Experimental 1D quantum simulation using an oxide nanoelectronics platform

ORAL

Abstract

We are interested in developing a solid state quantum simulation platform which could be used to study important Hamiltonians like the Hubbard model and investigate phenomena such as high temperature superconductivity. Using the nanoscale control that has been demonstrated in modifying the 2DEG at the LaAlO$_3$/SrTiO$_3$ interface\footnote{Cen, C. \textit{et al}. \textit{Nature Mater}. \textbf{7}, 298--302 (2008).}, we are attempting to create an artificial system with which to study these phenomena that is decoupled from the underlying lattice. We use conductive AFM lithography to create one-dimensional structures at the LaAlO$_3$/SrTiO$_3$ interface with the goal of determining the relationship between external parameters that can be controlled in the LaAlO$_3$/SrTiO$_3$ system (i.e., $V(x, y)$, back gates, and side gates) and parameters in a Hubbard model description of the physical system. These tools could be used to create a solid state quantum simulation platform providing Hamiltonian level control over artificially created systems.

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Authors

  • Megan Kirkendall

    University of Pittsburgh

  • Dongyue Yang

    University of Pittsburgh

  • Patrick Irvin

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh

  • Jeremy Levy

    University of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh

  • Sangwoo Ryu

    Dept. of Materials Science and Engineering, University of Wisconsin-Madison, Wisconsin 53706, USA, University of Wisconsin-Madison

  • Chang-Beom Eom

    Dept. of Materials Science and Engineering, University of Wisconsin-Madison, Wisconsin 53706, USA, University of Wisconsin-Madison, Department of Materials Sciences and Engineering, University of Wisconsin-Madison