Contact: benoit.vermersch (at) lpmmc.cnrs.fr

I am an associate professor at the University of Grenoble Alpes, member of the LPMMC. I am also researcher at the institute for quantum optics and quantum information (IQOQI), in Innsbruck.

I thank Agence Nationale de la Recherche (ANR-JCJC QRand), the Austrian Science Fundation (FWF-P32597N), and the LANEF and Nano-Science fundation, for financial support.

News

-2022.10: Internship/PhD available.Check our announcement

-2022.08: Our review article on Entanglement Hamiltonians has been published in Annelen der Physik
Link to the paper

-2022.01: Our paper on probing many-body quantum chaos with quantum simulators has been published in Physical Review X
Link to the paper Presentation by Lata Joshi

-2021.12: Our paper on measuring the quantum Fisher information from randomized measurements has been published in Physical Review Letters
Link to the paper

-2021.11: Our paper on importance sampling of randomized measurements has been published in Physical Review Letters
Link to the paper Github.

-2021.10: Our paper on Quantum Variational Learning of the Entanglement Hamiltonian has been published in Physical Review Letters
Link to the paper

Research interests

1. Synthetic quantum systems for quantum technologies

Measurement of entanglement entropies in a trapped-ion quantum simulator (Science 364, 260-263 (2019))

• Implementations with cold atoms, trapped ions, superconducting qubits,…
• Measurement protocols for Entanglement-related quantities, out-of-time ordered correlators, topological invariants.
• Selected publications: NP 14, 827–831 (2018), PRL 120, 050406 (2018), Science 364, 260-263 (2019)

2. Quantum networks

Quantum simulation and optimization in a hot quantum network [PRB 99, 241302(R) (2019)]

• Light-matter interfaces, quantum state transfer protocols, waveguide quantum electrodynamics.
• Selected publications: PRL 118, 133601 (2017), PRB 99, 241302(R) (2019), PRL 122, 093601 (2019)

3. Tensor-network numerical methods

Matrix-Product-state simulation of an entangling gate mediated by a multimode waveguide [PRB 99, 241302(R) (2019)]

• Matrix-Product-States and DMRG,TEBD related algorithms.

Publications

• arXiv
• Google Scholar
• ORCID

Selected presentations available for download

• Measuring scrambling and topological invariants via randomized measurements, Solvay workshop on quantum simulation, Brussels, 2019
• Probing quantum matter via randomized measurements, Seminars at Shanxi and Shanghai University (USTC), 2019.
• Quantum simulation and optimization with hot quantum networks, Seminars at Shanghai University (USTC), 2019.
• Probing mixed-state entanglement with randomized measurements, Talks at CoolMe/IQFA workshops, and LPT Toulouse, 2020-2021.
• Probing scrambling with randomized measurements, Youtube Link , Talk for the Geoflow Workshop (2021)
• Mixed-state entanglement with randomized measurements – Dynamical purification in synthetic quantum matter, Talks at Benasque – Entanglement in Strongly Correlated Systems, 2021, and Seminar at LPTMS (Orsay), March 2021.
• Importance sampling of randomized measurements to probe entanglement, Machine Learning for Quantum, July 2021.
• Probing entanglement in quantum technologies, CPTGA Day (broad audience talk), September 2021.
• Making randomized measurements a universal measurement toolbox, joint Innsbruck-Harvard seminar, November 2021.
• Intrication et ordinateurs quantiques, broad-audience seminar at ONERA, March 2022 (Youtube video in French)
• Understanding the role of entanglement in quantum computing Quantum Africa Conference, Kigali, September 2022 (online)
• Recent progress in the development of the randomized measurement toolbox Invited seminar at Tsinghua’s university, October 2022 (online)

Teaching

• Quantum algorithms (Master’s degree university Grenoble Alpes):
  • Lecture 1: From classical computers to quantum computers
  • Exercices 1
  • Solutions 1
  • Lecture 2: Quantum algorithms (1)
  • Exercices 2
  • Solutions 2
  • Lecture 2: Quantum algorithms (2)
  • Exercices 3
  • Solutions 3
  • Lecture 4: Quantum error correction
  • Exercices 4
  • Solutions 4
  • Lecture 5: Quantum simulation and quantum optimization
  • Exam 2021/2022
  • Solutions Exam 2021/2022

Short CV

• 2021 Habilitation diploma (HDR), University Grenoble-Alpes.
• 2019- Associate professor, University Grenoble-Alpes.
• 2017-2019 Senior scientist at the University of Innsbruck, group of Peter Zoller.
• 2013-2017 Postdoctoral fellow at the University of Innsbruck, group of Peter Zoller.
• 2010-2013 PhD student under the supervision of Jean-Claude Garreau, University of Lille.
• 2006-2010 École Polytechnique.

Python scripts

• Numpy scripts to analyze randomized measurements performed on quantum devices: Github Link