tensorflow/quantum

Handle 3-qubit gates

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#636 opened on Oct 21, 2021

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Description

During the writing of #621 it became apparent that the new version of cirq 0.13.0 had changed the way gates are decomposed. Past quantumlib/Cirq#4167 some gates were decomposed into 3 qubit gates, which are not currently supported. Thus, #621 bypassed Cirq's default decomposition as a work around.

However, the work-around shouldn't say forever. Instead, we should:

  • Handle 3-qubit gates
  • Revert the work-around

Contributor guide

Research direction
Investigate how Cirq 0.13.0 decomposes gates into 3 qubit gates and modify the tensorflow quantum gate decomposition to support them, then revert the workaround from #621.
Tech stack
python
Domain
machine learning
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonCirqQuantum computing basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60