Scientific Calendar Event

The conference is live-streamed on the ICTP Condensed Matter and Statistical Physics YouTube page at the following link:
An ICTP virtual meeting

Landau's idea of classifying phases of matter in terms of symmetry breaking is a cornerstone of modern physics. Can time-translation invariance be spontaneously broken? The possible existence of time-crystals was first addressed by Wilczek for quantum many-body systems, and together with Shapere for classical systems, launching an intense activity both theoretically and experimentally. Despite their conceptual simplicity and apparent similarity to ordinary crystals, they were experimentally observed only three years ago, eighty years after the Landau theory of symmetry breaking. 
The field is continuing to grow fed with new theoretical ideas and experimental works. Main goal of the conference is to bring together the most active groups in the field to exchange their latest results.

Topics that will be covered in the activity include:
- discrete time-crystals
- continuous time-translation symmetry breaking
- dissipative time crystals
- time-crystals in classical systems
- condensed matter physics in time crystals

V. ELTSOV, Aalto University, Finland
L. GUO, MPI for the Science of Light, Germany
P. HANNAFORD, Swinburne University of Technology, Australia
A. HEMMERICH, University of Hamburg, Germany
V. KHEMANI, Stanford University, USA
A. KOSIOR, MPI for Complex Systems, Germany
O. KYRIIENKO, University of Exeter, UK
I. LESANOVSKY, Nottingham University, UK
W.V. LIU, University of Pittsburgh, USA
J. MARINO, Mainz University, Germany
A. NUNNENKAMP, Cambridge University, UK
A. RUSSOMANNO, MPI for Complex Systems, Germany
A. SANPERA, Universitat Autonoma Barcelona, Spain
M. SCHIRO, College de France, France
M. SEGEV, Technion, Israel
A. SHAPERE, University of Kentucky, USA
H. TAHERI, University of California Riverside, USA
M. UEDA, University of Tokyo, Japan
P. VAN DER STRATEN, Utrecht University, The Netherlands
N. YAO, UC Berkeley, USA
O. ZILBERBERG, ETH Zurich, Switzerland
Go to day
  • Monday, 8 March 2021
    • 08:45 - 09:00 Welcome remarks
    • 09:00 - 14:00
      • 09:00 Discrete Time Crystals in a Bouncing BEC 30'
        Speaker: Peter HANNAFORD (Swinburne University of Technology, Australia)
        Material: Abstract Video
      • 09:30 Many-Body Synchronization in a Classical Hamiltonian System and the Effect of Quantum Fluctuations 30'
        Speaker: Angelo RUSSOMANNO (MPI for Complex Systems, Germany)
        Material: Abstract Video
      • 10:00 Spontaneous Symmetry Breaking in a Discrete Space-Time Crystal 30'
        Speaker: Peter VAN DER STRATEN (Utrecht University, The Netherlands)
        Material: Abstract Video
      • 10:30 Break 30'
      • 11:00 Topological Phase Space Lattice Waves 30'
        Speaker: Lingzhen GUO (MPI for the Science of Light, Germany)
        Material: Abstract Video
      • 11:30 Adiabatic classical discrete time crystals 20'
        Speaker: Anna M. E. B. ROSSI (Institute of Physiks, The University of Bayreuth, Germany)
        Material: Abstract Video
      • 11:50 Non-Abelian Bloch oscillations in higher-order topological insulators 20'
        Speaker: Nathan GOLDMAN (Université Libre de Bruxelles (ULB), Belgium)
        Material: Abstract Video
      • 12:10 Lunch time 1h50'
    • 14:00 - 15:30
      • 14:00 ICTP Colloquium 1h30'
        All participants are welcome to attend. 
        More information can be found at:
        Speaker: Frank WILCZEK (Center for Theoretical Physics, MIT, Cambridge, USA)
        Material: Link
    • 15:30 - 17:00
      • 15:30 Quantum time crystals from Hamiltonians with long-range interactions 30'
        Speaker: Oleksandr KYRIIENKO (University of Exeter)
        Material: Abstract Video
      • 16:00 Interacting superfluid time crystals 30'
        Speaker: Vladimir ELTSOV (Aalto University, Finland)
        Material: Abstract Video
      • 16:30 Break 30'
    • 17:00 - 18:30
  • Tuesday, 9 March 2021
    • 09:00 - 17:30
