Workshop topic: Tensor network techniques are well-established numerical tools forsolving seemingly exponentially hard problems in quantum many-body physics with important successes in the simulation of model correlated electronic systems, quantum magnetisms and quantum computers. In this tensor network historical use, the quantum many-body wave function is compressed, using tensor networks, allowing for a considerable speed-up of an otherwize impossible calculation.

In the last few years, a crucial piece of learning algorithm (e.g. the Tensor Cross Interpolation algorithm) has emerged. These techniques can learn a tensor network representation of a mathematical object a priori unrelated to tensors. These new algorithms provide a path to transfer all the technology that have been developped for the quantum many-body wave function to an entirely new set of mathematical problems: Integrals in high dimensions, Partial differential equations, function optimization. New applications for e.g. computational fluid dynamics, basis set in chemistry, Feynman diagram calculations, plasma physics…are quickly emerging.

This workshop will gather important players in this emerging field, from both the applied mathematics and theoretical physics communities, to discuss these exciting new applications and algorithms. The schedule will be kept relatively light to leave as much room for scientific discussions as possible.

CHUNG Chia-Min, National Sun Yat-Sen University (Taïwan) ; KAKSCH Dieter, University of Hamburg (Germany) ; KAO Ying-Jer, National Taïwan University (Taïwan) ; KAUCH Anna, Vienna University of Technology (TU Wien, Austria) ; KAYE Jason, Flatiron Institute (USA) ; KHOO Yuehaw, University of Chicago (USA) ; LADO Jose, Aalto University (Finland) ; LINDSAY Michael J., University of California, Berkeley (USA) ; NUNEZ-FERNANDEZ Yuriel, Néel Institute, CNRS (France) ; OSELEDETS Ivan, Skolkovo Institute of Science and Technology (Russia) ; PARCOLLET Olivier, Flatiron Institute (USA) ; RITTER Marc, Ludwig Maximilian University of Munich (Germany) ; SAKURAI Rihito, Tokyo University of Science (Japan) ; SAVOSTYANOV Dmitry, University of Essex (UK) ; WALLERBERGER Markus, Vienna University of Technology (TU Wien, Austria).

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Attending the workshop is free but subject to approval. There is a limited number of 50 attendees.

Registration and abstract submissions: from May 15 to July 15

Acceptance notification for both oral presentation and attendance: July 15 to July 30

The Workshop: from October 6, 9:00 am to october 10, 12:00 am

This workshop will take place at the Y.SPOT Partners 5 place Nelson Mandela in Grenoble, France. (Click on the link)

International Airports near Grenoble: 

• How to go to Lyon Airport st Exupéry:
  
  • Bus (≃ 1h): Grenoble bus station ➔ Lyon Airport St Exupéry.  Check the buses HERE (either Flixbus or blablacar)
  • Train (≃ 1h) : Grenoble train station ➔ Lyon Airport St Exupéry. Book your train on SNCF Connect
    
   
   

• How to go to Geneva airport:
  
  • Option 1 : train Grenoble train station ➔ Genève Cornavin + train Genève Cornavin ➔ Geneva Airport
    • First, book the train: Grenoble train station ➔  Gevève Cornavin on SNCF Connect (direct: 2h02 or with a change: 4h14)
    • Book the train Gevène Cornavin ➔  Geneva Aiport on SBB CFF FFS

• • Option 2 : bus Grenoble gare ➔ Geneva airport
    • Blablacar (≃ 2h50 - ≃ 20 €)
    • Flixbus (≃ 3h00 - ≃ 20 €)

How to go to the workshop from the Grenoble train station:

• 19 min by walk (1,1 km). Click on the link to see the route
  

• Access by tram:
  • Tram train station: "Grenoble Gares"
  • Take the tram B toward  "Oxford"
  • Stop at the "Cité Internationale" tram station.
  • Walk 5 min to the 5 place nelson mandela. Click on the link to see the route. 

Jan von Delft (Ludwig-Maximilians-Universität, Munich, Germany), Hiroshi Shinaoka (Saitama university, Japon) and Xavier Waintal (University Grenoble Alpes, Pheliqs CEA Grenoble, France)

The House of Quantum Alps run by the University Grenoble Alpes (UGA) as part of a consortium of actors involving CEA (Alternative and Atomic Energies Agency), CNRS (National Center for Scientific Research), Inria (National Institute for Research in Digital Science and Technology) and Grenoble INP - UGA (Grenoble Polytechnical Institute) is the initiative of the actors of the Auvergne Rhônes Alpes territory to respond to the hallenges of quantum computing France 2030 implemented in the region from the Hybrid Quantum Initiative (HQI) program supported by the CEA. Its objective : to be a place of exchange and guide indutrials from all sectors on the possibilities of developing these approaches for theirs business applications.

The House of Quantum Alps exists since April 1st 2025.