Realistic structures for electron interferometers constituted by the control of the wavefunctions in double quantum wire structures

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Abstract
To constitute Aharonov–Bohm type electron interferometers, we propose a double‐quantum‐wire array with Schottky gates fabricated from modulation‐doped asymmetric double quantum well structures. Self‐consistent calculation of the electron wave functions and calculation of the electron wave propagation by scattering matrix formalism with two‐dimensional assumption have been performed in the proposed structure. It is shown that an exact 1:1 beam splitter can be realized by a properly designed barrier between the two quantum wires.