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20242026
most citedCups and Gates I: Cohomology invariants and logical quantum operations

5 citations · 6 across the 8 of their papers we have counts for

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quant-ph2024★ 1 cited

Pruning qLDPC codes: Towards bivariate bicycle codes with open boundary conditions

Jens Niklas Eberhardt, Francisco Revson F. Pereira, Vincent Steffan

Quantum low-density parity-check codes are promising candidates for quantum error correcting codes as they might offer more resource-efficient alternatives to surface code architec…

quant-ph2024★ 5 cited

Cups and Gates I: Cohomology invariants and logical quantum operations

Nikolas P. Breuckmann, Margarita Davydova, Jens N. Eberhardt +1

We take initial steps towards a general framework for constructing logical gates in general quantum CSS codes. Viewing CSS codes as cochain complexes, we observe that cohomology in…

math.RT2024

Universal Koszul Duality for Kac-Moody Groups

Jens Niklas Eberhardt, Arnaud Eteve

We prove a monoidal equivalence, called universal Koszul duality, between genuine equivariant K-motives on a Kac-Moody flag variety and constructible monodromic sheaves on its Lang…

math.RT2024

Two proofs of a Jantzen Conjecture for Whittaker Modules

Jens Niklas Eberhardt, Anna Romanov

We define a filtration of a standard Whittaker module over a complex semisimple Lie algebra and and establish its fundamental properties. Our filtration specialises to the Jantzen…

math.CO2024

An Intersection Matrix for Affine Hyperplane Arrangements

Jens Niklas Eberhardt, Carl Mautner

For a real affine hyperplane arrangement, we define an integer intersection matrix with a natural -deformation related to the intersections of bounded chambers of the arrangemen…

quant-ph2024

Logical Operators and Fold-Transversal Gates of Bivariate Bicycle Codes

Jens Niklas Eberhardt, Vincent Steffan

Quantum low-density parity-check (qLDPC) codes offer a promising route to scalable fault-tolerant quantum computation with constant overhead. Recent advancements have shown that qL…