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Showing 1–13 of 13 results
Advanced filters: Author: Ludovic Berthier Clear advanced filters

  • A family of glassy materials emerges from local structural optimization, revealing an unexpected form of long-range orientational order.

    • Ludovic Berthier
    • M. D. Ediger
    News & Views
    Nature Materials
    P: 1-2

  • The nature of the defects in amorphous materials, analogous to vacancies and dislocations in crystals, remains a matter of debate. Scalliet et al. show that localized and extended defects coexist in a wide range of conditions, yet are associated with distinct energy scales in a prototypical glass model.

    • Camille Scalliet
    • Ludovic Berthier
    • Francesco Zamponi
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-10

  • Identifying the nature of the glass transition is challenging because relevant experiments or analytical descriptions are hard to achieve. Here, Berthier et al. develop a Monte Carlo numerical tool to investigate two-dimensional glasses and find a zero-temperature thermodynamic glass transition.

    • Ludovic Berthier
    • Patrick Charbonneau
    • Sho Yaida
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • The nature of the vibrational modes of amorphous solids is of fundamental interest, but assessing them is challenging due to very long equilibrium times involved. Wang et al. numerically model the localized low-frequency vibrational modes in glasses and show the sensitivity of their populations to glass stability.

    • Lijin Wang
    • Andrea Ninarello
    • Elijah Flenner
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Active materials, such as motile cells and self-propelled colloids, exhibit glassy effects, but little is known about the glass transition far from equilibrium. A study of model glasses subject to non-thermal driving and dissipation reveals signatures of dynamic arrest that can be understood in terms of an effective equilibrium description.

    • Ludovic Berthier
    • Jorge Kurchan
    Research
    Nature Physics
    Volume: 9, P: 310-314

  • Glass-forming liquids are generally thought to relax through a collective rearrangement of domains, correlated over a length scale that increases with decreasing temperature. A numerical study now reveals a surprising twist to the story, claiming that relaxation depends non-monotonically on temperature.

    • Walter Kob
    • Sándalo Roldán-Vargas
    • Ludovic Berthier
    Research
    Nature Physics
    Volume: 8, P: 164-167

  • The dynamic relaxation spectrum of a supercooled liquid is asymmetric near the glass transition. Overcoming the difficulty of accessing low temperatures and long timescales, simulations now attribute this feature to dynamic facilitation.

    • Benjamin Guiselin
    • Camille Scalliet
    • Ludovic Berthier
    Research
    Nature Physics
    Volume: 18, P: 468-472

  • Rare quantum tunneling two-level systems are known to govern the glass physics at low temperatures, but it remains challenging to detect them in simulations. Ciarella et al. show a machine learning approach to efficiently identify the structural defects, allowing to predict the quantum splitting.

    • Simone Ciarella
    • Dmytro Khomenko
    • Francesco Zamponi
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-11

  • Amorphous materials yield through complex, history-dependent mechanisms involving localized defects and avalanche dynamics. This Review unifies theoretical advances across glasses, foams, biological tissues and active matter, revealing universal features and critical behaviour that govern the transition from elasticity to plastic flow and macroscopic failure.

    • Ludovic Berthier
    • Giulio Biroli
    • Francesco Zamponi
    Reviews
    Nature Reviews Physics
    Volume: 7, P: 313-330

  • Slow heterogeneous dynamics and the absence of visible structural order make it difficult to numerically and theoretically investigate glass-forming materials. This Technical Review outlines the role that machine learning tools can have and identifies key challenges, possible approaches and appropriate benchmarks.

    • Gerhard Jung
    • Rinske M. Alkemade
    • Giulio Biroli
    Reviews
    Nature Reviews Physics
    Volume: 7, P: 91-104

  • Computer simulations may unlock crucial aspects of how a liquid transforms into a glass, but are hampered by rapidly growing relaxation times near the transition. This Review summarizes progress towards overcoming this problem and creating realistic in silico glasses, and discusses what understanding has been enabled.

    • Ludovic Berthier
    • David R. Reichman
    Reviews
    Nature Reviews Physics
    Volume: 5, P: 102-116