* T1 experiment: add A and B constants to fit, make wait times log-spaced

* lowercase variable names

* update tests

* update tests

* update tests

* update tests

* update tests

* update tests

* update tests

* informative assert statements in tests

* use float wait time

* typecheck

* nits

* add `MSGate` to top level

* mark `MSGate` as `not_yet_serializable`

* Revert "mark `MSGate` as `not_yet_serializable`"

This reverts commit ffdb3de.

* Test json serialization of cirq.MSGate without custom resolver

Not yet passing.

* Use the "cirq" namespace to JSON-serialize `cirq.MSGate`

The namespace-less cirq_type `MSGate` is used by `cirq_ionq.MSGate`.

---------

Co-authored-by: Tanuj Khattar <tanujkhattar@google.com>
Co-authored-by: Pavol Juhas <juhas@google.com>

…umlib#6505)

Review: @NoureldinYosri

…umlib#6432)

- Saw an old PR to replace Github with proper capitalization of GitHub.
- This PR does this on a more consistent basis and updates that PR.
- Replaces quantumlib#5961

…ntumlib#6512)

Bumps [black](https://github.com/psf/black) from 23.3.0 to 24.3.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@23.3.0...24.3.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Executed  check/format-incremental --all --apply

No change in code function.

…ib#6499)

Finalizes quantumlib#6513

…ntumlib#6501)

Bumps [follow-redirects](https://github.com/follow-redirects/follow-redirects) from 1.15.4 to 1.15.6.
- [Release notes](https://github.com/follow-redirects/follow-redirects/releases)
- [Commits](follow-redirects/follow-redirects@v1.15.4...v1.15.6)

---
updated-dependencies:
- dependency-name: follow-redirects
  dependency-type: indirect
...

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…t gateset (quantumlib#6439)

* Add documentation to cirq.decompose protocol regarding specific target gateset

* Clarify docstring

---------

Co-authored-by: Noureldin <noureldinyosri@google.com>

Since this is a singleton, it should use constant naming.
Since it should also stay consistent with other Sweeps (and for
backwards compatibility), we will keep the old name as well.

Fixes: quantumlib#5617

* Merge serializable_forms and deserialized_forms

* Documentation for adding gates

* Update documentation for adding CompilationTargetGatesets

…uantumlib#6524)

…tumlib#6521)

* add default device config key to grid device metadata

* Revert "add default device config key to grid device metadata"

This reverts commit bcd3533.

* initialize sampler with default device config key and add tests

* add properties to sampler

* dedupe DeviceConfigK, onewas renamed to DeviceConfigSelector

* spelling

* coverage

* address comments

* add fake engine context and client for testing

* lint

* use new FakeEngineContext

* typecheck

* lint , local env not catching CI errors

* signature of fakes  match real impls

* add logic to initialize default values instead of throwing value error

* lint

* rm logging and prefer to throw value error

Install development version of cirq, but with stable dependencies.
Avoid using the pip-install `--pre` option because it installs
pre-release of every direct and transitive dependency.

Example failure: https://github.com/quantumlib/Cirq/actions/runs/8444592307/job/23130415923
Pass with this change: https://github.com/quantumlib/Cirq/actions/runs/8460206027/job/23179852811

Related to quantumlib#6336

)

Bumps [express](https://github.com/expressjs/express) from 4.18.1 to 4.19.2.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@4.18.1...4.19.2)

---
updated-dependencies:
- dependency-name: express
  dependency-type: indirect
...

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Update instructions to use `pip install cirq~=1.0.dev` for cirq pre-release.
This matches the latest pre-release with the major version 1.

Avoid using the pip-install `--pre` option as it applies to all
direct and transitive dependencies that get installed with cirq.

Version limit on mpmath is unnecessary after quantumlib#6534 because
cirq pre-releases are now installed with stable dependencies.

This reverts commit e11132e (quantumlib#6477).

Related to quantumlib#6475

* Add FSimViaModelTag

* Add json resolver

* Address the comment

- These simulators do not use density matrices.

Fixes: quantumlib#6225

…antumlib#6539)

* Add Serialization and Deserialization Support of FSimViaModelTag.

