quantum gate directory
Echoed Cross-Resonance
Symbol
$ECR$
Description:
The Echoed Cross-Resonance (ECR) gate is a two-qubit Clifford gate that is native to superconducting quantum processors based on the cross-resonance interaction. Up to local single-qubit Clifford operations, the ECR gate is equivalent to a CNOT, and can therefore be used as a drop-in replacement for CNOT in Clifford circuits.
$$ ECR = \frac{1}{\sqrt{2}} \begin{pmatrix} 0 & 1 & 0 & i \\ 1 & 0 & -i & 0 \\ 0 & i & 0 & 1 \\ -i & 0 & 1 & 0 \end{pmatrix} $$
References
qiskit.circuit.library.ECRGatebqskit.ir.gates.ECRGatepennylane.ECR(note: PennyLane uses a different endian than the matrix provided above.)
Groups
This gate is contained in the following groups:
Back to home