Books

Manning - Building Quantum Software with Python

• Gist

  • The state of a quantum computation consists of a probability with direction for each possible outcome.
  • Elementary computing instructions change pairs of probabilities with direction in parallel.
  • The probabilities determine the frequency of corresponding measurement outcomes when the same computation is repeated.
  • The measurement outcome is the only available data from a quantum computation.
  • Before measurement, the quantum system encoding the computation is in a state of superposition of possible outcomes.
  • After a measurement, the state of the system collapses into a state where the measured outcome has a probability of 1 and the other outcomes have a probability of 0.