0.4.0-alpha

What's Changed

Features and Enhancements 🎉

• Implement cudaq::control() taking a free function as argument by @schweitzpgi in #35
• Add reset to kernel_builder in C++ and python. by @amccaskey in #18
• Add for_loop to cudaq::kernel_builder and cudaq.Kernel by @amccaskey in #19
• Optimization: do not add control qubits to compute/uncompute steps of compute_action idiom. by @schweitzpgi in #63
• Expose for_each_term and for_each_pauli to python by @amccaskey in #56
• Implement spin_op::to_matrix() by @amccaskey in #31
• Add support for negate operator (operator!) to cudaq::control. by @schweitzpgi in #81
• Improve the ExecutionManager Extension Point by @amccaskey in #33
• Performance enhancements: observe_n and sample_n broadcast functions by @amccaskey in #74
• spin_op performance enhancement by @amccaskey in #115
• Implement chemistry domain sub-package. by @amccaskey in #112
• [optimizer] Decomposition pass by @boschmitt in #143
• Increase performance of quantum allocation and deallocation in simulation by @amccaskey in #167
• Basis translation pass by @boschmitt in #144
• Implement runtime quantum operation tracing by @amccaskey in #92
• [optimizer] Multicontrol decomposition by @boschmitt in #194
• Add Server Helper for Quantinuum backends by @amccaskey in #176
• Add qvector, qarray, and qview by @amccaskey in #152
• Expose SWAP gate to c++ and python builder by @anthony-santana in #200
• [opt] Add memtoreg and regtomem passes. by @schweitzpgi in #233
• Added forward difference gradient evaluation. by @poojarao8 in #107
• Local emulation of remote qpu execution by @amccaskey in #262
• Implement MPI support in CUDA Quantum by @amccaskey in #237

Bug Fixes 🐛

• Add overload to handle the case when the user writes: by @schweitzpgi in #32
• Do not allow operator! on target qubits. by @schweitzpgi in #6
• Temporary fix for AST visitor reentrancy bugs. by @schweitzpgi in #22
• Fix bug 69, no expval attached to observe_result when shots aren't provided by @amccaskey in #70
• Fix QuakeValue Lifetime Bug and kernel_builder::to_quake Handling by @amccaskey in #67
• Adding r-val overload (QuakeValue &&) for kernel_builder adjoint modifier by @1tnguyen in #99
• [CircuitCheck] Handle qvec as controls by @boschmitt in #128
• [common-ops] Fixes some matrices (row-major vs col-major) issues by @boschmitt in #133
• [quake] Fixes some matrices (row-major vs col-major) issues by @boschmitt in #140
• Fix #129, Make kernel_builder::qalloc(1) explicitly return a qvec. by @amccaskey in #136
• QuakeBridgeVisitor to handle cphase by @1tnguyen in #132
• cudaq-ensmallen not export BLAS symbols by @1tnguyen in #185
• Fixed a subtle bug in QppCircuitSimulator::observe by @1tnguyen in #189
• Bind r1 gate to python by @anthony-santana in #198
• Fixed QppCircuitSimulator shots ExecutionResult.expectationValue by @1tnguyen in #208
• Fixing segfault crashes when using measure/reset ops. by @1tnguyen in #217
• Fix #250: linkage of top-level (global) function. by @schweitzpgi in #267
• Reset and parametric gates in kernel_builder by @1tnguyen in #269
• Fix #251: Base profile should handle single qubit allocations. by @schweitzpgi in #273
• Fix #281: let canonicalization pattern work with IndexType. by @schweitzpgi in #282
• Fix #286: Add canonicalization to hoist invariants cc.loop arguments. by @schweitzpgi in #289
• Fix #296: issue processing if-statements in JIT compilation by @schweitzpgi in #298
• [pass] Fix #291: don't erase non-controlled ops by @boschmitt in #292

