Craig Gidney

Write test to detect unescaped double-underscore and single-underscore values in docstrings

6

These are almost always intended to refer to magic methods, but markdown/rst/etc interpret it as emphasis and remove the underscores. We should detect that this is happening and raise errors.

How do we make circuit translation and circuit simulation fit together in a nice way?

1

Example technical challenges: - I simulated a circuit, but the simulation was noisy. What noise was added? - I optimized a circuit, and there was a problem with the output....

Define a destructive measurement channel

3

Related to https://github.com/quantumlib/Cirq/issues/882 but I see that issue as an optimization of the simulator as opposed to defining a channel.

Create an example using a tested jupyter notebook

1

Check out how openfermioncirq managed to test the notebooks.

Make LaTex/PDF images better, stop using qcircuit

4

Currently, Cirq's pdf output is in contrib because it's not particularly good. The margins are messed up, there's no boxing of multiqubit gates, etc, etc. Someone needs to go over...

Add support for "flat_sample": sampling without keys for performance

11

Currently Cirq has a bit of a performance problem. One of the contributing factors to this is that there are very few "escape hatches" that you can use to opt...

Switch from using globalshift to using individual phases for each eigenspace

10

Currently it is not possible for e.g. XPowGate to represent the operation |-> angle in half turns = phase exponent, |+> phase angle in half turns = phase exponent *...

_mixture_ should be able to return List[Tuple[float, Operation]] instead of List[Tuple[float, matrix]]

4

Where it is required that the operations be unitary. This is beneficial because it allows you to return mixtures of large operations, without having to generate their unitaries. Fixing this...

Automatically generate documentation related to protocols

1

Here's a tricky one. Currently, there's not a good place in the documentation for tasks like: - What's the signature for "_apply_unitary_", again? - What are all the magic methods...