Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Thomas Bedecarrats

Maud Vinet

Heimanu Niebojewski

Jean Charbonnier

Benoit Bertrand

Yann-Michel Niquet

Candice Thomas

Hélène Jacquinot

A method for manufacturing a quantum electronic circuit includes etching a semiconducting layer so as to obtain: a plurality of pillars; and a qubit layer; oxidising the flank of each pillar; forming coupling rows and coupling columns; and depositing separation layers leaving a contact surface protrude from each pillar.

Method for manufacturing a quantum electronic circuit

A spin qubit quantum device includes a semiconductor portion having a first region disposed between two second regions; a first control gate disposed in direct contact with the first region and configured to control a minimum potential energy level in the first region, and disposed in direct contact with a first face of the semiconductor portion; and second electrostatic control gates, each disposed in direct contact with one of the second regions and configured to control a maximum potential energy level in one of the second regions, and disposed in direct contact with a second face, opposite to the first face, of the semiconductor portion, The first gate is not aligned with the second gates.

Device comprising electrostatic control gates distributed on two opposite faces of a semiconductor portion

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Grenoble, France

Thomas Bedecarrats