CHANGELOG.md

CHANGELOG

2024-09-13 (1.0.0)

• Fix bell state corrections when compiling for hardware

2024-03-20 (0.16.0)

• Added the REIDS flavour.

2024-01-15 (0.15.0)

• Change level of subroutine compilation logging from INFO to DEBUG to avoid cluttering.

2023-10-10 (0.14.0)

• Fix connection getting flushed during exception handling

2023-07-24 (0.13.3)

• Fixed an issue with LAST instruction logs.

2023-07-07 (0.13.2)

• Relaxed version requirements on dependencies

2023-01-26 (0.13.1)

• Add instructions on updating CHANGELOG.md

2022-12-13 (0.13.0)

• Use nodes' app names for instruction logging.

2022-11-15 (0.12.2)

• Update SquidASM to 0.10.0.

2022-09-29 (0.12.1)

• Fix Builder not moving qubits

2022-08-22 (0.12.0)

• Implemented Bell corrections for RSP.
• Moved Bell correction logic to receiver side.

2022-05-23 (0.11.0)

• Added support for automatically handling generated EPR pairs that are not Phi+ (by adding gates or doing post-processing)
• Added SDK feature to pre-compile subroutines and only later send them to the quantum controller
• Renamed PreSubroutine to ProtoSubroutine
• Improved NV-specific compilation
• Updated how package installation and dependency configuration is handled.

2022-04-07 (0.9.1)

• Updated versions of dependencies to prevent installation conflicts.

2022-02-25 (0.9.0)

• Refactored SDK code
• Added loop_until context to SDK
• Added min_fidelity_all_at_end EPR generation parameter
• Added explicity create_keep, create_measure and create_rsp methods (and similar for recv_) to EPRSocket. The old create and recv methods are deprecated.
• Added builder tests
• Applied formatting on examples

2021-11-15 (0.8.6)

• Explicitly use MIT license
• Reformat some imports for better autodocgen

2021-11-08 (0.8.5)

• Fixed bug in Bloch sphere representation calculation.

2021-09-27 (0.8.4)

• Updated QKD app config.

2021-09-24 (0.8.3)

• Added QNE-specific apps to netqasm/examples/qne_apps.

2021-09-20 (0.8.2)

• Small fix in MANIFEST.in file

2021-09-20 (0.8.1)

• Added MANIFEST.in file

2021-09-19 (0.8.0)

• Added breakpoint instruction to NetQASM language.
• Re-organized examples.
• Made compatible with SquidASM 0.8.0.

2021-09-10 (0.7.7)

• Fixed bug where registers were not freed after only being used temporarily.
• Package installation now used pyproject.toml.

2021-07-13 (0.7.5)

• Added support for Remote State Preparation entanglement requests.

2021-06-22 (0.7.4)

• Fixed bug where Builder's App ID was not updated when Connection's App ID changed.

2021-06-14 (0.7.3)

• Added max_time and time_unit parameters to EPRSocket.create()
• Added SubroutineAbortedError type

2021-05-10 (0.7.2)

• Temporarily disable test_create_epr_m.py test
• Temporarily disable link_layer_md example

2021-05-10 (0.7.1)

• Added docstrings to a large part of the codebase
• Some refactoring based on inconsistencies found while documenting

2021-05-02 (0.7.0)

• Added type hints to most of the code.
• Now using the black and isort formatters for the whole repo.
• Extracted pre-subroutine construction out of the Connection class and moved to the Builder class.
• Improved type hints related to numpy types.
• Added convenience methods to the SharedMemory class.
• Added support for single-threaded SquidASM simulator.
• Bumped qlink-layer requirement to 1.0.0. Arrays for EPR instructions still use the 0.1.0 format.
• Added a compatibility module for simulators that use qlink-layer 1.0.0 themselves but want to interpret EPR arrays using 0.1.0.
• Updated code that is deprecated in NetSquid 1.0 (it is now compatible with 1.0).

2021-02-05 (0.6.0)

• Added support for choosing the measurement basis for M-type EPR generation.
• Added the ability to manually create a Register in the SDK. Further use with these Registers is limited for now.
• Added interfaces for applications and the runtime environment, to make it easier to instantiate and run apps.
• Added the netqasm qne login and netqasm qne logout commands.
• Renamed Executioner to Executor.
• Optimized initialization of arrays when all elements have the same initial value (use a loop).
• Fixed NV compilation when doing sequential EPR create commands.
• Fixed NV compilation of K gates.
• Fixed bug where multiple branch labels with the same name could appear.

2021-02-05 (0.5.3)

• Reverted patches 0.5.1 and 0.5.2. 0.5.3 is exactly the same as 0.5.0.

2021-01-21 (0.5.2)

• Added support for choosing the measurement basis for M-type EPR generation.
• Added the ability to manually create a Register in the SDK. Further use with these Registers is limited for now.
• Added interfaces for applications and the runtime environment, to make it easier to instantiate and run apps.
• Added the netqasm qne login and netqasm qne logout commands.

2021-01-15 (0.5.1)

• Renamed Executioner to Executor.
• Fixed NV compilation when doing sequential EPR create commands.

