Commits · 6213a4332c7e769e80197809cc90c91a8f36d77a · ORNL Quantum Computing Institute / xacc

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16 Jul, 2020 4 commits
- Implemented two-qubit block merging · 6213a433
  Nguyen, Thien Minh authored Jul 16, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  6213a433
- Added special cases in KAK decomposition · 2bac3215
  Nguyen, Thien Minh authored Jul 16, 2020
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To generate more optimal circuits for those special cases.
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  2bac3215
- Added a kitchen-sink test · 0999695f
  Nguyen, Thien Minh authored Jul 16, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  0999695f
- Simplified the gate scan routine · 685377e5
  Nguyen, Thien Minh authored Jul 16, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  685377e5
15 Jul, 2020 5 commits
- Completed single-qubit gate merge optimization pass · 86fafddd
  Nguyen, Thien Minh authored Jul 15, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  86fafddd
- Added validation for simplified ZYZ decomposition · 816d663f
  Nguyen, Thien Minh authored Jul 15, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  816d663f
- Implemented a method to simplify/optimize the Z-Y-Z decomposition · 45acd2b4
  Nguyen, Thien Minh authored Jul 15, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  45acd2b4
- Refactored the ZYZ decomposition inside KAK into a separate circuit · 20edde54
  Nguyen, Thien Minh authored Jul 15, 2020
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Used it in the optimization routine.
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  20edde54
- Initial set-up for some additional circuit optimization routines · d9e8194d
  Nguyen, Thien Minh authored Jul 15, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  d9e8194d
14 Jul, 2020 1 commit
- Merge pull request #226 from tnguyen-ornl/tnguyen/metric_tensor · 1d385171
  Mccaskey, Alex authored Jul 14, 2020
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Implemented Quantum Natural Gradients as a XACC gradient strategy service
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  1d385171
13 Jul, 2020 6 commits
- Need to link Armadillo w/ LAPACK for Linux build · 9b75018e
  Nguyen, Thien Minh authored Jul 13, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  9b75018e
- Added Python example for QNG · 7559d0e8
  Nguyen, Thien Minh authored Jul 13, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  7559d0e8
- Fixed some container indexing errors · 37dd0a59
  Nguyen, Thien Minh authored Jul 13, 2020
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Also, added an analytical test QNG
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  37dd0a59
- Added validation to QNG unit test using Pennylane example · 6241e419
  Nguyen, Thien Minh authored Jul 13, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  6241e419
- Constructed metric tensor using diagonal blocks · 771c263a
  Nguyen, Thien Minh authored Jul 13, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  771c263a
- Eliminated identity metric tensor observable kernels · de80cb05
  Nguyen, Thien Minh authored Jul 13, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  de80cb05
10 Jul, 2020 2 commits
- Set-up high level flow of QNG calculation · 543e216b
  Nguyen, Thien Minh authored Jul 10, 2020
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Need to assemble metric tensor from accelerator buffer data.
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  543e216b
- Using the correct Pauli Operator CTor · 5add3eb5
  Nguyen, Thien Minh authored Jul 10, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  5add3eb5
09 Jul, 2020 12 commits
- Fixed metric tensor circuit gen and added unit test · 1b7586d6
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  1b7586d6
- Implemented initialize based on new API · 047f1521
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  047f1521
- Merge branch 'master' into tnguyen/metric_tensor · 1929573c
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>

# Conflicts:
#	quantum/plugins/algorithms/gradient_strategies/GradientStrategyActivator.cpp
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  1929573c
- Merge pull request #225 from danclaudino/finite_differences · bdd44225
  Mccaskey, Alex authored Jul 09, 2020
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Implementation of finite difference gradients
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  bdd44225
- Work on metric tensor observable · 36cc4d9e
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  36cc4d9e
- Modified the layering scheme to make circuit gen more convenient · 280aa637
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  280aa637
- Setup pre- and post- operation lists for QNG layers · c2f71bc7
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  c2f71bc7
- Added unit testing for circuit layering · 43fe8faa
  Nguyen, Thien Minh authored Jul 09, 2020
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Also, fixed a bug revealed by the unit test.
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  43fe8faa
- Added initialize() to AlgorithmGradientStrategy and renamed passObsExpValue() · a8186e01
  Daniel Claudino authored Jul 09, 2020
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Signed-off-by: Daniel Claudino <6d3@ornl.gov>
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  a8186e01
- Added layering and operation generator util · 87a0d31b
  Nguyen, Thien Minh authored Jul 09, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  87a0d31b
- Added comments to gradient strategies · f466bee1
  Daniel Claudino authored Jul 09, 2020
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Signed-off-by: Daniel Claudino <6d3@ornl.gov>
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  f466bee1
- Implementation of finite difference gradients · 645f1184
  Daniel Claudino authored Jul 09, 2020
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Signed-off-by: Daniel Claudino <6d3@ornl.gov>
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  645f1184
08 Jul, 2020 2 commits
- Boilerplate for QNG · bb5c499f
  Nguyen, Thien Minh authored Jul 08, 2020
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Also, fixed the base GradientStrategy header (missing forward declarations/header include)
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  bb5c499f
- Merge pull request #223 from tnguyen-ornl/tnguyen/qfast-gradients · 8cbcdc88
  Mccaskey, Alex authored Jul 08, 2020
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Support Gradients in QFAST
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  8cbcdc88
07 Jul, 2020 2 commits

Potential fix for the *false positive* explore phase · 42987259

Nguyen, Thien Minh authored Jul 07, 2020

The explore phase (locations as parameters) using soft-max to localize floating-point parameters.

This worked in most of the cases unless the optimizer *accidentally* picked two identical location params at one layer and it created a local minimum.

This can potentially terminate the explore phase early with less layers but some layers are combinations of multiple locations instead of just one location.

Hence, the refine stage cannot find the solution when it fixes the location.
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>

42987259

Used larger soft-max factor · fd1ac1fe

Nguyen, Thien Minh authored Jul 06, 2020



Also, add options to specify lower and upper bounds for nlopt.

The location params (during Explore) need to be in the (0.0, 1.0) range.
Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>

fd1ac1fe

06 Jul, 2020 6 commits
- fixed softmax · 44f8459f
  Nguyen, Thien Minh authored Jul 06, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  44f8459f
- Fixed code comment · 47a2dd5f
  Nguyen, Thien Minh authored Jul 06, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  47a2dd5f
- Implemented gradient-based for QFAST Explore stage · 3151db64
  Nguyen, Thien Minh authored Jul 06, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  3151db64
- Added eigen auto-diff functor for the Explore stage optimization · e36e20b7
  Nguyen, Thien Minh authored Jul 06, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  e36e20b7
- Merge branch 'master' into tnguyen/qfast-gradients · 2339fab5
  Nguyen, Thien Minh authored Jul 06, 2020
  
  2339fab5
- Added options to select the optimizer · aece295d
  Nguyen, Thien Minh authored Jul 06, 2020
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Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>
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  aece295d