dc.contributor.author Boyd, Erin E. dc.contributor.author Westervelt, Robert M. dc.date.accessioned 2012-08-03T22:08:01Z dc.date.issued 2011 dc.identifier.citation Boyd, Erin E., and Robert M. Westervelt. 2011. Extracting the density profile of an electronic wave function in a quantum dot. Physical Review B 84(20): 205308. en_US dc.identifier.issn 1098-0121 en_US dc.identifier.issn 1550-235X en_US dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:9366598 dc.description.abstract We use a model of a one-dimensional nanowire quantum dot to demonstrate the feasibility of a scanning probe microscope (SPM) imaging technique that can extract both the energy of an electron state and the amplitude of its wave function using a single instrument. This imaging technique can probe electrons that are buried beneath the surface of a low-dimensional semiconductor structure and provide valuable information for the design of quantum devices. A conducting SPM tip, acting as a movable gate, measures the energy of an electron state using Coulomb blockade spectroscopy. When the tip is close to the nanowire dot, it dents the wave function $\Psi(x)$ of the quantum state, changing the electron's energy by an amount proportional to $\mid\Psi(x)\mid^2$. By recording the change in energy as the SPM tip is moved along the length of the dot, the density profile of the electronic wave function can be found along the length of the quantum dot. en_US dc.description.sponsorship Engineering and Applied Sciences en_US dc.language.iso en_US en_US dc.publisher American Physical Society en_US dc.relation.isversionof doi:10.1103/PhysRevB.84.205308 en_US dash.license OAP dc.title Extracting the Density Profile of an Electronic Wave Function in a Quantum Dot en_US dc.type Journal Article en_US dc.description.version Author's Original en_US dc.relation.journal Physical Review B en_US dash.depositing.author Westervelt, Robert M. dc.date.available 2012-08-03T22:08:01Z dc.identifier.doi 10.1103/PhysRevB.84.205308 * dash.contributor.affiliated Westervelt, Robert
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