Experimental set up





  1. (a) Schematic of the microdevice, where two electrons are trapped in a double-well potential created by electrodes 1-7. The read-out is provided by two superconducting resonators dispersively coupled to electron's in-plane motional states.
  2. (b) Coupling constants from each individual electrode beneath the helium layer.
  3. (c+d) The electron's energy in a double-well electrostatic potential (solid line). Dashed and dot-dashed lines represent the harmonic approximations of left and right wells respectively.