Integrate `AdaptVQE` with Qiskit Terra's gradients
Opened this issue · 7 comments
Description
The goal of this project, is to refactor the implementation of AdaptVQE (in Qiskit Nature) to make use of the native gradient functionality included in Qiskit Terra.
History:
The adaptive VQE was originally implemented in Qiskit Aqua as the outcome of the Qiskit Hackathon Europe 2019, link. Since then, it has already been refactored multiple times during the migration to the GroundStateEigensolver interface and later transition to Qiskit Nature.
As it stands today, it still performs the gradient computation manually, see here, instead of leveraging Qiskit Terra's gradient functionality released as part of Terra 0.17.0
Link to the original issue: qiskit-community/qiskit-nature#123
Mentor/s
Co-mentoring by Max Rossmannek (@mrossinek), PhD Student, Qiskit Nature developer and Dariusz Lasecki (@dlasecki), Qiskit Applications software engineer
Type of participant
Requirements:
- familiarity with Qiskit
- proficiency in Python
- familiarity with Git/Github
Nice to have:
- knowledge of VQE
- knowledge of Qiskit Terra's operator gradients
Number of participants
1-2 people
Deliverable
The outcome of this project should be a PR to Qiskit Nature which refactors the AdaptVQE eigensolver to leverage Qiskit Terra's operator gradients.
@dlasecki @fs1132429 Can you please comment in the issue so that I can assign you?
@dlasecki @fs1132429 Can you please comment in the issue so that I can assign you?
Ok
yeah 👍
Here is the work update and a GIF of H2 unittest iteratively producing computed gradients for checkpoint 2.
Here is my final presentation slides 🙂
adapt_vqe_final.pdf