* Fix the lint

* Update program_pb2.pyi

This PR introduces the abstraction for Gauge compilation as well as implementation for Sycamore gate, CZ gate, SqrtCZ gate, ZZ (a.k.a spin inversion), ISWAP gate, and SQRT_ISWAP gate

Recent GHA runner images require docker-compose v2.

Refs:
https://github.com/actions/runner-images/blob/ubuntu20/20240401.4/images/ubuntu/Ubuntu2004-Readme.md
https://docs.docker.com/compose/migrate/

Fixes quantumlib#6546

* Add FSimViaModel Gate

* Update the name

* Add serialization on grid device

* Fix the test

Fixes: quantumlib#6498

In order to avoid the conflict of requirement specs for packages that need older scipy
just require that scipy is pinned to versions before 1.13.

For previous context for scipy ~=1.12 see quantumlib#6545 and quantumlib#6543

…aQid` (quantumlib#6554)

* Bugfix in comparison_key and nicer with_dimension of _BaseAncillaQid

* Fix pylint

…b#6536)

Not needed after quantumlib#6534 as cirq pre-releases are installed
with stable dependencies.

* Add failing repr tests for CleanQubit and BorrowableQubit with prefix

* Quote prefix string in repr of `_BaseAncillaQid` classes

…ib#6530)

Use more readable rendering of tagged operations in diagrams.

Fixes: quantumlib#6411

…mlib#6556)

This fixes failure of

check/pytest -n0 cirq-core/cirq/circuits/circuit_test.py::test_final_state_vector

which happened because normalization of a state vector at `np.complex64`
precision can subtly increase the overall round-off error.

Follow up to quantumlib#6522 and quantumlib#6402

Bumps [tar](https://github.com/isaacs/node-tar) from 6.1.11 to 6.2.1.
- [Release notes](https://github.com/isaacs/node-tar/releases)
- [Changelog](https://github.com/isaacs/node-tar/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-tar@v6.1.11...v6.2.1)

---
updated-dependencies:
- dependency-name: tar
  dependency-type: indirect
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…b#6561)

Also show status summary of executed checks.

* Add Quantum Engine support for cirq.CZPowGate

* build protos

* update test

* update test

* add _CZ_POWER_GATE_FAMILY and keep _CZ_GATE_FAMILY

* small revert to original

* black

* update test

* update test

* update test

* add _CZ_POWER_TARGET_GATES

* update target gateset

* update test

* update gatesets

* update gatesets

* update gatesets

* update test

* update test

* update test

* POW instead of POWER

* POW instead of POWER

…b#6565)

* Add UNKNOWN status code to retryable errors.

* Update test

* Revert unintended changes.

* More removals.

* Lint formatting

Adjusted the AQT backend so that it works with the new AQT Arnica API. We also updated the gateset to reflect what we support.
As we made an extension to the API, we were able to add a feature that lists the workspaces and resources that are available to a user. We also updated tests and documentation accordingly.

Fixes quantumlib#6379

…tumlib#6578)

Problem: macos-latest currently does not provide Python 3.10
Workaround: temporarily switch to the previous runner macos-13

Fixes quantumlib#6573
Related to quantumlib#6577

…ib#6575)

* removed deprecated processor_ids in Engine, EngineProgram and EngineClient

* Made processor_id required, engine.md updated

* Update engine.md

removed the `[]` for processor_id

* processor_id required in Engine, omitted a condition in EngineClient

* Format and lint changes made

---------

Co-authored-by: Pavol Juhas <juhas@google.com>

* set maxsize for request queue

* add max message size

…in inversion gauge (quantumlib#6571)

…6581)

…uantumlib#6586)

Problem: Python 3.12 requires quimb-1.8.0, but quimb-1.8.0 cannot
evaluate path-info for TensorNetwork consisting of a scalar Tensor.

Solution: Skip path-info evaluation for scalar TensorNetwork.
Path-info is used for RAM estimation only which is not a problem
for scalar TensorNetwork-s.

