Daniel Lemus

iLow Rank Approximation – QTBM Basis

Motivation:

  • 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

Approach:

  • 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

Results:

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

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