quantumlib / OpenFermion

The electronic structure package for quantum computers.
Apache License 2.0
1.51k stars 372 forks source link

Hubbard model notebook is flaky #870

Open fdmalone opened 6 months ago

fdmalone commented 6 months ago

From #869 we see some regression with FQE in the sense that the Taylor series might not converge. It's not clear when this broke or if it's a flaky numerical thing (too tight a threshold). There are a few options:

  1. Update FQE to accept a threshold
  2. Figure out if this is flaky or some external library update somewhere which lead to worsened precision.

At the very least we should test OUR notebooks where possible as part of some nightly tests.