Quantum information for quantum technology
I am a tenure-track scientist at the Paul Scherrer Institute, working at the interface of quantum information theory, many-body physics, and quantum computation and simulation.
Together with PhD students and postdocs at PSI, and with theoretical and experimental partners around the world, I study quantum devices as controllable many-body systems — developing ways to probe, benchmark, learn from, and ultimately use them for quantum simulation and quantum computation.
I am currently looking for PhD students and postdocs — see Opportunities.
A few directions we’re currently working on:
- Randomized measurements, classical shadows, and benchmarking at scale — extracting reliable information from quantum devices with minimal measurement resources, and turning that data into rigorous diagnostics of device performance and many-body properties as systems grow.
- Learning in devices beyond qubits — extending randomized-measurement and learning protocols to hybrid qubit–boson architectures and ultracold-atom platforms, where Hilbert spaces, measurements, and dynamics differ qualitatively from the standard circuit model.
- Quantum simulation and classical complexity — digital–analog protocols for quantum simulation and understanding the classical simulation complexity of quantum dynamics.
News
- May 2026 — Our QuantERA grant Digital-analog methods in quantum simulation has been approved. Together with Monika Aidelsburger (LMU Munich), Daniel González-Cuadra (UAM Madrid), Philipp Preiss (MPQ), and Alexander Schuckert (ENS Paris), we will develop digital-analog approaches to quantum simulation, in particular for neutral atom devices. More information on our webpage.
- Apr 2026 — Our paper RandomMeas.jl: A Julia Package for Randomized Measurements in Quantum Devices was published in Quantum. Joint work with Benoît Vermersch (Grenoble) — the toolbox is available as an open-source Julia package.
- Apr 2026 — Our SNF Project Funding grant QMD — Quantum molecular dynamics on complementary quantum hardware platforms has been approved. Together with Cornelius Hempel (PSI), Alexander Grimm (PSI), and Markus Reiher (ETH Zürich), we will develop quantum simulations of molecular dynamics on complementary quantum hardware.
- Jan 2026 — Our paper Optimal randomized measurements for a family of non-linear quantum properties was published in PRX Quantum. Joint work with Zhenyu Du, Yifan Tang, Ingo Roth, Jens Eisert, and Zhenhuan Liu.
See also: Research · Publications · Software · People · Opportunities.