Daniel Lemus

iLow Rank Approximation – QTBM Basis


  • QTBM is a highly stable and fast way to solve for device modes
  • System block matrices can be reduced from thousands of rows to tens of rows


  • System is filtered to include only degrees of freedom that contribute to propagating modes
  • Using ballistic QTBM solution, self-consistent scattering calculations are performed with low rank matrices


  • Elastic scattering low rank solution shows low error when compared to full basis solution

Powerpoint slide as pdf.