0.12.0

This release contains a range of new features and performance improvements for the dynamics simulation and adds more tools for error correction applications. It introduces new CUDA-Q API for kernels that return values (run), and adds support for connecting to Quantum Machines backends. This release also contains a contributions from UnitaryHack. With this release, we now include support for Python 3.13.

Note:
Support for Python 3.10 will be removed in future releases.

What's Changed

Features and Enhancements 🎉

• Dynamics operator batching by @1tnguyen in #3129
• Support input state batching in dynamics evolve by @1tnguyen in #2921
• General evolve super-operator construction by @1tnguyen in #2960
• Support fine-grained store intermediate result option in evolve by @1tnguyen in #3055
• Support multi-diagonal operator conversion for dynamics by @1tnguyen in #2993
• Enable run API by @khalatepradnya in #2927
• Add ability to create a measurement matrix from a Clifford-only kernel by @bmhowe23 in #2919
• Support for Quantum Machines backends by @HanaGiatQM in #2838

Bug Fixes 🐛

• Proper handling of evolve_async input state by @1tnguyen in #2951
• Fix constant folding of booleans casted to integers by @annagrin in #2805
• Fix an issue with tensornet observe when the canonicalized spin_op doesn't span the entire qubit space by @1tnguyen in #3038
• Fixing an issue with apply_noise on the mgpu backend by @1tnguyen in #3070
• Remove external linkage of Stim symbols in libnvqir-stim.so by @bmhowe23 in #3076
• Fix bugs when lowering ternary operator by @schweitzpgi in #3108
• Fixes a number of bugs, todos, etc. by @schweitzpgi in #3083
• Improve compilation for docs examples by @schweitzpgi in #3130
• Fix handling of empty vector in kernel arguments by @schweitzpgi in #3142
• Fix default config file generator cmake helper function and add test by @1tnguyen in #3164
• Fix a couple of bugs for python loops by @schweitzpgi in #3200
• Avoid calls to MPI_Comm_rank() after finalize by @cuMikeBrown in #3198
• Propagate conditional feedback metadata from callees to callers by @annagrin in #3219

Breaking Changes 🛠

• Drop library mode support in remote simulators by @khalatepradnya in #2977
• Update to cuquantum 25.06 by @1tnguyen in #3156

Documentation Updates ✏️

• Preface for dynamics examples by @mawolf2023 in #2865
• Documentation for CUDAQ_ENABLE_MEMPOOL by @1tnguyen in #2849
• Add docs for adding a new backend by @nvidia-dobri in #2878
• Fixing the bug in the Krylov example by @marwafar in #2973
• Add Quantum PageRank example by @Squirtle007 in #2806
• Edit CUDAQ_GLOBAL_INDEX_BITS doc by @1tnguyen in #3005
• Ion Trap example by @Gopal-Dahale in #3026
• Fixing an error in the operator documentation by @sacpis in #3019
• Add run to the algorithmic primitives by @khalatepradnya in #3067
• Add ion trap example to the dynamics docs by @Gopal-Dahale in #3063
• Update Grover's algorithm with phase oracle by @mmvandieren in #3125
• Update adapt_qaoa tutorial and fix the mixer_pool issue by @marwafar in #3143
• Update tutorials for unitary compilation using diffusion models by @FlorianFuerrutter in #3101
• Document the run API and add examples by @khalatepradnya in #3182
• CPP examples by @sacpis in #2790
• Dynamics batching documentation by @1tnguyen in #3183

Other Changes

• Add ability to propagate constants through spans. by @schweitzpgi in #2953
• Add support for some math functions inside kernels by @schweitzpgi in #2989
• Advance Stim to 1.15 by @bmhowe23 in #2877
• State preparation synthesis via MPS decomposition by @ACE07-Sev in #2972
• Handling negative lower and upper bound of a slice by @sacpis in #3022
• Add argument coercions by @schweitzpgi in #3027
• Adding control on multilple qubits for C++ kernel builder by @sacpis in #3052
• Update run_async to work with python API and add tests by @annagrin in #3074
• Initial implementation of getting matrix for kernel by @Randl in #3028
• Add a DSR compiler pass by @schweitzpgi in #3145
• Introduce cudaq::contrib by @nvidia-dobri in #3190
• Include python 3.13 by @mitchdz in #3224
• Make ordering of matrix class configurable by @amccaskey in #3126

New Contributors

• @Squirtle007 made their first contribution in #2806
• @ACE07-Sev made their first contribution in #2972
• @HanaGiatQM made their first contribution in #2838
• @Randl made their first contribution in #3028
• @denialhaag made their first contribution in #3151

Full Changelog: 0.11.0...0.12.0
Release created by workflow 16655085468.