Abstract: A quantum component comprises: a substrate; two suspension electrodes; a plurality of gate electrodes arranged between the two suspension electrodes, the two suspension electrodes being raised relative to the gate electrodes; at least one nano-object element, in particular, a nanowire or a nanotube, suspended between the two suspension electrodes, the at least one nano-object element being placed above the gate electrodes, the electrodes of the quantum component comprising: a plurality of low frequency gate electrodes for defining electrostatic potentials in the nano-object element so as to enable at least two quantum dots to be formed in the nano-object element; at least one microwave gate electrode; and wherein at least one electrode comprises a magnetic material, preferably a ferromagnetic material, and is configured so as to apply an inhomogeneous magnetic field to the nano-object element over the spatial extent of the nano-object element.

Abstract: A magnetic component comprises a substrate supporting at least one pair of permanent magnets extending in a first direction, each magnet having an interaction end, the interaction ends being arranged facing one another, the pair of magnets being arranged so as to exert an antisymmetric magnetic field with a high magnetic field gradient along a second direction orthogonal to the first direction, under the effect of a magnetic field produced by external magnetic means.

Abstract: A quantum component comprises: a substrate; two suspension electrodes; a plurality of gate electrodes arranged between the two suspension electrodes, the two suspension electrodes being raised relative to the gate electrodes; at least one nano-object element, in particular, a nanowire or a nanotube, suspended between the two suspension electrodes, the at least one nano-object element being placed above the gate electrodes, the electrodes of the quantum component comprising: a plurality of low frequency gate electrodes for defining electrostatic potentials in the nano-object element so as to enable at least two quantum dots to be formed in the nano-object element; at least one microwave gate electrode; and wherein at least one electrode comprises a magnetic material, preferably a ferromagnetic material, and is configured so as to apply an inhomogeneous magnetic field to the nano-object element over the spatial extent of the nano-object element.