Detection of electron scattering in an isolated double quantum dot system

We measure single electron movement between two coupled quantum dots each isolated from a reservoir. The electrons movement is detected using a 1-D channel placed next to the double dot system. The electrostatic energy required to move an electron from one dot to a reservoir is half that required to move the electron from one dot to the other dot. We estimate the maximum intra-dot scattering time at View the MathML source. This scattering time corresponds to a lifetime broadening equal to the thermal broadening View the MathML source indicating that the scattering time may be longer than this.