qe-qulacs

What is it?

qe-qulacs is an Orquestra module that allows you to use Qulacs simulator in your Orquestra workflows. It complies to the backend interface defined in the z-quantum-core.

Usage

Workflow

In order to use qe-qulacs in your workflow, you need to add it as an import in your Orquestra workflow:

imports:
- name: qe-qulacs
  type: git
  parameters:
    repository: "git@github.com:zapatacomputing/qe-qulacs.git"
    branch: "main"

and then add it in the imports argument of your step:

- name: my-step
  config:
    runtime:
      language: python3
      imports: [qe-qulacs]

Once that is done, you can use Qulacs simulator in a step of your workflow by specifying the backend-specs dictionary:

- name: my-step
  config:
    ...
  inputs:
    - backend_specs: '{"module_name": "qequlacs.simulator", "function_name": "QulacsSimulator"}'

You can pass additional arguments, such as n_samples, as parameters in the backend-specs dictionary.

Task

In order to use backend in the python code you can either simply create an object:

from qequlacs import QulacsSimulator
backend = QulacsSimulator()

or use backend-specs parameter to make your code work with other backends too:

from zquantum.core.utils import create_object
backend_specs = {{inputs.parameters.backend-specs}}
backend = create_object(backend_specs)

Development and contribution

You can find the development guidelines in the z-quantum-core repository.