Browsing by Author "Churchill, Hugh Olen Hill"

Now showing items 1-5 of 5

    • Carbon Nanotubes for Coherent Spintronics 

      Kuemmeth, Ferdinand; Churchill, Hugh Olen Hill; Herring, Patrick Kenichi; Marcus, Charles Masamed (Elsevier Science Limited, 2010)
      Carbon nanotubes bridge the molecular and crystalline quantum worlds, and their extraordinary electronic, mechanical and optical properties have attracted enormous attention from a broad scientific community. We review ...

    • Electron–Nuclear Interaction in \(^{13}C\) Nanotube Double Quantum Dots 

      Churchill, Hugh Olen Hill; Bestwick, Andrew J.; Harlow, Jennifer W.; Kuemmeth, Ferdinand; Marcos, David; Stwertka, Carolyn H.; Watson, Susan K.; Marcus, Charles Masamed (Nature Publishing Group, 2009)
      For coherent electron spins, hyperfine coupling to nuclei in the host material can either be a dominant source of unwanted spin decoherence or, if controlled effectively, a resource enabling storage and retrieval of quantum ...

    • Quantum Dots in Gated Nanowires and Nanotubes 

      Churchill, Hugh Olen Hill (2012-08-17)
      This thesis describes experiments on quantum dots made by locally gating one-dimensional quantum wires. The first experiment studies a double quantum dot device formed in a Ge/Si core/shell nanowire. In addition to measuring ...

    • Relaxation and Dephasing in a Two-Electron \(^{13}C\) Nanotube Double Quantum Dot 

      Churchill, Hugh Olen Hill; Kuemmeth, Ferdinand; Harlow, Jennifer W.; Bestwick, Andrew J.; Rashba, Emmanuel; Flensberg, Karsten; Stwertka, Carolyn H.; Taychatanapat, Thiti; Watson, Susan K.; Marcus, Charles Masamed (American Physical Society, 2009)
      We use charge sensing of Pauli blockade (including spin and isospin) in a two-electron \(^{13}C\) nanotube double quantum dot to measure relaxation and dephasing times. The relaxation time \(T_1\) first decreases with a ...

    • Spin-orbit effects in carbon-nanotube double quantum dots 

      Weiss, Sarah Avery; Rashba, Emmanuel; Kuemmeth, F; Churchill, H; Flensberg, K. (American Physical Society (APS), 2010)
      We study the energy spectrum of symmetric double quantum dots in narrow-gap carbon nanotubes with one and two electrostatically confined electrons in the presence of spin-orbit and Coulomb interactions. Compared to GaAs ...