Solid core spin quantum computing element

摘要

A voltage is applied (103B) gate electrode strong magnetic field two-dimensional electron system (101) on the (103A), and selects the current polarity flowing in (102S) between the ohmic electrode (102D), the quantum Hall end state initialize the nuclear spin polarization to rise to electron spin reversal based on the non-equilibrium distribution of electrons, the nuclear spin polarization by applying an oscillating electric field of nuclear magnetic resonance frequency (104B) coplanar waveguide and (104A) controls, and reads the nuclear spin polarization by measuring the Hall resistivity by (102VB) ohmic electrode (102VA). According to the solid core spin quantum computing device of the present invention, and can be prepared by adding a fine metal gate structure to the quantum Hall effect device which is realized by a semiconductor two-dimensional electron system, control of nuclear spins in a small number, so that the initialization of the nuclear spins of a few, unitary transformation of the nuclear spins of a few, and read out a few nuclear spins.