(LK-C-4) Add controlled QubitUnitary support to Lightning Kokkos #955
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Codecov ReportAttention: Patch coverage is
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## lk-control-gate-NQ-multiRZ #955 +/- ##
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+ Coverage 97.01% 97.04% +0.02%
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Files 221 221
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This was referenced Oct 23, 2024
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josephleekl
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Nov 12, 2024
| @@ -104,6 +111,71 @@ template <class Precision> struct multiQubitOpFunctor { | |||
| } | |||
| }; | |||
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| template <class Precision> struct NCMultiQubitOpFunctor { | |||
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This construction is similar to multiQubitOpFunctor
josephleekl
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Nov 12, 2024
| @@ -142,6 +214,51 @@ template <class PrecisionT> struct apply1QubitOpFunctor { | |||
| arr(i1) = matrix(0B10) * v0 + matrix(0B11) * v1; | |||
| } | |||
| }; | |||
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| template <class PrecisionT> struct applyNC1QubitOpFunctor { | |||
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and this with apply1QubitOpFunctor etc.
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multiphaseCFD,
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Before submitting
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All new features must include a unit test.
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Context:
Description of the Change:
This PR adds support for controlled QubitUnitary for Lightning Kokkos. There are specialized implementations for 1/2/3-qubits (
applyNC1/2/3QubitOpFunctor) and a general case implementation (NCMultiQubitOpFunctor). These functors are defined inMatrixGateFunctors.hpp. These are called byapplyControlledMatrixorapplyOperation/applyNCMultiQubitOpinStateVectorKokkos.hppBenefits:
Performance benchmarks for gates are shown here: https://www.notion.so/xanaduai/Lightning-Kokkos-Native-Controlled-Operation-Gate-Benchmarks-12ebc6bd17648017a2dcd237748b24fe
Possible Drawbacks:
Related GitHub Issues:
[sc-76776]