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Merge branch 'develop' into feature/openqasm
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‎.github/workflows/publish_release.yml

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name: "Publish new release"
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on:
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workflow_dispatch:
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push:
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tags:
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- v[0-9]+.*
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packaging:
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name: Build wheels on ${{ matrix.os }}
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runs-on: ${{ matrix.os }}
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if: startsWith(github.ref, 'refs/tags/') || (github.event_name == 'pull_request' && github.event.pull_request.merged == true)
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if: startsWith(github.ref, 'refs/tags/') || (github.event_name == 'pull_request' && github.event.pull_request.merged == true) || github.event_name == 'workflow_dispatch'
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strategy:
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matrix:
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os: [ubuntu-20.04, windows-2019, macos-10.15]
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os:
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- ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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if: github.event_name != 'workflow_dispatch'
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- uses: actions/checkout@v2
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if: github.event_name == 'workflow_dispatch'
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with:
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ref: 'master'
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- name: Get history and tags for SCM versioning to work
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run: |
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git fetch --prune --unshallow
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git fetch --depth=1 origin +refs/tags/*:refs/tags/*
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- name: Extract version from tag name (Unix)
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if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') && runner.os != 'Windows'
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run: |
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TAG_NAME="${GITHUB_REF/refs\/tags\//}"
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VERSION=${TAG_NAME#v}
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echo "RELEASE_VERSION=$VERSION" >> $GITHUB_ENV
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# ========================================================================
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- name: Extract version from branch name (for release branches) (Unix)
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if: github.event_name == 'pull_request' && startsWith(github.event.pull_request.head.ref, 'release/') && runner.os != 'Windows'
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run: |
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BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
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VERSION=${BRANCH_NAME#release/}
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echo "RELEASE_VERSION=$VERSION" >> $GITHUB_ENV
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git tag v${RELEASE_VERSION} master
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git tag v${VERSION} master
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- name: Extract version from branch name (for hotfix branches) (Unix)
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if: github.event_name == 'pull_request' && startsWith(github.event.pull_request.head.ref, 'hotfix/') && runner.os != 'Windows'
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run: |
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BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
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VERSION=${BRANCH_NAME#hotfix/}
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git tag v${VERSION} master
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echo "RELEASE_VERSION=$VERSION" >> $GITHUB_ENV
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git tag v${RELEASE_VERSION} master
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- name: Extract version from tag name (Windows)
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if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') && runner.os == 'Windows'
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run: |
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$TAG_NAME = $GITHUB_REF -replace "refs/tags/",""
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$VERSION = $TAG_NAME -replace "v",""
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Write-Output "RELEASE_VERSION=$VERSION" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
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# ------------------------------------------------------------------------
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- name: Extract version from branch name (for release branches) (Windows)
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if: github.event_name == 'pull_request' && startsWith(github.event.pull_request.head.ref, 'release/') && runner.os == 'Windows'
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run: |
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$BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
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$VERSION = $BRANCH_NAME -replace "release/",""
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git tag v${VERSION} master
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Write-Output "RELEASE_VERSION=$VERSION" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
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git tag v${RELEASE_VERSION} master
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- name: Extract version from branch name (for hotfix branches) (Unix)
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- name: Extract version from branch name (for hotfix branches) (Windows)
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if: github.event_name == 'pull_request' && startsWith(github.event.pull_request.head.ref, 'hotfix/') && runner.os == 'Windows'
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run: |
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$BRANCH_NAME="${{ github.event.pull_request.head.ref }}"
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$VERSION = $BRANCH_NAME -replace "hotfix/",""
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git tag v${VERSION} master
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Write-Output "RELEASE_VERSION=$VERSION" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
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git tag v${RELEASE_VERSION} master
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- name: Build wheels
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uses: joerick/[email protected]
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env:
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CIBW_ARCHS: auto64
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CIBW_SKIP: cp27-* pp* cp35-*
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CIBW_BEFORE_BUILD: python -m pip install pybind11
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# ========================================================================
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- name: Build source distribution
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if: runner.os == 'Linux'
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name: packages
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path: ./wheelhouse/*
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release:
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name: Publish new release
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runs-on: ubuntu-latest
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needs: packaging
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needs:
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- packaging
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steps:
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- name: Extract version from tag name (workflow_dispatch)
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if: github.event_name == 'workflow_dispatch'
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run: |
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TAG_NAME=$(git describe --tags `git rev-list --tags --max-count=1`)
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VERSION=${TAG_NAME#v}
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echo "RELEASE_VERSION=$VERSION" >> $GITHUB_ENV
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- name: Extract version from tag name
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if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
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run: |
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echo "RELEASE_VERSION=$VERSION" >> $GITHUB_ENV
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# ------------------------------------------------------------------------
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# Checkout repository to get CHANGELOG
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- uses: actions/checkout@v2
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if: github.event_name != 'workflow_dispatch'
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- uses: actions/checkout@v2
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if: github.event_name == 'workflow_dispatch'
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with:
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ref: 'master'
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# ------------------------------------------------------------------------
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# Downloads all to directories matching the artifact names
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- uses: actions/download-artifact@v2
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upload_to_pypi:
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name: Upload to PyPI
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runs-on: ubuntu-latest
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needs: release # Only upload to PyPi if everything was successful
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needs: release
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steps:
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- uses: actions/setup-python@v2
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master_to_develop_pr:
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name: Merge master back into develop
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runs-on: ubuntu-latest
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needs: release # Only create PR if everything was successful
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needs:
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- release
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- upload_to_pypi
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steps:
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- name: Merge master into develop branch
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uses: thomaseizinger/[email protected]

