update doc links

qiskit/circuit/library/generalized_gates/unitary.py

@@ -125,7 +125,7 @@ def inverse(self, annotated: bool = False):
         return self.adjoint()
 
     def conjugate(self):
-        """Return the complex conjugate of the unitary with respect to the representation returned by ``to_matrix``."""
+        """Return the complex conjugate of the unitary with respect to the representation returned by :meth:`~UnitaryGate.to_matrix`."""
         return UnitaryGate(numpy.conj(self.to_matrix()))
 
     def adjoint(self):

qiskit/quantum_info/operators/symplectic/sparse_pauli_op.py

@@ -293,7 +293,7 @@ def __setitem__(self, key, value):
     # ---------------------------------------------------------------------
 
     def conjugate(self):
-        """Return the complex conjugate with respect to the representation returned by ``to_matrix``."""
+        """Return the complex conjugate with respect to the representation returned by :meth:`~SparsePauliOp.to_matrix`."""
         # Conjugation conjugates phases and also Y.conj() = -Y
         # Hence we need to multiply conjugated coeffs by -1
         # for rows with an odd number of Y terms.

qiskit/quantum_info/states/densitymatrix.py

@@ -212,7 +212,7 @@ def to_operator(self) -> Operator:
         return Operator(self.data, input_dims=dims, output_dims=dims)
 
     def conjugate(self):
-        """Return the complex conjugate of the density matrix with respect to the basis of the vector components returned by :meth:`data`."""
+        """Return the complex conjugate of the density matrix with respect to the basis of the vector components returned by :meth:`~DensityMatrix.data`."""
         return DensityMatrix(np.conj(self.data), dims=self.dims())
 
     def trace(self):

qiskit/quantum_info/states/stabilizerstate.py

@@ -195,7 +195,7 @@ def to_operator(self) -> Operator:
 
     def conjugate(self):
         """Return the complex conjugate of the underlying Clifford operator with
-        respect to the representation returned by the operator's ``to_matrix`` method."""
+        respect to the representation returned by the operator's :meth:`~StabilizerState.to_matrix` method."""
         ret = self.copy()
         ret._data = ret._data.conjugate()
         return ret

qiskit/quantum_info/states/statevector.py

@@ -254,7 +254,7 @@ def to_operator(self) -> Operator:
         return Operator(mat, input_dims=self.dims(), output_dims=self.dims())
 
     def conjugate(self) -> Statevector:
-        """Return the complex conjugate of the state vector with respect to the basis of the vector components returned by :meth:`data`."""
+        """Return the complex conjugate of the state vector with respect to the basis of the vector components returned by :meth:`~StateVector.data`."""
         return Statevector(np.conj(self.data), dims=self.dims())
 
     def trace(self) -> np.float64: