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Combine results, apply controlled gates and measure to whole registers #23
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ewinston
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Adding tutorial language changes.
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* Renaming md * Moving template into .github
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Attempting to fix cyclic dependancy error
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add BaseSampler test
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* Oxidize TwoQubitWeylDecomposition This commit is part 1 of migrating the default 2q unitary synthesis to leverage parallel rust described in #8774, the eventual goal is to be able to run unitary synthesis in parallel for all the unitary matrices in a circuit in a single call from the `UnitarySynthesis` pass. This commit lays the initial groundwork for doing this by starting with the largest piece of the default 2q unitary synthesis code, the TwoQubitWeylDecomposition class. It migrates the entire class to be a pyclass in rust. There is still a Python subclass for it that handles the actual QuantumCircuit generation and also the string representations which are dependent on circuit generation. The goal of this is to keep the same basic algorithm in place but re-implement as-is in Rust as a common starting point for eventual improvements to the underlying algorithm as well as parallelizing the synthesis of multiple 2q unitary matrices. * Fix typo in closest_partial_swap() This commit fixes a typo the formula in the function. This is the same fix from #11953. Co-authored-by: Shelly Garion <[email protected]> * Run black and lint * Fix potential imaginary component sign flip in determinant * Run cargo fmt * Simplify using numpy eigh example comment * Add missing checks to decompose_two_qubit_product_gate() * Use rng first trial from Python implementation To aid in debugging and rule out rng differences causing different results this commit switches the first iteration of the randomized loop to have hard coded values that are identical to what the rng in numpy was returning. It is very unlikely that this will have any impact because the specific random numbers used shouldn't matter, this is mostly to just rule it out as a possibility in debugging the remaining test failures. * Fix whitespace in error message * Fix assert check * Fix missing multiplier on specialized weyl gate * Fix various mistakes This commit fixes two fundamental issues in the code. The first is the rz and ry matrix were being incorrectly constructed for a given angle. This caused the specializations that were computing the 1q matrices in the decomposition based on a product with these gates' matrices to return invalid results. The second issue is for the MirrorControlledEquiv specialization had the angles backwards for computing the matrix of the rz gates used in the products for the 1q matrices: `K1l = K1l @ Rz(K1r)` and `K1r = K1r @ Rz(K1l)` not `K1l = K1l @ Rz(K1l)` and `K1r = K1r @ Rz(K1r)` This was a typo from the original transcription. * Add pickle serialization support for TwoQubitWeylDecomposition * Remove duplicate conjs increment * Fix fSim abmb equivalent specialization * Add specialized test class back * Use QiskitError for backwards compatibility * Add release note * Make explicit specialization private * Use explicit inheritance from general decomposition (#23) * Apply suggestions from code review * Use smallvec for circuit sequence params and qubits * Use const 2x2 identity array where possible * circuit() and weyl_gate don't need a mutable self * Remove unnecessary inline annotations * Rename Specializations enum Specialization * Add back specialize() method and deprecate * Reorganize Python/Rust split to wrap rust instead of subclass This commit reworks the handoff between python and rust space for the TwoQubitWeylDecomposition class. Previously the Python side TwoQubitWeylDecomposition was a subclass of the Rust struct/pyclass of the same name. This was originally done to deduplicate the the getters for the attributes. However, because of the overhead associated with some of the rust getters and needing to do some import normalization to a numpy array the deduplication wasn't worth the cost. * Remove unecessary allocations * Rename DEFAULT_ATOL to ANGLE_ZERO_EPSILON * Stop obsessing over -0 * Handle enum to int conversion as method * Cleanup decompose_two_qubit_product_gate() * Use a trait for trace_to_fid() * Use an enum instead of string for euler basis * Fix release note typo * Improve magic basis transformation functions Co-authored-by: Jake Lishman <[email protected]> * Remove eigh() util function * Revert unecessary changes to callers of TwoQubitWeylDecomposition * Restore debug logging and add test assertions for it * Update qiskit/synthesis/two_qubit/two_qubit_decompose.py Co-authored-by: Lev Bishop <[email protected]> * Add specialization to __str__ * Add previous specialized class docstrings as inline rust code comments * Rename fSim variants and suprress rustc warning about camel case * Update tests for correct specialization enum name * Expose specialization enum via private class attr and use for __repr__ --------- Co-authored-by: Shelly Garion <[email protected]> Co-authored-by: Jake Lishman <[email protected]> Co-authored-by: Jake Lishman <[email protected]> Co-authored-by: Lev Bishop <[email protected]>
eliarbel
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Jul 30, 2024
Oxidize separable_circuits
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Description
circuit.measure(qr, cr)
now will apply measure operations between all qubits in a quantum register and all bits in a classical register. If registers are not the same size it will raise an exception. Eg if both a size 2 it will return qasmmeasure qr[0]->cr[0]; measure qr[1]->cr[1];
circuit.cx(qr1, qr2)
will apply CNOT gates between each qubit in registerqr1
to each qubit in registerqr2
. If registers are not the same size it will raise an exception. Eg. if both a size 2 it will return qasmcx(qr1[0], qr2[0]); cx(qr1[1], qr2[1]);
. The same change was made forcz, cy, ch, crz, cu1, cu3
.+
and+=
. Combining results with+
returns a new Result object (using deepcopy), combining with+=
appends the results from the second result to the first one. For results to be combined they must have the same'config'
value in their qobj.How Has This Been Tested?
test_combine_results
has been added totest_quantumprogram.py
.test_run_program
was updated to test for measurement between registers.Types of changes
Checklist: