Scientific Calendar Event



Description


An ICTP Meeting

How the properties of impurities are modified by their interaction with a surrounding medium is a fundamental question across several research areas and different physical systems. Yet, a common set of ideas and technical tools can be applied to these seemingly different frameworks, the investigation of one system yielding information on another.

This conference aims to bring together leading experts in the multi-disciplinary study of impurity phenomena in a broad range of quantum systems, from ultracold atomic gases to strongly correlated electronic materials and heterostructures.

Topics
  • Impurities and Polarons in Ultracold Quantum Gases
  • Excitons, Polarons, and Exciton-Polaritons in 2D and Solid-State Systems
  • Polaron Formation, Dynamics, and Non-Equilibrium Phenomena
  • Impurities with Long-Range or Tunable Interactions
  • Impurities as Quantum Probes of Many-Body Systems
  • Quantum Simulation and Information Approaches to Impurity Physics

The workshop schedule will combine pedagogical and cross-disciplinary presentations with more technical ones, leaving ample time for spontaneous discussions and thus fostering new collaborations and approaches in the study of impurity problems in emerging quantum science platforms.

Speakers
J. Arlt, Aarhus University, Denmark
C. Baroni, IQOQI Innsbruck, Austria
M. Berciu, University of British Columbia, Canada
A. Bergschneider, University of Bonn, Germany
G. Bruun, Aarhus University, Denmark
C. Chin, University of Chicago, USA
X. Cui, Chinese Academy of Sciences, China
E. Demler, ETH Zurich, Switzerland
C. Eigen, University of Cambridge, UK
D. Fausti, UNITS, Italy and FAU Erlangen, Germany
R. Fletcher, MIT, USA
C. Franchini, University of Vienna, Austria and University of Bologna, Italy
D. Golež, University of Ljubljana, Slovenia
A. Imamoglu, ETH Zurich, Switzerland 
M. Lebrat, University of Harvard and JILA, USA  
P. Massignan, Polytechnic University of Catalonia, Spain
A. Recati, CNR-INO, Italy
R. Schmidt, Heidelberg University, Germany
S. Skipetrov, LPMMC and CNRS, France
J. Tempere, University of Antwerp, Belgium
A. Widera, RPTU Kaiserslautern-Landau and State Research Center OPTIMAS, Germany

Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee.
 