      • 09:00 Beyond-Hermitian Quantum Physics 30'
        Speaker: Masahito UEDA (University of Tokyo, JAPAN)
        Material: Abstract
      • 09:30 Dissipative time crystal in an atom-cavity system 30'
        Speaker: Andreas HEMMERICH (University of Hamburg)
        Material: Abstract Video
      • 10:00 Homogeneous Floquet time crystal from weak ergodicity breaking 20'
        The Talk is CANCELLED
        Speaker: Hadi YARLOO (Sharif university of technology-Department of Physics, Iran)
        Material: Abstract
      • 10:20 Break 40'
      • 11:00 Time crystallinity in open quantum systems 30'
        Speaker: Anna SANPERA (Universitat Autonoma Barcelona, Barcelona)
        Material: Abstract Video
      • 11:30 Dissipative phase diagram of a periodically driven quantum many-body optics platform 30'
        Speaker: Jamir MARINO (Mainz University, Germany)
        Material: Abstract Video
      • 12:00 Higgs time crystal in a high-Tc superconductor 20'
        Speaker: Guido HOMANN (Institute of Laser Physics, University of Hamburg, Germany)
        Material: Abstract Video
      • 12:20 Engineering time-space crystalline structures 20'
        Speaker: Giedrius ZLABYS (Institute of Theoretical Physics and Astronomy, Vilnius University, Lithuania)
        Material: Abstract Video
      • 12:40 Lunch time 1h50'
      • 14:30 Quantum Melting of a Dissipative Time Crystal 30'
        Speaker: Marco SCHIRO (College de France, France)
        Material: Abstract Video
      • 15:00 Time crystallinity in Kerr-nonlinear optical resonators 30'
        Speaker: Hossein TAHERI (University of California Riverside, USA)
        Material: Abstract Video
      • 15:30 Time-crystal phase transition, fluctuations and quantum correlations in an emitter-waveguide system with feedback 30'
        Speaker: Igor LESANOVSKY (Nottingham University, UK)
        Material: Abstract Video
      • 16:00 Break 30'
      • 16:30 From a continuous to a discrete dissipative time crystal and the onset of entrainment 20'
        Speaker: Albert CABOT MARTORELL (IFISC (Institute for Cross-Disciplinary Physics and Complex Systems), Spain)
        Material: Abstract Video
      • 16:50 Boundary time crystals in collective d-level systems 20'
        Speaker: Fernando IEMINI DE REZENDE AGUIAR (Instituto de Fisica - Universidade Federal Fluminese, Brazil)
        Material: Abstract Video
      • 17:10 Cosmological time crystal: Cyclic universe with a small cosmological constant in a toy model approach 20'
        Speaker: Praloy DAS (Indian Statistical Institute, Kolkata, India)
        Material: Abstract Video
  • Wednesday, 10 March 2021
    • 09:00 - 15:45
      • 09:00 A one dimensional, long-range interacting, prethermal time crystal 30'
        Speaker: Normal YAO (UC Berkeley, USA)
        Material: Abstract Video
      • 09:30 Many-body physics in the NISQ era: quantum programming a discrete time crystal 30'
        Speaker: Vedika KHEMANI (Stanford University, USA)
        Material: Abstract Video
      • 10:00 Photonic Time-Crystals 30'
        Speaker: Mordechai SEGEV (Technion, Israel)
        Material: Abstract Video
      • 10:30 Break 30'
      • 11:00 Discrete time crystals beyond the MBL paradigm 30'
        Speaker: Andreas NUNNENKAMP (Cambridge University, UK)
        Material: Video
      • 11:30 Classical Many-Body Time Crystals 30'
        Speaker: Oded ZILBERBERG (ETH Zurich, Switzerland)
        Material: Abstract Video
      • 12:00 Lunch time 2h0'
      • 14:00 Quantum temporal orders from real Floquet to imaginary time crystal 30'
        Speaker: W. Vincent LIU (University of Pittsburgh, USA)
        Material: Abstract Video
      • 14:30 Dynamics of Mechanical Time Crystals 30'
        Speaker: Alfred SHAPERE (University of Kentucky, USA)
        Material: Abstract Video
      • 15:00 Flat bands and inseparable 2D time crystal lattices on the Möbius strip 30'
        Speaker: Arkadiusz KOSIOR (MPI for Complex Systems, Germany)
        Material: Abstract Video
      • 15:30 Concluding remarks 15'