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Title: Electron spin-based information shuttling for a computer system

Patent ·
OSTI ID:1459000

A silicon metal-oxide semiconductor device transports a spin-polarized single electron. An array of silicon quantum dot electrodes is arranged atop a silicon dioxide layer of a silicon metal-oxide semiconductor. The array comprises at least a first electrode and a second electrode adjacent to the first electrode. A transport control logic for individually controls a voltage applied to the electrodes. The transport control logic is configured to gradually decrease a voltage at the first electrode while gradually increasing a voltage at the second electrode. Localization of the single electron is adiabatically transferred from the first electrode to the second electrode while maintaining a desired energy gap between a ground state and a first excited state of the single electron.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Number(s):
10,002,328
Application Number:
15/381,819
OSTI ID:
1459000
Resource Relation:
Patent File Date: 2016 Dec 16
Country of Publication:
United States
Language:
English

References (7)

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Coherent electronic transfer in quantum dot systems using adiabatic passage journal December 2004
Photon Emission from a Cavity-Coupled Double Quantum Dot journal July 2014
Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits journal April 2012
Fault-tolerant architecture for quantum computation using electrically controlled semiconductor spins journal December 2005
A two-qubit logic gate in silicon journal October 2015