mirror of https://github.com/Qiskit/qiskit.git
15 lines
777 B
YAML
15 lines
777 B
YAML
features:
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- |
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A new transpiler pass,
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:class:`~qiskit.transpiler.passes.RZXCalibrationBuilderNoEcho`, was added
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to the :mod:`qiskit.transpiler.passes` module. This pass is similar
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to the existing :class:`~qiskit.transpiler.passes.RZXCalibrationBuilder`
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in that it creates calibrations for an ``RZXGate(theta)``,
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however :class:`~qiskit.transpiler.passes.RZXCalibrationBuilderNoEcho`
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does this without inserting the echo pulses in the pulse schedule. This
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enables exposing the echo in the cross-resonance sequence as gates so that
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the transpiler can simplify them. The
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:class:`~qiskit.transpiler.passes.RZXCalibrationBuilderNoEcho` pass only
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supports the hardware-native direction of the
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:class:`~qiskit.circuit.library.CXGate`.
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