2 papers
quant-ph2026
Characterizing unitaries via quasi-process functions
Nasra Daher Ahmed, Ravi Kunjwal
It is well-known that every n-qubit unitary can be decomposed into a product of controlled single-qubit unitaries. We show that the control conditions in such a decomposition natur…
quant-ph2026
Causal inequalities witness non-stabilizerness
Leonardo Vaglini, Nasra Daher Ahmed, Ravi Kunjwal
Stabilizer operations describe a fragment of quantum theory that is known to be efficiently classically simulable, thanks to the Gottesman-Knill theorem. For this reason, nonstabil…