18 papers
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…
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…
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…
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…
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…
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…