2 papers
quant-ph2025
Classification and implementation of unitary-equivariant and permutation-invariant quantum channels
Laura Mančinska, Elias Theil
Many quantum information tasks use inputs of the form , which naturally induce permutation and unitary symmetries. We classify all quantum channels that respect both…
quant-ph2024
A memory and gate efficient algorithm for unitary mixed Schur sampling
Enrique Cervero-Martín, Laura Mančinska, Elias Theil
We formalize the task of unitary Schur sampling -- an extension of weak Schur sampling -- which is the process of measuring the Young label and the unitary group register of an inp…