Scalable quantum computer architecture with coupled donor-quantum dot qubits
First Claim
1. A quantum bit computing apparatus comprising:
- a semiconductor layer;
a plurality of donor atoms embedded in the semiconductor layer, the plurality of donor atoms being single spin memory donor atoms; and
a plurality of quantum dots arranged with the semiconductor layer, each of the plurality of quantum dots aligned with each of plurality of donor atoms to form a plurality of pairs, each pair including a donor atom and a quantum dot, wherein a first voltage is configured to be applied across a first pair of the plurality of pairs to control a coupling between a first donor atom and a first quantum dot of the first pair.
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Abstract
A quantum bit computing architecture includes a plurality of single spin memory donor atoms embedded in a semiconductor layer, a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, wherein a first voltage applied across at least one pair of the aligned quantum dot and donor atom controls a donor-quantum dot coupling. A method of performing quantum computing in a scalable architecture quantum computing apparatus includes arranging a pattern of single spin memory donor atoms in a semiconductor layer, forming a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, applying a first voltage across at least one aligned pair of a quantum dot and donor atom to control a donor-quantum dot coupling, and applying a second voltage between one or more quantum dots to control a Heisenberg exchange J coupling between quantum dots and to cause transport of a single spin polarized electron between quantum dots.
24 Citations
17 Claims
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1. A quantum bit computing apparatus comprising:
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a semiconductor layer; a plurality of donor atoms embedded in the semiconductor layer, the plurality of donor atoms being single spin memory donor atoms; and a plurality of quantum dots arranged with the semiconductor layer, each of the plurality of quantum dots aligned with each of plurality of donor atoms to form a plurality of pairs, each pair including a donor atom and a quantum dot, wherein a first voltage is configured to be applied across a first pair of the plurality of pairs to control a coupling between a first donor atom and a first quantum dot of the first pair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification