CUDA Quantum

• Implement cudaq::control() taking a free function as argument by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/35
• Add reset to kernel_builder in C++ and python. by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/18
• Add for_loop to cudaq::kernel_builder and cudaq.Kernel by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/19
• Optimization: do not add control qubits to compute/uncompute steps of compute_action idiom. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/63
• Expose for_each_term and for_each_pauli to python by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/56
• Implement spin_op::to_matrix() by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/31
• Add support for negate operator (operator!) to cudaq::control. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/81
• Improve the ExecutionManager Extension Point by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/33
• Performance enhancements: observe_n and sample_n broadcast functions by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/74
• spin_op performance enhancement by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/115
• Implement chemistry domain sub-package. by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/112
• [optimizer] Decomposition pass by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/143
• Increase performance of quantum allocation and deallocation in simulation by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/167
• Basis translation pass by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/144
• Implement runtime quantum operation tracing by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/92
• [optimizer] Multicontrol decomposition by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/194
• Add Server Helper for Quantinuum backends by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/176
• Add qvector, qarray, and qview by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/152
• Expose SWAP gate to c++ and python builder by @anthony-santana in https://github.com/NVIDIA/cuda-quantum/pull/200
• [opt] Add memtoreg and regtomem passes. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/233
• Added forward difference gradient evaluation. by @poojarao8 in https://github.com/NVIDIA/cuda-quantum/pull/107
• Local emulation of remote qpu execution by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/262
• Implement MPI support in CUDA Quantum by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/237 ### Bug Fixes 🐛
• Add overload to handle the case when the user writes: by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/32
• Do not allow operator! on target qubits. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/6
• Temporary fix for AST visitor reentrancy bugs. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/22
• Fix bug 69, no expval attached to observe_result when shots aren't provided by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/70
• Fix QuakeValue Lifetime Bug and kernel_builder::to_quake Handling by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/67
• Adding r-val overload (QuakeValue &&) for kernel_builder adjoint modifier by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/99
• [CircuitCheck] Handle qvec as controls by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/128
• [common-ops] Fixes some matrices (row-major vs col-major) issues by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/133
• [quake] Fixes some matrices (row-major vs col-major) issues by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/140
• Fix #129, Make kernel_builder::qalloc(1) explicitly return a qvec. by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/136
• QuakeBridgeVisitor to handle cphase by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/132
• cudaq-ensmallen not export BLAS symbols by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/185
• Fixed a subtle bug in QppCircuitSimulator::observe by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/189
• Bind r1 gate to python by @anthony-santana in https://github.com/NVIDIA/cuda-quantum/pull/198
• Fixed QppCircuitSimulator shots ExecutionResult.expectationValue by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/208
• Fixing segfault crashes when using measure/reset ops. by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/217
• Fix #250: linkage of top-level (global) function. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/267
• Reset and parametric gates in kernel_builder by @1tnguyen in https://github.com/NVIDIA/cuda-quantum/pull/269
• Fix #251: Base profile should handle single qubit allocations. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/273
• Fix #281: let canonicalization pattern work with IndexType. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/282
• Fix #286: Add canonicalization to hoist invariants cc.loop arguments. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/289
• Fix #296: issue processing if-statements in JIT compilation by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/298
• [pass] Fix #291: don't erase non-controlled ops by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/292 ### Breaking Changes 🛠
• Remove qpud by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/91
• Delete qtx-translate and references to same. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/102
• Remove outdated functions from cudaq.py by @anthony-santana in https://github.com/NVIDIA/cuda-quantum/pull/105
• [CircuitCheck] Remove QTX support by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/118
• [quake] Universally replace the QRef type name with Ref. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/160
• [quake] Universal conversion of QVec to Veq. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/163
• Removes the QTX dialect by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/157
• NVQ++ Targets by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/147
• Update python command line flags by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/187
• [nfc] Remove the raise to affine (stub) pass. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/235 ### Documentation Updates ✏️
• Refer to GitHub for building from source instructions, by @bettinaheim in https://github.com/NVIDIA/cuda-quantum/pull/40
• Documentation update for control qubit negation by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/86
• Fixes to common operations definitions by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/120
• Update circuit simulator documentation to reflect the latest refactoring by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/90
• Update the documentation to reflect the new unified dialect by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/153
• Make the CC ops documentation more uniform. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/150
• [docs] Small fixes to quake dialect example by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/165 ### Other Changes
• Revert change to disable jump branching. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/5
• Replace the old deallocation pass. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/30
• Make use of the various math dialect power operations. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/71
• [nvq++] Add RPATH flags only to the final binary by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/52
• CircuitSimulator Refactor by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/12
• Add a wire type to the quake dialect. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/101
• Add new ops to quake. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/109
• Link to correct version of custatvec libs by @hamidelmaazouz in https://github.com/NVIDIA/cuda-quantum/pull/88
• [CircuitCheck] Run canonicalizer before checking by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/122
• Convert the quake dialect ops to support both memory and register forms. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/124
• Change qextract to extract_ref everywhere. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/138
• Add types for structs and arrays to CC by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/146
• [quake] OperatorInterface method to get negated controls by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/154
• [CircuitCheck] Handle negated controls by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/159
• Fold constant into extract_ref op by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/164
• [CircuitCheck] Handle raw index in ExtractRefOp by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/168
• [cc] Start adding some LLVM-like operations. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/192
• [CircuitCheck] Handle local qubits by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/190
• [quake, cc] Improved alloca ops by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/193
• Fixes for macOS by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/213
• [bridge, runtime] Replace use of LLVM-IR dialect in the bridge and python interface with CC dialect operations. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/201
• [cc] Add a folder to compute_ptr op. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/220
• [cg] Move GenKernelExecution to CC dialect. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/225
• Remove the use of the MLIR Memref dialect. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/226
• Load available simulators and platforms lazily in Python by @amccaskey in https://github.com/NVIDIA/cuda-quantum/pull/239
• [opt] Expand loop unrolling to autodetect counted loops. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/265
• [pass] Decompose aggregate quantum allocations into multiple individual qubit allocations by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/280
• [opt] Flag to raise an error if cannot unroll a loop by @boschmitt in https://github.com/NVIDIA/cuda-quantum/pull/295
• Preserve the line information in the source code for JIT compilation. by @schweitzpgi in https://github.com/NVIDIA/cuda-quantum/pull/299

• @schweitzpgi made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/8
• @boschmitt made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/46
• @amccaskey made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/21
• @anthony-santana made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/105
• @1tnguyen made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/73
• @hamidelmaazouz made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/88
• @poojarao8 made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/107
• @tlubowe made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/59
• @Gistbatch made their first contribution in https://github.com/NVIDIA/cuda-quantum/pull/110

Full Changelog: https://github.com/NVIDIA/cuda-quantum/compare/0.3.0...0.4.0-alpha