2020-12-17 (0.5.0)

• Removed the QST (qubit state) field from log entries.
• The QGR (qubit groups) field now contains a dict of all qubit groups in the whole simulation, so also of qubits not directly acted on in the current logged operation.
• Added the StructuredMessage class in the SDK, which distinguishes between a header and the payload.
• Added send_structured and recv_structured functions to the Socket class for communication StructuredMessages.
• Added send_silent and recv_silent functions to the Socket class for sending standard messages that are not logged to the <role>_class_comm.yaml files.
• Added sim_states module to the SDK with some helper functions for dealing with NetSquid (only works with the netsquid backend).
• Added the --log-to-files CLI parameter. If True, no logs are written to any files.
• The Depolarise NoiseType for network links now always generates general mixed states, instead of either a perfect state or a fully mixed state.
• Added a DiscreteDepolarise NoiseType for network links that has the old behavior of Depolarise.
• Log directories and Python cache files are not anymore copied from the teleport example when creating using netqasm new or netqasm init.
• netqasm new and netqasm init now also create a results_config.json file.
• Added support for more accurate NV simulation. A nv.yaml file can be used additionally to the network.yaml file.
• The BB84 example was changed to use Create and Keep entanglement generation.
• Added results_config.json to the bb84 and teleport examples.
• Fixed bugs in CLI unit test.
• Fixed a bug related to vritual address allocation.

2020-11-26 (0.4.2)

• Fixed a bug where the EPRSocket would return an incorrect min_fidelity value.

2020-11-24 (0.4.1)

• Added return_arrays argument to the NetQASMConnection constructor. When False, no arrays are returned at the end of a subroutine, even if they are used in that subroutine.
• The NV compiler now moves a qubit (if any) from the electron to the carbon before generating another entangled qubit.
• Added a mov instruction to the vanilla flavour. For now only used by the NV compiler, and is not in the SDK.

2020-11-20 (0.4.0)

• Added preliminary documentation, including a quickstart and information about the SDK. Build it locally using make build from within the docs directory.
• Added netqasm new and netqasm init commands.
• Internal restructuring of modules.
• Logging and configuration formats are now described as dataclasses in netqasm.runtime.interface.
• Added more results to the BB84 application output.
• Distinguish between 'Measure Directly' and 'Create and Keep' types of entanglement in the network log.
• Fixes regarding entanglement logging and qubit group calculation.
• Instruction log files now again use the role name instead of the node name.
• Made array IDs, EPR socket IDs and node IDs int32 instead of uint32 such that they can be stored in registers.
• Added min_fidelity to EPR socket.

2020-10-19 (0.3.0)

• Added netqasm run command to launch applications without also starting a simulation backend. It allows the same additional arguments as netqasm simulate, except simulation-specifc ones like --simulator.
• Added the RegFuture class representing values that become available in a register rather than an array.
• Added the store_array optional argument to qubit.measure(). If False, the result is a RegFuture.
• Improved simplification of (n, d) values for angles. Both n and d are now as small as possible.
• When not using a simulator backend, the NV compiler now always outputs angle values such that d = 4.

2020-10-08 (0.2.0)

• Example apps have moved into the netqasm module netqasm/examples/apps
• Now logging all quantum gates in the instructions log files.
• Remove CREATE_EPR and RECV_EPR from instructions log files.
• Add channels to network log (PTH).
• Log the start of each EPR pair generation in network log file.
• Log qubit IDs in the network log.
• Log both physical and virtual qubit IDs in the instructions log files.
• The names of roles in the examples have been updated.

2020-09-25 (0.1.0)

• The CLI from squidasm is now moved to here and can be called as netqasm. It works the same as before with the options to the arguments simulate. Only difference is that it now takes an option --simulator which can either be netsquid (producing the same behaviour as the previous squidasm CLI) or simulaqron. Note that squidasm or simulaqron needs to be installed in the respective case. The choice of simulator can also be done by setting the environment variable NETQASM_SIMULATOR.
• Tests and examples for the SDK have now moved from squidasm to here. In particular the implemented apps that previously was in squidasm/examples/apps can now be found in netqasm/examples/apps.
• Code not specific to a simulator, for example a base class for the SubroutineHandler and function simulate_apps have moved to here to be reused by all simulators.

2020-09-23 (0.0.13)

• Made a base subroutine handler class.
• Added definition of return messages from qnodeos.

2020-09-23 (0.0.12)

• Use correct NV gates in when compiling.

2020-09-22 (0.0.11)

• Now using binary encoding for messages from host to qnodeos.

2020-09-17 (0.0.10)

• netqasm does not depend on cqc anymore.

2020-09-09 (0.0.9)

• Instrs-logging now support qubit IDs and qubit states for all qubits involved in the operation.
• Instrs-logging now support what to specify what qubits have at some point interacted in the simulaton.

2020-08-27 (0.0.8)

• Moved syntax highlighting files for vim to separate repo.

2020-08-14 (0.0.7)

• Added static checks with mypy.
• Large refactoring of how instructions are handled internally.
• Add concept of NetQASM flavours and a compiler which uses this.
• Compilation of two-qubit gates for NV.

2020-07-09 (0.0.6)

• Fixed failing examples and changed default config to only use the dataclass.

2020-07-09 (0.0.5)

• Fixed bug when logging PRC.
• SDK now supports addition of future.
• Loggers are saved at end of simulation.
• Log host line numbers across multiple files.
• Function in SDK to generate GHZ state.
• Added broadcast-channel to SDK.
• Alignment to QNodeOS.
• Application logger.
• Log if a qubit is entangled.
• Allow for parallel execution of subroutines.

2020-05-20 (0.0.4)

• Output logs are now in yaml format

2020-05-20 (0.0.3)

• Fixed bug when checking that num random bases is 2.

2020-05-19 (0.0.2)

• Create EPR of request M now supported.
• Added EPRSocket class to encapsulate an EPR circuit connection for entanglement generation.
• Added structured logging for classical messages.
• Errors in Executioner now also show which line in subroutine failed.
• Added gate mapping of single-qubit gates to NV.
• State prepation function for single-qubit states.
• Added rotation gates.
• Possibility to specify rotation angle as float which gets converted into sequence of NetQASM rotations.

2020-05-06 (0.0.1)

• Main changes are the addition of contexts for doing looping, if-statements etc in the SDK.

2020-02-15 (0.0.0)

• Created this package