Support multi-diagonal operator conversion for dynamics #2993
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Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com>
Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com>
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Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com>
Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com>
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- Add missing docstrings. - Rename variables for clarity. - Refactor code to reduce duplicate. Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com>
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CUDA Quantum Docs Bot: A preview of the documentation can be found here. |
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CUDA Quantum Docs Bot: A preview of the documentation can be found here. |
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CUDA Quantum Docs Bot: A preview of the documentation can be found here. |
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CUDA Quantum Docs Bot: A preview of the documentation can be found here. |
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* Remove unused python imports and add multi-diagonal operator conversion Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> * Code format Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> * Fix a comment Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> * Fix clang build Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> * Add docs Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> * Add docs Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> * Address code review comments - Add missing docstrings. - Rename variables for clarity. - Refactor code to reduce duplicate. Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> --------- Signed-off-by: Thien Nguyen <thiennguyen@nvidia.com> Signed-off-by: Anna Gringauze <agringauze@nvidia.com>
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Description
Built upon #2986, we now enable automatic conversion from cuda-q operators (boson, spin, fermion) to cudensitymat multi-diagonal format.
Two control knobs:
Minimum dimension: ability to skip multi-diagonal (always using dense) if the sub-system dimension is less than this.
Max number of diagonals: if the number of diagonals in the multi-diagonal representation exceeds this threshold, just use dense.
Some initial performance data for the Jaynes–Cummings with various dimensions (
N) of the Fock space.i.e., 2-3x speedup.