Silicon Quantum Dots with Counted Antimony Donor Implants

Deterministic control over the location and number of donors is crucial to donor spin quantum bits (qubits) in semiconductor based quantum computing. In this work, a focused ion beam is used to implant antimony donors close to quantum dots. Ion detectors are integrated next to the quantum dots to se...

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Published in:arXiv.org 2015-12
Main Authors: Singh, M, Pacheco, J L, Perry, D, Garratt, E, G Ten Eyck, Bishop, N C, Wendt, J R, Manginell, R P, Dominguez, J, Pluym, T, Luhman, D R, Bielejec, E, Lilly, M P, Carroll, M S
Format: Article
Language:English
Subjects:
Antimony
Implants
Ion beams
Ion detectors
Ionization
Offsets
Quantum computing
Quantum dots
Quantum theory
Qubits (quantum computing)
Transplants & implants
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container_title arXiv.org
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creator Singh, M
Pacheco, J L
Perry, D
Garratt, E
G Ten Eyck
Bishop, N C
Wendt, J R
Manginell, R P
Dominguez, J
Pluym, T
Luhman, D R
Bielejec, E
Lilly, M P
Carroll, M S
description Deterministic control over the location and number of donors is crucial to donor spin quantum bits (qubits) in semiconductor based quantum computing. In this work, a focused ion beam is used to implant antimony donors close to quantum dots. Ion detectors are integrated next to the quantum dots to sense the implants. The numbers of donors implanted can be counted to a precision of a single ion. In low-temperature transport measurements, regular coulomb blockade is observed from the quantum dots. Charge offsets indicative of donor ionization are also observed in devices with counted donor implants.
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subjects Antimony
Implants
Ion beams
Ion detectors
Ionization
Offsets
Quantum computing
Quantum dots
Quantum theory
Qubits (quantum computing)
Transplants & implants
title Silicon Quantum Dots with Counted Antimony Donor Implants
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