qiskit/releasenotes/notes/0.19/echo-rzx-weyl-decomposition...

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features:
- |
Added a new transpiler pass :class:`.EchoRZXWeylDecomposition` that allows
users to decompose an arbitrary two-qubit gate in terms of echoed RZX-gates
by leveraging Cartan's decomposition. In combination with other transpiler
passes, this can be used to transpile arbitrary circuits to RZX-gate-based
and pulse-efficient circuits that implement the same unitary.