Go to day
  • Monday, 23 February 2026
    • 08:30 - 09:00
      • 08:30 Registration formalities 30'
        REGISTRATION: Upon arrival, Visitors not staying in the ICTP Guest Houses, are kindly requested to complete registration formalities at the Adriatico Guest House (Lower level). The Registration Desk will be open in the morning starting from 8:30.
    • 09:00 - 19:00
      • 09:00 Polarons with nonlinear and long-range interactions with the bosonic bath 45'
        Speaker: Jacques TEMPERE (University of Antwerp, Belgium)
        Material: Abstract Video
      • 09:45 Novel theoretical approaches to the Fermi polaron problem 30'
        Speaker: Richard SCHMIDT (University of Heidelberg, Germany)
        Material: Abstract Video
      • 10:15 Fermi and Bose polarons in ultracold gases: universal concepts and key differences 30'
        Speaker: Pietro Alberto MASSIGNAN (Polytechnic University of Catalonia, Spain)
        Material: Abstract Video
      • 10:45 Coffee Break 45'
      • 11:30 Transition or Crossover: Visualizing competitive few-body correlations in Fermi polarons via energy dispersion 30'
        Speaker: Xiaoling CUI (Chinese Academy of Sciences, China)
        Material: Abstract Video
      • 12:00 Emerging Fermions in a Quantum Spin Liquid 30'
        Speaker: Georg Morten BRUUN (Aarhus University, Denmark)
        Material: Abstract Video
      • 12:30 Lunch break 1h30'
      • 14:00 Impurities strongly interacting with Bose gases 30'
        Speaker: Christoph EIGEN (University of Cambridge, UK)
        Material: Abstract Video
      • 14:30 The moving Fermi polaron 30'
        Speaker: Cosetta BARONI (University of Innsbruck, Austria)
        Material: Abstract Video
      • 15:00 Realization of chiral edge transport in a rotating Bose gas 30'
        Speaker: Richard FLETCHER (MIT, Usa)
        Material: Abstract Video
      • 15:30 Coffee Break 30'
      • 16:00 Poster Session 2h0' ( Magnetic Boards outside the Giambiagi LH )
        Material: Booklet Presenters
      • 18:00 Light Aperitivo 1h0' ( Adriatico Cafeteria )
        All Participants are cordially invited to the Light Aperitivo
  • Tuesday, 24 February 2026
    • 09:00 - 16:00
      • 09:00 When Impurities Meet Efimov Physics: Fermion-Mediated Pairing in a Quantum Gas 45'
        Speaker: Cheng CHIN (University of Chicago, USA)
        Material: Abstract Video
      • 09:45 Small polarons in solid state systems by first principles 30'
        Speaker: Cesare FRANCHINI (Technical University Vienna, Austria)
        Material: Abstract Video
      • 10:15 Insights about the ground-state of liquids of incoherent bipolarons obtained from single-electron removal spectral weights 30'
        Speaker: Mona BERCIU (University of British Columbia, Canada)
        Material: Abstract Video
      • 10:45 Group Photo 5'
      • 10:50 Coffee Break 40'
      • 11:30 Characterizing interactions between excitons in monolayer semiconductors 30'
        Speaker: Andrea BERGSCHNEIDER (University of Bonn, Germany)
        Material: Abstract Video
      • 12:00 Novel Spectroscopic Probes for Quantum Materials and Simulators 30'
        Speaker: Martin LEBRAT (Harvard University & JILA, USA)
        Material: Abstract
      • 12:30 Lunch break 2h0'
        The afternoon session will be held at the Budinich LH, Leonardo Building
      • 14:30 Dopants in quantum spin lattices: from quantum simulators to high precision numerics 30' ( Budinich Lecture Hall )
        Speaker: Kristian Knakkergaard NIELSEN (University of Copenhagen, Denmark)
        Material: Abstract Video
      • 15:00 Optical and cavity engineering of driven excitonic condensates 30' ( Budinich Lecture Hall )
        Speaker: Denis GOLEZ (Josef Stefan Institute Ljubljana, Slovenia)
        Material: Abstract Video
      • 15:30 Coffee Break 30'
    • 16:00 - 18:00 ICTP Colloquium by Atac IMAMOGLU
      The Colloquium will be livestreamed at:ictp.it/livestream
      Location: Budinich Lecture Hall
      • 16:00 Optical investigation of strongly correlated electrons 1h0'
        Speaker: Atac IMAMOGLU (ETH Zurich, Switzerland)
      • 17:00 Refreshments & free discussions 1h0'
  • Wednesday, 25 February 2026
    • 09:00 - 16:30
      • 09:00 Spectroscopy of magnetic polarons in geometrically frustrated systems 45'
        Speaker: Eugene DEMLER (ETH Zurich, Switzerland)
        Material: Abstract Video
      • 09:45 Controlling the functionality of quantum materials by light 30'
        Speaker: Daniele FAUSTI (FAU Erlangen-Nürnberg, Germany)
        Material: Abstract Video
      • 10:15 Forming a bound state in the continuum by interference of Floquet-Feshbach resonances 30'
        Speaker: Artur WIDERA (RPTU, Germany)
        Material: Abstract Video
      • 10:45 Coffee Break 45'
      • 11:30 Deeply bound polaronic states 30'
        Speaker: Jan Joachim ARLT (Aarhus University, Denmark)
        Material: Abstract Video
      • 12:00 Anderson localization in a disorder-free atomic mixture 30'
        Speaker: Sergey SKIPETROV (LPMMC & CNRS, France)
        Material: Abstract Video
      • 12:30 Lunch break 1h45'
      • 14:15 Lab Tours (Basovizza) 1h30'
      • 15:45 Departure 45'