Create `exponential` wrapper class

[AthenaCaesura]

Problem

Our codebase implements gates through the abstract Gate protocol. It is common for our scientists to make use of exponentials of these gates. A simple application would be to find a solution to the time-independent shrodinger equation. Recently, we have created a new custom gate whenever we needed to raise a matrix to a power, but it would be nice to have a function which implements this directly.

Solution Description

Implement a class exponential wrapper around the Gate Protocol. We only need to calculate exponentials for gates without free parameters, so make sure your gate you are wrapping around does not have them. tip: exponential should be implemented similarly to the dagger wrapper class.

You will either have to test that the wrapped gate is hermitian or implement gates which are non-unitary. Currently, it isn't known whether or not gates can be non-unitary so you might have to test for yourself. 🙂

Deliverables

• [ ] exponential wrapper around Gates as described above.
• [ ] Write tests for above class

Affected repo: orquestra-quantum

[ixime]

Hi, I would want to give it a try. Do you have office hours at unitaryhack? It's the first time I see your repo

[mstechly]

Hi @ixime ! Yes we have office hours – I have filled in the form but it doesn't show up in the calendar yet.

[mstechly]

@ixime They are now live at https://unitary.fund/talks.html

[ixime]

Thanks @mstechly !

[mstechly]

Closed by https://github.com/zapatacomputing/orquestra-quantum/pull/28