Author

Michal Studzi'nski

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Preprint Oct 2026

Degeneracy graph determinants and higher-dimensional Young diagrams

Kemp and Ramgoolam proposed a basis of monomials for a commutative semisimple algebra with generators \(C_1,\ldots, C_L\), constructed from a degeneracy graph which records how the eigenspaces of \( C_1\) are successively split by \( C_2,\ldots, C_L\). They showed that the basis property is equivalent to the non-vanish...

S. Ramgoolam, Michal Studzinski · 0 citations

Preprint Jul 2026

Exponential de Finetti Theorems for Fermionic Gaussian States

We prove an exponential variant of the Gaussian de Finetti theorem: the subsystems of permutation-invariant, free-fermionic Gaussian states are well-approximated by convex combinations of almost-i.i.d. states that are Gaussian on subsets of their parts. Our result provides an error bound between the original state and...

Jędrzej Burkat, Michal Studzi'nski, Sergii Strelchuk · 0 citations