Breaking Changes 🛠

• Remove qpud by @amccaskey in #91
• Delete qtx-translate and references to same. by @schweitzpgi in #102
• Remove outdated functions from cudaq.py by @anthony-santana in #105
• [CircuitCheck] Remove QTX support by @boschmitt in #118
• [quake] Universally replace the QRef type name with Ref. by @schweitzpgi in #160
• [quake] Universal conversion of QVec to Veq. by @schweitzpgi in #163
• Removes the QTX dialect by @boschmitt in #157
• NVQ++ Targets by @amccaskey in #147
• Update python command line flags by @amccaskey in #187
• [nfc] Remove the raise to affine (stub) pass. by @schweitzpgi in #235

Documentation Updates ✏️

• Refer to GitHub for building from source instructions, by @bettinaheim in #40
• Documentation update for control qubit negation by @schweitzpgi in #86
• Fixes to common operations definitions by @boschmitt in #120
• Update circuit simulator documentation to reflect the latest refactoring by @amccaskey in #90
• Update the documentation to reflect the new unified dialect by @schweitzpgi in #153
• Make the CC ops documentation more uniform. by @schweitzpgi in #150
• [docs] Small fixes to quake dialect example by @boschmitt in #165

Other Changes

• Revert change to disable jump branching. by @schweitzpgi in #5
• Replace the old deallocation pass. by @schweitzpgi in #30
• Make use of the various math dialect power operations. by @schweitzpgi in #71
• [nvq++] Add RPATH flags only to the final binary by @boschmitt in #52
• CircuitSimulator Refactor by @amccaskey in #12
• Add a wire type to the quake dialect. by @schweitzpgi in #101
• Add new ops to quake. by @schweitzpgi in #109
• Link to correct version of custatvec libs by @hamidelmaazouz in #88
• [CircuitCheck] Run canonicalizer before checking by @boschmitt in #122
• Convert the quake dialect ops to support both memory and register forms. by @schweitzpgi in #124
• Change qextract to extract_ref everywhere. by @schweitzpgi in #138
• Add types for structs and arrays to CC by @schweitzpgi in #146
• [quake] OperatorInterface method to get negated controls by @boschmitt in #154
• [CircuitCheck] Handle negated controls by @boschmitt in #159
• Fold constant into extract_ref op by @schweitzpgi in #164
• [CircuitCheck] Handle raw index in ExtractRefOp by @boschmitt in #168
• [cc] Start adding some LLVM-like operations. by @schweitzpgi in #192
• [CircuitCheck] Handle local qubits by @boschmitt in #190
• [quake, cc] Improved alloca ops by @schweitzpgi in #193
• Fixes for macOS by @boschmitt in #213
• [bridge, runtime] Replace use of LLVM-IR dialect in the bridge and python interface with CC dialect operations. by @schweitzpgi in #201
• [cc] Add a folder to compute_ptr op. by @schweitzpgi in #220
• [cg] Move GenKernelExecution to CC dialect. by @schweitzpgi in #225
• Remove the use of the MLIR Memref dialect. by @schweitzpgi in #226
• Load available simulators and platforms lazily in Python by @amccaskey in #239
• [opt] Expand loop unrolling to autodetect counted loops. by @schweitzpgi in #265
• [pass] Decompose aggregate quantum allocations into multiple individual qubit allocations by @schweitzpgi in #280
• [opt] Flag to raise an error if cannot unroll a loop by @boschmitt in #295
• Preserve the line information in the source code for JIT compilation. by @schweitzpgi in #299

New Contributors

• @schweitzpgi made their first contribution in #8
• @boschmitt made their first contribution in #46
• @amccaskey made their first contribution in #21
• @anthony-santana made their first contribution in #105
• @1tnguyen made their first contribution in #73
• @hamidelmaazouz made their first contribution in #88
• @poojarao8 made their first contribution in #107
• @tlubowe made their first contribution in #59
• @Gistbatch made their first contribution in #110

Full Changelog: 0.3.0...0.4.0-alpha