Intel Corporation
Magnetic contacts for spin qubits

Abstract:

Systems, apparatus, and methods for initializing spin qubits with no external magnetic fields are described. An apparatus for quantum computing includes a quantum well and a pair of contacts. At least one of the contacts is formed of a ferromagnetic material. One of the contacts in the pair of contacts interfaces with a semiconductor material at a first position adjacent to the quantum well and the other contact in the pair of contacts interfaces with the semiconductor material at a second position adjacent to the quantum well. The ferromagnetic material initializes an electron or hole with a spin state prior to injection into the quantum well.