92 citations · 221 across the 18 of their papers we have counts for
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Target-space fusion of classical topological defects
Saskia Demulder, Chuying Wang
Classical fusion of sigma-model defects is commonly approached by combining their worldsheet actions and eliminating the intermediate fields. This procedure, however, does not syst…
Stringy T-duality on the lattice and the twisted Villain model
Coraline Bacq, Alessio Caddeo, Saskia Demulder +1
We address the question of whether dualities formulated in continuum field theory can be realised exactly at finite lattice spacing, rather than only emerging in the infrared. In t…
Non-invertible circuit complexity from fusion operations
Saskia Demulder
Modern understanding of symmetry in quantum field theory includes both invertible and non-invertible operations. Motivated by this, we extend Nielsen's geometric approach to quantu…
Non-invertible Nielsen circuits and 3d Ising gravity
Saskia Demulder
We extend Nielsen's formulation of quantum circuit complexity to include intrinsically non-invertible operations. Such gates arise from fusion with topological defect operators and…