Quil (instruction set architecture)
Quil is a quantum instruction set architecture that first introduced a shared quantum/classical memory model. It was introduced by Robert Smith, Michael Curtis, and William Zeng in A Practical Quantum Instruction Set Architecture. Many quantum algorithms (including quantum teleportation, quantum error correction, simulation, and optimization algorithms) require a shared memory architecture. Quil is being developed for the superconducting quantum processors developed by Rigetti Computing through the Forest quantum programming API. A Python library called
pyQuil was introduced to develop Quil programs with higher level constructs. A Quil backend is also supported by other quantum programming environments.
# Create Bell Pair H 0 CNOT 0 1 # Teleport CNOT 2 0 H 2 MEASURE 2  MEASURE 0  # Classically communicate measurements JUMP-UNLESS @SKIP  X 1 LABEL @SKIP JUMP-UNLESS @END  Z 1 LABEL @END
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- Farhi, Edward; Goldstone, Jeffrey; Gutmann, Sam (2014-11-14). "A Quantum Approximate Optimization Algorithm". arXiv:1411.4028 [quant-ph].
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