-
Notifications
You must be signed in to change notification settings - Fork 2.4k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
f2bc607
commit 17d2a46
Showing
1 changed file
with
26 additions
and
0 deletions.
There are no files selected for viewing
26 changes: 26 additions & 0 deletions
26
releasenotes/notes/upgrade-pulse-builder-and-rzx-builder-033ac8ad8ad2a192.yaml
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,26 @@ | ||
--- | ||
features: | ||
- | | ||
New pulse directive :class:`~qiskit.pulse.instructions.AreaBarrier` has been added. | ||
This instruction is QPY compatible. This directive behaves almost identically to | ||
delay instruction, but will be removed before execution. | ||
This directive is intended to be used internally within the pulse builder | ||
and helps :class:`.ScheduleBlock` with representing instructions with | ||
absolute time intervals. This allows the pulse builder to convert | ||
:class:`Schedule` into :class:`ScheduleBlock`, rather than wrapping with call instruction. | ||
- | | ||
QPY dump and load now support :class:`~qiskit.pulse.instructions.AreaBarrier` instruction. | ||
upgrade: | ||
- | | ||
The behavior of the pulse builder when a :class:`.Schedule` is called | ||
has been upgraded. Called schedules are internally converted into | ||
:class:`.ScheduleBlock` representation and now reference mechanism is | ||
always applied rather than appending the schedules wrapped by | ||
the :class:`~qiskit.pulse.instructions.Call` instruction. | ||
This is an upgrade of internal representation and thus no API changes. | ||
This change guarantees the generated schedule blocks are always QPY compatible. | ||
- | | ||
:class:`~qiskit.transpiler.passes.RZXCalibrationBuilder` | ||
and :class:`~qiskit.transpiler.passes.RZXCalibrationBuilderNoEcho` transpiler pass | ||
have been upgraded to generate :class:`.ScheduleBlock`. | ||
This change guarantees the transpiled circuits are always QPY compatible. |