mirror of https://github.com/Qiskit/qiskit.git
85 lines
3.7 KiB
ReStructuredText
85 lines
3.7 KiB
ReStructuredText
Release history
|
|
###############
|
|
|
|
QISKit SDK 0.4.0
|
|
================
|
|
|
|
2018/01/08
|
|
|
|
Improvements
|
|
------------
|
|
|
|
- Job handling improvements.
|
|
- Allow asynchronous job submission.
|
|
- New JobProcessor class: utilizes concurrent.futures.
|
|
- New QuantumJob class: job description.
|
|
- Modularize circuit "compilation".
|
|
Takes quantum circuit and information about backend to transform
|
|
circuit into one which can run on the backend.
|
|
- Standardize job description.
|
|
All backends take QuantumJob objects which wraps ``qobj`` program description.
|
|
- Simplify addition of backends, where circuits are run/simulated.
|
|
- ``qiskit.backends`` package added.
|
|
- Real devices and simulators are considered "backends" which inherent from ``BaseBackend``.
|
|
- Reorganize and improve Sphinx documentation.
|
|
- Improve unittest framework.
|
|
- Add tools for generating random circuits.
|
|
- New utilities for fermionic Hamiltonians (``qiskit/tools/apps/fermion``).
|
|
- New utilities for classical optimization and chemistry (``qiskit/tools/apps/optimization``).
|
|
- Randomized benchmarking data handling.
|
|
- Quantum tomography (``qiskit/tools/qcvv``).
|
|
Added functions for generating, running and fitting process tomography experiments.
|
|
- Quantum information functions (``qiskit/tools/qi``).
|
|
- Partial trace over subsystems of multi-partite vector.
|
|
- Partial trace over subsystems of multi-partite matrix.
|
|
- Flatten an operator to a vector in a specified basis.
|
|
- Generate random unitary matrix.
|
|
- Generate random density matrix.
|
|
- Generate normally distributed complex matrix.
|
|
- Generate random density matrix from Hilbert-Schmidt metric.
|
|
- Generate random density matrix from the Bures metric.
|
|
- Compute Shannon entropy of probability vector.
|
|
- Compute von Neumann entropy of quantum state.
|
|
- Compute mutual information of a bipartite state.
|
|
- Compute the entanglement of formation of quantum state.
|
|
- Visualization improvements (``qiskit/tools``).
|
|
- Wigner function representation.
|
|
- Latex figure of circuit.
|
|
- Use python logging facility for info, warnings, etc.
|
|
- Auto-deployment of sphinx docs to github pages.
|
|
- Check IBMQuantumExperience version at runtime.
|
|
- Add QuantumProgram method to reconfigure already generated qobj.
|
|
- Add Japanese introductory documentation (``doc/ja``).
|
|
- Add Korean translation of readme (``doc/ko``).
|
|
- Add appveyor for continuous integration on Windows.
|
|
- Enable new IBM Q parameters for hub/group/project.
|
|
- Add QuantumProgram methods for destroying registers and circuits.
|
|
- Use Sympy for evaluating expressions.
|
|
- Add support for ibmqx_hpc_qasm_simulator backend.
|
|
- Add backend interface to Project Q C++ simulator.
|
|
Requires installation of Project Q.
|
|
- Introduce ``InitializeGate`` class.
|
|
Generates circuit which initializes qubits in arbitrary state.
|
|
- Introduce ``local_qiskit_simulator`` a C++ simulator with realistic noise.
|
|
Requires C++ build environment for ``make``-based build.
|
|
- Introduce ``local_clifford_simulator`` a C++ Clifford simulator.
|
|
Requires C++ build environment for ``make``-based build.
|
|
|
|
Bug Fixes
|
|
---------
|
|
|
|
- Fix basis gates (#76).
|
|
- Enable QASM parser to work in multiuser environments.
|
|
- Correct operator precedence when parsing expressions (#190).
|
|
- Fix "math domain error" in mapping (#111, #151).
|
|
|
|
Backward-incompatible changes
|
|
-----------------------------
|
|
|
|
- The standard extension for creating U base gates has been modified to be
|
|
consistent with the rest of the gate APIs (see #203).
|
|
- The ``silent`` parameter has been removed from a number of ``QuantumProgram``
|
|
methods. The same behaviour can be achieved now by using the
|
|
``enable_logs()`` and ``disable_logs()`` methods, which use the standard
|
|
Python logging.
|