Qiskit / qiskit / 27151164394

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Commit Message

Extend litinski transformation for all Pauli rotations (#15974)

* extend litinski transformation for rx and ry

* replace pauli str by pauli_z, pauli_x

* add comments on the pauli

* add a test for two-qubit cliffords

* replace get_inverse_pauli by evolve_single_qubit_pauli_by_clifford

* minor fix

* the test_two_qubit_evolve_clifford_gate now checks circuit equality

* simplify function name to evolve_single_qubit_pauli

* update comments

* fix misprint

* add a basic Pauli class. add pauli_compose function

* fix year

* add evolve_pauli_by_clifford

* update dense_pauli.rs code following review

* add some more tests for pauli I

* handle PPR gates

* formatting

* add a helper function to pad paulis

* use tests module in rust

* handle PPM gates

* update tests for PPR/PPM to check circuit equality

* unify PPR/PPM tests

* add a function unpad_pauli

* update tests for unpad pauli, add test based on Litinski's paper

* formatting

* update gates in Litinski's example test

* combine Litnski's paper tests

* add append_rx, append_ry, append_rz to the clifford rust class

* make function public

* litinski transformation now handles RX/RY/RZ with pi/2 angles as cliffords

* add tests with RX/RY/RZ gates and pi/2 angles

* remove print

* formatting

* no need to make the module public

* add append_ppr method to clifford class

* litinski now handles PPR with pi/2 angles as cliffords

* add tests for PPR with pi/2 angles

* enhance the docstring

* add release notes

* add a test for PPRs with and w/o pi/2 angles

* move modulo 4 to clifford class from litinski

* update comments

* update docstring

* update test_qft_circuits

* change set to list in test

* enhance clifford.append_ppr to handle pauli I terms

* update PPR to use synthesis code

* update PPM to use synthesis code

* formatting

* remove dense_pauli.rs

* update comments

* add clifford function to remove code duplication

* add clifford function to remove code duplication

*... (continued)

Coverage Stats

304 of 321 new or added lines in 5 files covered. (94.7%)

6 existing lines in 4 files now uncovered.

109512 of 125213 relevant lines covered (87.46%)

959059.67 hits per line