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Add functionality to compress orbital rotations into fewer layers of Givens rotations

Status: Open.

#585 In qiskit-community/ffsim;

· kevinsung opened on Feb 26, 2026

Regularization spikes in the linear method

Status: Open.

#552 In qiskit-community/ffsim;

· davidomanovic opened on Feb 11, 2026

Contraction-based linear operator for unrestricted UCCSD

needs upstream changeRequires a change in an upstream libraryRequires a change in an upstream library

Status: Open.

#549 In qiskit-community/ffsim;

· kevinsung opened on Feb 10, 2026

use deploy-pages action for documentation

Status: Open.

#509 In qiskit-community/ffsim;

· kevinsung opened on Nov 24, 2025

Bug: math domain error in _orbital_rotation_jw when decomposing OrbitalRotationJW

bugSomething isn't workingSomething isn't working

Status: Open.

#502 In qiskit-community/ffsim;

· davidomanovic opened on Nov 10, 2025

Add how-to guide on orbital optimization

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#471 In qiskit-community/ffsim;

· kevinsung opened on Sep 16, 2025

Add title and description to metadata of notebooks

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#468 In qiskit-community/ffsim;

· kevinsung opened on Sep 16, 2025

Add complex-valued unrestricted UCCSD ansatz

Status: Open.

#461 In qiskit-community/ffsim;

· kevinsung opened on Sep 12, 2025

Add tutorial on creating a variational ansatz

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#445 In qiskit-community/ffsim;

· kevinsung opened on Aug 15, 2025

Add LUCJ ansatz as parameterized Qiskit circuit

Status: Open.

#411 In qiskit-community/ffsim;

· kevinsung opened on Jun 15, 2025

Support spinless Jordan-Wigner transformation

Status: Open.

#408 In qiskit-community/ffsim;

· kevinsung opened on Jun 13, 2025

Implement other protocols for SingleFactorizedHamiltonian

Status: Open.

#406 In qiskit-community/ffsim;

· kevinsung opened on Jun 5, 2025