Ffsim

What's Changed
* Add real-valued UCCSD ansatz by kevinsung in https://github.com/qiskit-community/ffsim/pull/327
* better type handling for orb rot <-> params conversion by kevinsung in https://github.com/qiskit-community/ffsim/pull/329
* add missing argument documentation by kevinsung in https://github.com/qiskit-community/ffsim/pull/331
* Add function to return Slater determinant amplitudes by kevinsung in https://github.com/qiskit-community/ffsim/pull/330
* reorganize slater functions by kevinsung in https://github.com/qiskit-community/ffsim/pull/332
* fix numpy array handling in strings to addresses by kevinsung in https://github.com/qiskit-community/ffsim/pull/333
* support interaction pairs for random ucj ops by kevinsung in https://github.com/qiskit-community/ffsim/pull/335
* remove deprecated classes from variational module by kevinsung in https://github.com/qiskit-community/ffsim/pull/336
* enable check-untyped-defs mypy option by kevinsung in https://github.com/qiskit-community/ffsim/pull/337

**The following deprecated functions and classes were removed**:
- ffsim.GivensAnsatzOperator
- ffsim.RealUCJOperator
- ffsim.UCJOperator
- ffsim.qiskit.GivensAnsatzOperatorJW
- ffsim.qiskit.GivensAnsatzOperatorSpinlessJW
- ffsim.qiskit.UCJOperatorJW
- ffsim.random.random_ucj_operator

**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.47...v0.0.48

What's Changed
* fix sampling bit array with zero shots by kevinsung in https://github.com/qiskit-community/ffsim/pull/326


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.46...v0.0.47

What's Changed
* Support complex two-body tensor linear operator by kevinsung in https://github.com/qiskit-community/ffsim/pull/279
* ffsim sampler: return bit array directly by kevinsung in https://github.com/qiskit-community/ffsim/pull/324
* FfsimSampler: support global depolarizing noise by kevinsung in https://github.com/qiskit-community/ffsim/pull/325


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.45...v0.0.46

What's Changed
* add qiskit diag coulomb trotter gate by kevinsung in https://github.com/qiskit-community/ffsim/pull/304
* fix mypy by kevinsung in https://github.com/qiskit-community/ffsim/pull/309
* import FermionOperator from operators by kevinsung in https://github.com/qiskit-community/ffsim/pull/307
* add _fermion_operator_ for df hamiltonian by kevinsung in https://github.com/qiskit-community/ffsim/pull/308
* update blas-src by kevinsung in https://github.com/qiskit-community/ffsim/pull/312
* update ruff to 0.6.2 by kevinsung in https://github.com/qiskit-community/ffsim/pull/313
* just use assert and == in test by kevinsung in https://github.com/qiskit-community/ffsim/pull/315
* split Hubbard tests by kevinsung in https://github.com/qiskit-community/ffsim/pull/316
* delete some hubbard tests by kevinsung in https://github.com/qiskit-community/ffsim/pull/317
* add periodic_x and periodic_y to fermi-hubbard by kevinsung in https://github.com/qiskit-community/ffsim/pull/318
* Use Qiskit sphinx theme by kevinsung in https://github.com/qiskit-community/ffsim/pull/306
* docs: fix order of sections in qiskit gate decompositions notebook by kevinsung in https://github.com/qiskit-community/ffsim/pull/319
* support generating random complex double-factorized hamiltonian by kevinsung in https://github.com/qiskit-community/ffsim/pull/320
* Upgrade pyo3 to 0.21 by kevinsung in https://github.com/qiskit-community/ffsim/pull/322


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.44...v0.0.45

What's Changed
* add diag coulomb hamiltonian diag by kevinsung in https://github.com/qiskit-community/ffsim/pull/296
* Direct slater sampler by jrm874 in https://github.com/qiskit-community/ffsim/pull/257
* Add fswap gate by haimeng-zhang in https://github.com/qiskit-community/ffsim/pull/295
* slater sampler: use set instead of list by kevinsung in https://github.com/qiskit-community/ffsim/pull/299
* slater sampler: don't use np.ix_ by kevinsung in https://github.com/qiskit-community/ffsim/pull/300
* add ftol to linear method and change gtol convergence to match scipy by kevinsung in https://github.com/qiskit-community/ffsim/pull/302
* replace W with U for unitary by kevinsung in https://github.com/qiskit-community/ffsim/pull/303

New Contributors
* jrm874 made their first contribution in https://github.com/qiskit-community/ffsim/pull/257
* haimeng-zhang made their first contribution in https://github.com/qiskit-community/ffsim/pull/295

**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.43...v0.0.44

What's Changed
* UCJ: pad t amplitude initialization to requested n_reps by kevinsung in https://github.com/qiskit-community/ffsim/pull/294


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.42...v0.0.43