Adenilton Silva

Thanks, @israelferrazaraujo. This PR also makes Isometry decomposition phase correct #4687.

Hi @1ucian0 , Can I work on this?

Hi @1ucian0 , We have been working on this issue. Instead of using theorem 5 in https://arxiv.org/abs/1501.06911 , this issue motivated us to develop a new decomposition that requires a...

Thanks @jakelishman, We intend to contribute with an n-qubit multi-controlled su(2) decomposition that requires ~16n cx if the gate has one real diagonal and ~20n for any other su2 gate.

Hi everyone, I am reporting what we have done up until now about this issue. We found some problems that need a fix concerning multi-controlled gates: multi-controlled rotations grow exponentially...

@ewinston. PR #9836 fix the mcrz. However it breaks backward compatibility tests. It is also necessary to include the multiplexer with a small number of control qubits as in #9574.

> Another synthesis method for MCX gates: if we also allow ancillas, then I think that the best method appears here: https://arxiv.org/abs/1508.03273 > >   Hi @ShellyGarion, in this...

The [approximated multi controlled U(2) without ancillary qubits](https://arxiv.org/abs/2310.14974) is implemented in qclib. pip install qclib ```python import numpy as np import qiskit from qiskit.quantum_info import Operator from qclib.gates.mcu import MCU...

> > It is also possible to decompose a multi controlled U(2) gate with linear circuit depth [1] and also with linear circuit size if we allow an approximation [2]...

Thanks @ShellyGarion. There is also #8710.