Ffsim

What's Changed
* add default values for orbs and shots to sample_state_vector by kevinsung in https://github.com/qiskit-community/ffsim/pull/261
* support non-concatenated bitstrings by kevinsung in https://github.com/qiskit-community/ffsim/pull/262
* add MolecularData.from_fcidump and deprecate MolecularHamiltonian.fcidump by kevinsung in https://github.com/qiskit-community/ffsim/pull/264


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.39...v0.0.40

What's Changed
* support open shell in MolecularData by kevinsung in https://github.com/qiskit-community/ffsim/pull/259
* Support JSON serialization for MolecularData by kevinsung in https://github.com/qiskit-community/ffsim/pull/258
* linear method: change default regularization to 1e-4 by kevinsung in https://github.com/qiskit-community/ffsim/pull/260


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.38...v0.0.39

What's Changed
* add from_fcidump and _approx_eq_ methods to MolecularHamiltonian by kevinsung in https://github.com/qiskit-community/ffsim/pull/243
* increase pyscf requirement to 2.4 by kevinsung in https://github.com/qiskit-community/ffsim/pull/245
* Add functions to return spin-separated RDMs by kevinsung in https://github.com/qiskit-community/ffsim/pull/248
* add conversions between addresses and strings as ints by kevinsung in https://github.com/qiskit-community/ffsim/pull/249
* Expose sample_state_vector by kevinsung in https://github.com/qiskit-community/ffsim/pull/250
* expose final_state_vector by kevinsung in https://github.com/qiskit-community/ffsim/pull/251
* rename random_statevector -> random_state_vector by kevinsung in https://github.com/qiskit-community/ffsim/pull/252
* Drop Python 3.8 by kevinsung in https://github.com/qiskit-community/ffsim/pull/254
* use np.ascontiguousarray and remove unnecessary copy by kevinsung in https://github.com/qiskit-community/ffsim/pull/255
* Validate UCJ dataclasses by kevinsung in https://github.com/qiskit-community/ffsim/pull/256


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.37...v0.0.38

What's Changed
* add complex phase to givens rotation by kevinsung in https://github.com/qiskit-community/ffsim/pull/236
* Givens ansatz by kevinsung in https://github.com/qiskit-community/ffsim/pull/237
* add spin-balanced num-num ansatz by kevinsung in https://github.com/qiskit-community/ffsim/pull/238
* Add diagonal Coulomb Hamiltonian class by bartandrews in https://github.com/qiskit-community/ffsim/pull/193
* Fix docstring for fermi_hubbard_1d by bartandrews in https://github.com/qiskit-community/ffsim/pull/199
* add full layers when initializing givens ansatz op from orbital rotation by kevinsung in https://github.com/qiskit-community/ffsim/pull/241
* Fix incorrect creation of fully parameterized Givens rotation network by kevinsung in https://github.com/qiskit-community/ffsim/pull/242


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.36...v0.0.37

What's Changed
* support spinless orbital rotation by kevinsung in https://github.com/qiskit-community/ffsim/pull/210
* support spinless states by kevinsung in https://github.com/qiskit-community/ffsim/pull/211
* support spinless diag coulomb evo by kevinsung in https://github.com/qiskit-community/ffsim/pull/212
* support spinless num op sum evo by kevinsung in https://github.com/qiskit-community/ffsim/pull/214
* add support for some spinless basic gates by kevinsung in https://github.com/qiskit-community/ffsim/pull/216
* add spinless support to qiskit module by kevinsung in https://github.com/qiskit-community/ffsim/pull/218
* add spinless UCJ operator by kevinsung in https://github.com/qiskit-community/ffsim/pull/219
* implement apply_num_interaction using apply_num_op_sum by kevinsung in https://github.com/qiskit-community/ffsim/pull/221
* move one_hot to linalg module by kevinsung in https://github.com/qiskit-community/ffsim/pull/223
* handle notimplemented in apply unitary protocol by kevinsung in https://github.com/qiskit-community/ffsim/pull/225
* use spinless code in multireference by kevinsung in https://github.com/qiskit-community/ffsim/pull/224
* support spinless num-num, hop, fsim gates by kevinsung in https://github.com/qiskit-community/ffsim/pull/226
* merge orbital rotations in df trotter by kevinsung in https://github.com/qiskit-community/ffsim/pull/233
* Merge orbital rotations for UCJ operator apply unitary by kevinsung in https://github.com/qiskit-community/ffsim/pull/234


**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.35...v0.0.36

What's Changed
* molecular data: store irrep strings instead of integers by kevinsung in https://github.com/qiskit-community/ffsim/pull/180
* molecular data: molecular coefficients are not necessarily from HF by kevinsung in https://github.com/qiskit-community/ffsim/pull/181
* deprecate MolecularData.from_mole by kevinsung in https://github.com/qiskit-community/ffsim/pull/182
* remove deprecated function apply_on_site_num_num_interaction by kevinsung in https://github.com/qiskit-community/ffsim/pull/184
* Add two-dimensional Fermi-Hubbard model by bartandrews in https://github.com/qiskit-community/ffsim/pull/141
* add strings_to_indices function by kevinsung in https://github.com/qiskit-community/ffsim/pull/187
* add diagonal protocol for computing diagonal of linear operator by kevinsung in https://github.com/qiskit-community/ffsim/pull/188
* Remove usage of LU orbital rotation in favor of Givens by kevinsung in https://github.com/qiskit-community/ffsim/pull/190
* remove code related to LU decomposition orbital rotation by kevinsung in https://github.com/qiskit-community/ffsim/pull/191
* use tuple input to handle spin asymmetry instead of spin enum by kevinsung in https://github.com/qiskit-community/ffsim/pull/192
* support asymmetric spin for diagonal coulomb evolution by kevinsung in https://github.com/qiskit-community/ffsim/pull/194
* remove input validation for low-level gates by kevinsung in https://github.com/qiskit-community/ffsim/pull/198
* support numpy array input instead of tuple by kevinsung in https://github.com/qiskit-community/ffsim/pull/200
* Handle asymmetric alpha-beta for diag coulomb qiskit gate by kevinsung in https://github.com/qiskit-community/ffsim/pull/201
* Add spin-balanced UCJ operator and refactor spin-unbalanced UCJ by kevinsung in https://github.com/qiskit-community/ffsim/pull/208

New Contributors
* KPCOFGS made their first contribution in https://github.com/qiskit-community/ffsim/pull/179

**Full Changelog**: https://github.com/qiskit-community/ffsim/compare/v0.0.34...v0.0.35