‎CHANGELOG.md

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@@ -9,12 +9,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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### Added
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- UnitarySimulator backend for computing the unitary transformation corresponding to a quantum circuit.
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- Added OpenQASMBackend to output QASM from ProjectQ circuits
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### Changed
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### Deprecated
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### Fixed
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- Prevent infinite recursion errors when too many compiler engines are added to the MainEngine
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### Removed
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### Repository
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- Fix GitHub workflow for publishing a new release
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## [0.6.0] - 2021-06-23
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### Added

‎examples/unitary_simulator.py

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# -*- coding: utf-8 -*-
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# Copyright 2021 ProjectQ-Framework (www.projectq.ch)
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
14+
# limitations under the License.
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# pylint: skip-file
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"""Example of using the UnitarySimulator."""
18+
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import numpy as np
21+
22+
from projectq.backends import UnitarySimulator
23+
from projectq.cengines import MainEngine
24+
from projectq.meta import Control
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from projectq.ops import All, X, QFT, Measure, CtrlAll
26+
27+
28+
def run_circuit(eng, n_qubits, circuit_num, gate_after_measure=False):
29+
"""Run a quantum circuit demonstrating the capabilities of the UnitarySimulator."""
30+
qureg = eng.allocate_qureg(n_qubits)
31+
32+
if circuit_num == 1:
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All(X) | qureg
34+
elif circuit_num == 2:
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X | qureg[0]
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with Control(eng, qureg[:2]):
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All(X) | qureg[2:]
38+
elif circuit_num == 3:
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with Control(eng, qureg[:2], ctrl_state=CtrlAll.Zero):
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All(X) | qureg[2:]
41+
elif circuit_num == 4:
42+
QFT | qureg
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eng.flush()
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All(Measure) | qureg
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47+
if gate_after_measure:
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QFT | qureg
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eng.flush()
50+
All(Measure) | qureg
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def main():
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"""Definition of the main function of this example."""
55+
# Create a MainEngine with a unitary simulator backend
56+
eng = MainEngine(backend=UnitarySimulator())
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58+
n_qubits = 3
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60+
# Run out quantum circuit
61+
# 1 - circuit applying X on all qubits
62+
# 2 - circuit applying an X gate followed by a controlled-X gate
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# 3 - circuit applying a off-controlled-X gate
64+
# 4 - circuit applying a QFT on all qubits (QFT will get decomposed)
65+
run_circuit(eng, n_qubits, 3, gate_after_measure=True)
66+
67+
# Output the unitary transformation of the circuit
68+
print('The unitary of the circuit is:')
69+
print(eng.backend.unitary)
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# Output the final state of the qubits (assuming they all start in state |0>)
72+
print('The final state of the qubits is:')
73+
print(eng.backend.unitary @ np.array([1] + ([0] * (2 ** n_qubits - 1))))
74+
print('\n')
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# Show the unitaries separated by measurement:
77+
for history in eng.backend.history:
78+
print('Previous unitary is: \n', history, '\n')
79+
80+
81+
if __name__ == '__main__':
82+
main()

‎projectq/backends/__init__.py

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from ._aqt import AQTBackend
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from ._awsbraket import AWSBraketBackend
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from ._ionq import IonQBackend
39+
from ._unitary import UnitarySimulator

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