Summary

  • 1 minute

Congratulations! You successfully created your first Q# program.

The Quantum Development Kit provides you with everything you need to start writing and verifying your own quantum algorithms right away.

In this module, we covered a lot. Here are a few key concepts to keep in mind:

  • A Q# program must have an entry point, which is the Main operation.
  • In Q#, you allocate a qubit by using the use keyword and the Qubit type. The qubit is always in the $\ket{0}$ state.
  • Superposition is a quantum phenomenon where a qubit is in a combination of both zero and one states. If a qubit is in the $\ket{0}$ state, you can put it into superposition by using the H operation.
  • In Q#, you use the M operation to measure qubits in the Z-basis. When measured, a qubit goes from being in superposition to one of the classical states.
  • You can combine classical code with quantum code. This combination enables you to perform quantum computations and work with the results, all in the same program.

Next steps

The Quantum Development Kit includes a set of built-in Q# samples that you can use to learn more about Q# and quantum computing. To view the samples, open a blank Q# file in Visual Studio Code and type sample, then select the sample you want to view from the list of options. For example, you can find the Q# code in unit 2 under "Random Bit sample".

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