collaborators

18 papers

quant-ph2026

Fast quantum measurement tomography with optimal error bounds

Leonardo Zambrano, Sergi Ramos-Calderer, Richard Kueng

We present a two-step protocol for quantum measurement tomography that is light on classical co-processing cost and still achieves optimal sample complexity. Given measurement data…

quant-ph2026

Local robust shadows on a trapped ion computer -- a case study

Jadwiga Wilkens, Milena Guevara-Bertsch, Marwa Marso +6

We experimentally demonstrate local robust shadows on a trapped-ion quantum computing system, a protocol developed to counteract measurement errors. We alternate between a calibrat…

quant-ph2026

Harmoniq: Efficient Data Augmentation on a Quantum Computer Inspired by Harmonic Analysis

Kristina Kirova, Monika Doerfler, Franz Luef +1

Quantum machine learning has attracted significant interest in recent years. Most existing approaches, however, are variational in nature and require extensive parameter optimizati…

quant-ph2026

An Online Approach for Entanglement Verification Using Classical Shadows

Marwa Marso, Sabrina Herbst, Jadwiga Wilkens +3

Quantum measurements are slow, while classical processors are fast, yet existing hybrid protocols never exploit this asymmetry. In this work, we propose an alternative formulation…

quant-ph2026

Concentration for random product formulas

Chi-Fang Chen, Hsin-Yuan Huang, Richard Kueng +1

Quantum simulation has wide applications in quantum chemistry and physics. Recently, scientists have begun exploring the use of randomized methods for accelerating quantum simulati…

quant-ph2026

QuickQudits: A Framework for Efficient Simulation of Noisy Qudit Clifford Circuits via an Extended Stabilizer Tableau Formalism

Nina Brandl, Mykyta Cherniak, Johannes Kofler +1

We present a comprehensive and self-contained framework for the efficient classical simulation of Clifford circuits acting on -dimensional qudits, including realistic Pauli/Weyl…