Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Slow dynamics and aging in a constrained diffusion model.

F Corberi1, M Nicodemi, M Piccioni

  • 1Dipartimento di Fisica, Universitá di Salerno, and Istituto Nazionale per la Fisica della Materia, Unitá di Salerno, 84081 Baronissi, Italy.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|April 20, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Coarsening in the persistent voter model: Analytical results.

Physical review. E·2025
Same author

Phenogenetic profile and agronomic contribution of Azospirillum argentinense Az39<sup>T</sup>, a reference strain for the South American inoculant industry.

Microbiological research·2024
Same author

Unraveling Azospirillum's colonization ability through microbiological and molecular evidence.

Journal of applied microbiology·2023
Same author

Volumetric histogram-based analysis of cardiac magnetic resonance T1 mapping: A tool to evaluate myocardial diffuse fibrosis.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)·2021
Same author

Day and blue light modify growth, cell physiology and indole-3-acetic acid production of Azospirillum brasilense Az39 under planktonic growth conditions.

Journal of applied microbiology·2020
Same author

Azospirillum brasilense Az39, a model rhizobacterium with AHL quorum-quenching capacity.

Journal of applied microbiology·2019
Same journal

Tension on dsDNA bound to ssDNA-RecA filaments may play an important role in driving efficient and accurate homology recognition and strand exchange.

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Amplitude-phase coupling drives chimera states in globally coupled laser networks [Phys. Rev. E 91, 040901(R) (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Shapes of sedimenting soft elastic capsules in a viscous fluid [Phys. Rev. E 92, 033003 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Erratum: Attenuation of excitation decay rate due to collective effect [Phys. Rev. E 90, 022142 (2014)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Role of connectivity and fluctuations in the nucleation of calcium waves in cardiac cells [Phys. Rev. E 92, 052715 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
Same journal

Publisher's Note: Lattice Boltzmann approach for complex nonequilibrium flows [Phys. Rev. E 92, 043308 (2015)].

Physical review. E, Statistical, nonlinear, and soft matter physics·2016
See all related articles

This study analyzes a diffusive model for supercooled liquids and glassy systems. Deep quenches in dense systems lead to slow, aging dynamics with decreasing particle diffusivity before equilibrium is reached.

Area of Science:

  • Condensed matter physics
  • Statistical mechanics
  • Materials science

Background:

  • Supercooled liquids and glassy systems exhibit complex dynamics near and above the glass transition temperature.
  • Understanding off-equilibrium dynamics is crucial for characterizing these materials.
  • Existing models often simplify the kinetic constraints present in dense systems.

Purpose of the Study:

  • To perform a comprehensive analysis of a schematic diffusive model for supercooled liquids and glassy systems.
  • To investigate the behavior of this model under sudden quench processes.
  • To explore the emergence of aging dynamics and the breakdown of the fluctuation-dissipation theorem.

Main Methods:

  • Analytical investigation using a mean-field approach.

Related Experiment Videos

  • Numerical simulations of the governing equations.
  • Calculation of autocorrelation and linear response functions.

    • Main Results:

    • Deep quenches in dense systems induce long-lasting off-equilibrium dynamics characterized by aging.
    • Particle diffusivity (D) decreases over time in the off-equilibrium state, unlike standard diffusion.
    • Autocorrelation functions decay slower than exponential, following an enhanced power law in the mean-field approximation.
    • The fluctuation-dissipation theorem breaks down, but an effective temperature approaching the bath temperature from above can be defined.

    Conclusions:

    • The analyzed schematic diffusive model captures essential features of aging in dense glassy systems.
    • The model provides insights into the slow kinetics and breakdown of equilibrium theorems.
    • The concept of an effective temperature offers a way to characterize the system's approach to equilibrium.