Matthew Harrigan

Temporarily omitted as we straighten out the module structure

This issue tracks problems that had to be worked around to bump our Cirq version from 1.4 onwards in #1761. Note that many unit tests in the `qualtran.bloqs` quantum standard...

Notebook tests are slow

4

The notebooks test is the slowest CI check with the following 10 slowest notebooks ``` Slowest 10 notebooks: 210.25s /qualtran/bloqs/phase_estimation/phase_estimation_of_quantum_walk.ipynb 62.87s /qualtran/bloqs/hamiltonian_simulation/hamiltonian_simulation_by_gqsp.ipynb 41.47s /qualtran/bloqs/rotations/quantum_variable_rotation.ipynb 26.64s /qualtran/bloqs/optimization/k_xor_sat/kikuchi_guiding_state_tutorial.ipynb 22.56s /qualtran/bloqs/arithmetic/error_analysis_for_fxp_arithmetic.ipynb 18.72s /qualtran/bloqs/phase_estimation/kaiser_window_state.ipynb...

### Background `BloqBuilder.map_soqs` is a somewhat advanced method generally used when you're building a program (composite bloq) from an existing bloq (potentially with modification). It's needed because each `BloqInstance` in...

If you are defining a bloq by defining a `Bloq` class and overriding `build_composite_bloq`, you've overriden the `signature` property and the system knows the quantum signature of the bloq. Therefore,...

Restrict what you're allowed to do with a `Soquet` during bloq building

3

When you're authoring a bloq, you define a method `build_composite_bloq(self, bb: BloqBuilder, ctrl, x, ...)`. The qualtran system will call this method suppling the `bb: BloqBuilder` argument _as well as_...

Convert ProgrammableRotationGateArray to an attrs dataclass

7

Every other bloq is an attrs dataclass, which makes it easier to inspect its classical compile-time parameters (attributes).

Quantum Interfaces

1

There may be several constructions for a bloq that ostensibly "does the same thing". How do we define a quantum interface and provide multiple implementations? How do we swap out...

Implement `IgnoreExtraWires`

1

Sometimes, you need to expose a consistent signature whether or not you're using all the registers that the interface demands. The `AutoPartition` bloq helps you take a register of a...

This was added to fix some type checking issues. - investigate usages of `dtype.iteration_length_or_zero` ... can the qcdtype python annotations be improved to narrow `dtype` to e.g. `BQUInt` and then...