Terrorism, guerrilla warfare/counterinsurgency/low-intensity conflict, and revolutions : 1986-June 1988 /

"June 1988."

Transformations of heavy metals and plant nutrients in dredged sediments as affected by oxidation reduction potential and pH : final report /

"May 1977."

Measurement of redox potential and determination of ferrous iron in ground water /

Includes bibliographical references (p. 100-103).

Bibliography of low energy electron and photon cross section data (through December 1974) /

Includes index.

Enriched teaching of mathematics in the junior and senior high school; a source book for teachers of mathematics, listing chiefly free and low cost illustrative and supplementary materials,

Blank pages are provided at the end of each section for listing additional sources.

Bibliography of low energy electron and photon cross section data, (January 1975 through December 1977) /

Includes indexes.

Testing drugs for physical dependence potential and abuse liability /

Mode of access: Internet.

Low oil prices and the Illinois oil industry : effects, outlook, and policy recommendations /

Includes bibliographical references (p. 14).

Recycling nickel electroplating rinse waters by low temperature evaporation and reverse osmosis /

"Contract no. CR-815829."

Manpower analysis within an interdisciplinary framework : theoretical potential and empirical problems /

Bibliography: p. 22-23.

USGS geochemical studies outline mineral potential and environmental hazards in southeastern Oregon.

Mode of access: Internet.

The effects of J-gate potential and interfaces on donor exchange coupling in the Kane quantum computer architecture

We calculate the electron exchange coupling for a phosphorus donor pair in silicon perturbed by a J-gate potential and the boundary effects of the silicon host geometry. In addition to the electron-electron exchange interaction we also calculate the contact hyperfine interaction between the donor nucleus and electron as a function of the varying experimental conditions. Donor separation, depth of the P nuclei below the silicon oxide layer and J-gate voltage become decisive factors in determining the strength of both the exchange coupling and hyperfine interaction-both crucial components for qubit operations in the Kane quantum computer. These calculations were performed using an anisotropic effective-mass Hamiltonian approach. The behaviour of the donor exchange coupling as a function of the parameters varied in this work provides relevant information for the experimental design of these devices.