qat.lang.Y

qat.lang.Y

Definition of the \(Y\) gate (of arity \(1\)). This gate is part of the default gate set of myQLM and is defined in the default gate set default_gate_set().

Apply gate

from qat.lang import qrout, Y

@qrout
def circ():
    Y(0)

Control gate

from qat.lang import qrout, Y

@qrout
def ctrl_circ():
    Y.ctrl()(0, 1)

Multi-controlled gate

from qat.lang import qrout, Y

@qrout
def multi_ctrl_circ():
    Y.ctrl(2)(0, 1, 2)

Reverse gate

from qat.lang import qrout, Y

@qrout
def reversed_circ():
    Y.dag()(0)

This \(Y\) gate is defined by:

\[\begin{split}\begin{vmatrix} 0 & -i \\ i & 0 \\ \end{vmatrix}\end{split}\]