165 citations · 342 across the 7 of their papers we have counts for
7 papers
High-Precision Observable Estimation with Single Qubit Quantum Memory
L. A. Markovich, J. Borregaard
The estimation of multi-qubit observables is a key task in quantum information science. The standard approach is to decompose a multi-qubit observable into a weighted sum of Pauli…
Quantum memory assisted observable estimation
Liubov A. Markovich, Attaallah Almasi, Sina Zeytinoğlu +1
The estimation of many-qubit observables is an essential task of quantum information processing. The generally applicable approach is to decompose the observables into weighted sum…
Efficient and robust estimation of many-qubit Hamiltonians
Daniel Stilck França, Liubov A. Markovich, V. V. Dobrovitski +2
Characterizing the interactions and dynamics of quantum mechanical systems is an essential task in the development of quantum technologies. We propose an efficient protocol based o…
Lindblad Tomography of a Superconducting Quantum Processor
Gabriel O. Samach, Ami Greene, Johannes Borregaard +15
As progress is made towards the first generation of error-corrected quantum computers, robust characterization and validation protocols are required to assess the noise environment…
A variational toolbox for quantum multi-parameter estimation
Johannes Jakob Meyer, Johannes Borregaard, Jens Eisert
With an ever-expanding ecosystem of noisy and intermediate-scale quantum devices, exploring their possible applications is a rapidly growing field of quantum information science. I…
Noise-robust exploration of many-body quantum states on near-term quantum devices
Johannes Borregaard, Matthias Christandl, Daniel Stilck França
We describe a resource-efficient approach to studying many-body quantum states on noisy, intermediate-scale quantum devices. We employ a sequential generation model that allows us…
One-way quantum repeater based on near-deterministic photon-emitter interfaces
Johannes Borregaard, Hannes Pichler, Tim Schöder +3
We propose a novel one-way quantum repeater architecture based on photonic tree-cluster states. Encoding a qubit in a photonic tree-cluster protects the information from transmissi…