, Pacman dies. If it's a one, Pacman starts in the post-measurement state. The measurement results and post measurement states are obtained by running the relevant code on
a real IonQ quantum computer, accessed via Azure!on a Qiskit Aer `statevector_simulator'. - There are gates strewn throughout the maze. If Pacman meets an X, Y or Z gate, the gate acts on the Pacman's state, and Pacman then is in the state obtained after the gate acts.
- The gates and ghosts disappear after interacting with Pacman.
- The score is increased whenever Pacman encounters an H gate followed by a CNOT gate, which allows Pacman to create Bell pairs.
- Since Pacman can use H and CNOT gates to generate Bell pairs, it can run a teleportation protocol between two points. This adds another quantum aspect to the game
- Currently the game has no lives counter, we can add that.
- Other gates like rotation gates
- Multiple levels
- Multiqubit states that will add new gates and gameplay features
- Search algorithm for ghosts, currently they just move randomly.
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