guppylang 0.4.0

Pythonic quantum-classical programming language

Guppy is a quantum programming language that is fully embedded into Python. It allows you to write high-level hybrid quantum programs with classical control flow and mid-circuit measurements using Pythonic syntax:

from guppylang import guppy, qubit, quantum

guppy.load(quantum)

# Teleports the state in `src` to `tgt`.
@guppy
def teleport(src: qubit, tgt: qubit) -> qubit:
   # Create ancilla and entangle it with src and tgt
   tmp = qubit()
   tmp, tgt = cx(h(tmp), tgt)
   src, tmp = cx(src, tmp)

   # Apply classical corrections
   if measure(h(src)):
      tgt = z(tgt)
   if measure(tmp):
      tgt = x(tgt)
   return tgt