This fixes unit test failure for
cirq-core/cirq/contrib/quimb/grid_circuits_test.py::test_tensor_expectation_value

Ref: jcmgray/quimb#231

- Fix attribute error in `engine_test.py::test_create_context`
- Adjust package presence assertion in `test_isolated_env_cloning`
- Bump up to virtualenv>=20.23, filelock~=3.1, pylatex~=1.4
- Bump up to grpcio-tools~=1.59.0 and recompile protos
- Relax qiskit-aer requirement to qiskit-aer~=0.12.0.  Allow qiskit-aer-0.12.0
  which has source archive on PyPI and can be installed for Python 3.12.
- Bump up to quimb~=1.7 which installs correctly with Python 3.12
  Remove quimb-only dependencies from our requirements, let
  quimb sort out its dependencies itself.
- CI - add pytest jobs with Python 3.12
- Skip mysteriously failing test of Contract-a-Grid-Circuit.ipynb

Fixes quantumlib#6460

- Raise exception if running with Python <= 3.9.x
- Clean up checks and notes relevant for old Pythons
- Bump up to numpy~=1.22 which is effectively the minimum version
  that works with Python 3.10.  We are a bit more permissive than
  NEP 29 which suggests numpy-1.23+.

Fixes: quantumlib#6463
Ref: https://numpy.org/neps/nep-0029-deprecation_policy.html

Problem: `test_isolated_packages` may run clashing parallel builds
of a local `cirq_core` wheel.

Solution: Run pip-install with the `--no-clean` option so parallel
builds do not delete active files.

Also invoke isolated_packages_test.py with `--enable-slow-tests` in CI
to include non-slow tests if ever added to that file.

* Suppress superfluous warnings from numpy

- On MacOS, with numpy ~1.26, np.linalg.det gives
spurious warnings when passed a complex array.
- Suppress these warnings, as they are just annoying
and do not signify anything.

Problem: `test_isolated_packages.py` is still flaky and can fail on
parallel builds of a local `cirq_core` wheel.

Solution: Use per-worker copy of the cirq-core sources so that parallel
builds do not have conflicting build files.

Follow-up to quantumlib#6593

Remove top-version limits on the pytest-related package.
These pins were introduced a while ago and are hopefully
not needed anymore.

Require coverage>=7.4 which is the first minor release with
the updated test-passing output from `coverage annotate`.

* Create generalized_uniform_superposition_gate.py

 Creates a generalized uniform superposition state, $\frac{1}{\sqrt{M}} \sum_{j=0}^{M-1}  \ket{j} $ (where 1< M <= 2^n), 
    using n qubits, according to the Shukla-Vedula algorithm [SV24].

    Note: The Shukla-Vedula algorithm [SV24] offers an efficient approach for creation of a generalized uniform superposition 
    state of the form, $\frac{1}{\sqrt{M}} \sum_{j=0}^{M-1}  \ket{j} $, requiring only $O(log_2 (M))$ qubits and $O(log_2 (M))$ 
    gates. This provides an exponential improvement (in the context of reduced resources and complexity) over other approaches in the literature.

Reference:
[SV24] A. Shukla and P. Vedula, “An efficient quantum algorithm for preparation of uniform quantum superposition states,” 
 Quantum Information Processing, 23(38): pp. 1-32 (2024).

updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Noureldin <noureldinyosri@google.com>

* add internal gate to device proto

* build protos

* tests pass

* add docstring

* build protos

* build protos

- Fix syntax error in `docs/noise/_index.yaml`
- Stop including deleted yaml file
- Format with the yaml_format Google tool

Fixes quantumlib#6587

- Update the stale list of pre-release notebooks by
  dropping notebooks that work with the last release 1.3.0
- Enable notebook tests that pass at Cirq HEAD
- Fix old instructions on installing pre-release cirq
- Add missing import to examples/stabilizer_code.ipynb

Ref: https://github.com/quantumlib/Cirq/blob/main/docs/dev/notebooks.md

…lib#6589)

- Avoid passing an empty string argument to `check/format-incremental`
  when invoked from `check/all`

- Improve validation of the git-revision argument in check scripts by
  allowing git tags that resolve to a commit

- Fix invalid use of `?` in egrep pattern

- Make check/mypy pass in the dev.env.txt virtual environment