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physics.optics2026
Perturbative photonic matrix-vector multiplication with reduced phase-shift range
S. A. Fldzhyan, S. S. Straupe, M. Yu. Saygin
Programmable photonic meshes provide a promising platform for analog matrix-vector multiplication, but their scalability is often limited by the large phase-shift ranges required i…
physics.optics2026
Native QR Factorization on Programmable Photonic Meshes
S. A. Fldzhyan, S. S. Straupe, M. Yu. Saygin
We propose a photonic native procedure for computing the QR factorization of a matrix using a programmable unitary interferometer mesh. The method configures the mesh through a seq…
physics.optics2024
Low-depth, compact and error-tolerant photonic matrix-vector multiplication beyond the unitary group
S. A. Fldzhyan, M. Yu. Saygin, S. S. Straupe
Large-scale programmable photonic circuits are opening up new possibilities for information processing providing fast and energy-efficient means for matrix-vector multiplication. H…