phase-estimation

page_type	sample
languages	qsharp python csharp
products	qdk
description	This sample demonstrates using Bayesian inference to learn phases of quantum operations.
urlFragment	iterative-phase-estimation

Iterative Phase Estimation

This sample demonstrates iterative phase estimation using Bayesian inference to provide a simple method to perform the classical statistical analysis.

Prerequisites

• The Microsoft Quantum Development Kit.

Running the Sample

This sample can be run in a number of different ways, depending on your preferred environment.

Python in Visual Studio Code or the Command Line

At a terminal, run the following command:

python host.py

C# in Visual Studio Code or the Command Line

At a terminal, run the following command:

dotnet run

C# in Visual Studio 2019

Open the folder containing this sample in Visual Studio ("Open a local folder" from the Getting Started screen or "File → Open → Folder..." from the menu bar) and set PhaseEstimationSample.csproj as the startup project. Press Start in Visual Studio to run the sample.

Manifest

• PhaseEstimationSample.csproj: Main C# project for the example.
• Host.cs: C# code to call the operations defined in Q#.
• host.py: a sample Python program to call the Q# phase estimation operation.
• BayesianPhaseEstimation.qs: The Q# implementation of iterative phase estimation and Bayesian inference.