Author

P. S. Tarabunga

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Preprint Aug 2026

Williamson majorization theory of fermionic non-Gaussianity

Pure-state entanglement rests on a single algebraic backbone: majorization of the Schmidt spectrum governs state conversion under local operations and classical communication, and constrains entanglement monotones. Here we establish a corresponding majorization law for fermionic non-Gaussianity, the resource that eleva...

X. Turkeshi, P. Sierant, P. S. Tarabunga · 4 citations

Preprint Jul 2026

Computable fermionic non-Gaussianity from the covariance matrix

A resource-theoretic framework for computable fermionic non-Gaussianity is established that unifies notions arising across quantum information, condensed-matter physics, and quantum chemistry, opening new directions for studying the complexity of quantum many-body systems and providing practical tools to assess the cla...

P. S. Tarabunga, B. Jobst, Ra'ul Morral-Yepes et al. · 5 citations