qn

A non-local system of qubits and a collection of thread-safe qubit transformations.

• Emulate entangled physical systems in concurrent code: measurements in one thread have immediate effect on measurements of entangled qubits in other parts of the system.

• Synchronization primitives and borrow checker assure thread-safety and uniqueness of qubits.

• Tensor structure of the Hilbert space allows for straightforward parallelization: we use rayon's parallel iterators to squeeze maximum performance out of CPU (what about GPU?):

  • Simple benchmarking suggests measurement of a single qubit in a 20 qubit register is already faster than with quest_bind. What about raw QuEST?

TODO

• Write gates/operators, expand test suite.
• Write intro:
  • quantum info perspective
  • system programming perspective
• Write example: A and B share a Bell state
• Write documentation and tutorial in README.md